FAQ

Q1

【Function】What Is the Main Difference Between DC and AC Fans?

Ans

DC fans use direct current (low voltage), while AC fans use alternating current (high voltage).

Q2

【Function】What Is the Main Function of an AC Power Cord?

Ans

It is used to transmit AC power to devices, providing a stable power supply.

Q3

【Function】What Is the Main Function of a Lead-Acid Battery?

Ans

To provide a stable DC power supply, supporting backup power, energy storage, and startup power functions.

Q4

【Function】What Is the Main Function of a Plastic Distribution Box?

Ans

It serves as a waterproof and dustproof enclosure, primarily used to protect internal wiring, instruments, 
and meters from water ingress, which could impact their performance.

Q5

【Function】What Are the Basic Principles of Proximity Sensors?

Ans

Proximity sensors are categorized into electromagnetic field sensors and capacitive effect sensors, which detect the presence or approach of an object without physical contact. They replace traditional contact-based detection methods such as limit switches. The principle involves converting the movement or presence of a detected object into an electrical signal. Detection methods include:
Electromagnetic induction: Generates eddy currents on metal objects for detection.
Capacitive sensing: Uses the electrostatic coefficient on an object's surface for detection.

Q6

【Function】What Is the Main Function of a 19-Inch Rack?

Ans

It is used for installing and protecting servers, network equipment, storage devices, and other IT equipment.

Q7

【Function】Why Is the Rack Standardized at 19 Inches?

Ans

The 19-inch size follows the international standard (IEC 60297), making it easier to install equipment from different manufacturers.

Q8

【Function】How Far Can Proximity Sensors Detect?

Ans

Depending on the model, the detection range introduced by MEAN WELL is 1~18mm.

Q9

【Function】How Is the Heat Resistance of a Plastic Distribution Box?

Ans

The typical heat resistance range is -40°C to 100°C, depending on the material. MEAN WELL's plastic boxes are made of PC material.

Q10

【Function】How Long Is the Lifespan of a Lead-Acid Battery?

Ans

The lifespan is generally 3 to 5 years, while deep-cycle types can last over 8 years.

Q11

【Function】What Is the Rated Voltage of the Power Cord?

Ans

The rated voltage is 125V, 250V.

Q12

【Function】How Can the Speed of a DC Fan Be Adjusted?

Ans

By changing the voltage or using PWM (Pulse Width Modulation) signals.

Q13

【Function】Can the Speed of an AC Fan Be Adjusted?

Ans

Yes, but it requires a frequency converter or speed controller.

Q14

【Function】Does the Power Cord Have Overload Protection?

Ans

The power cord itself does not have overload protection, but it can be used with power strips or power protection devices.

Q15

【Function】Does the Lead-Acid Battery Have Deep Cycle Capability?

Ans

The FT model has deep cycle capability, making it particularly suitable for energy storage systems.

Q16

【Function】Does the Plastic Distribution Box Have Insulation Properties?

Ans

Yes, it has excellent electrical insulation properties, making it suitable for low-voltage applications.

Q17

【Function】How Can False Detection Be Avoided?

Ans

Ensure correct object size, detection distance, material, and installation environment (embedded or exposed installation). Refer to the specification (Rectangular Type LINK, Tubular Anti-bending Type LINK )for model selection and follow installation guidelines.

Q18

【Function】How Does the Rack Provide Cooling Functions?

Ans

It typically dissipates heat through ventilation holes. For enhanced cooling, fan modules or forced cooling systems need to be installed separately.

Q19

【Function】What Is the Load Capacity of a 19-Inch Rack?

Ans

It can support up to 1000 kg.

Q20

【Function】What Is the Sensitivity of a Proximity Sensor?

Ans

Sensitivity refers to the sensor's ability to react to target objects, which can usually be adjusted to fit different applications.

Q21

【Function】Is the Plastic Distribution Box Waterproof?

Ans

Yes, it has a waterproof rating of IP66.

Q22

【Function】What Is the Self-Discharge Rate of a Lead-Acid Battery?

Ans

The self-discharge rate is ≤3% per month, which is lower than other lead-acid batteries.

Q23

【Function】What Is the Conductor Material of the Power Cord?

Ans

It is usually made of copper or tinned copper, ensuring low resistance and high conductivity.

Q24

【Function】Is a DC Fan More Efficient Than an AC Fan?

Ans

Yes, DC fans are generally more energy-efficient and operate with higher efficiency.

Q25

【Function】Is an AC Fan More Durable Than a DC Fan?

Ans

Yes, due to its simpler structure, an AC fan is typically more durable, but its lifespan depends on the application environment.

Q26

【Function】What Is the Rated Current of the Power Cord?

Ans

The rated current is 2.5A, 7A, 10A, and should be selected based on the power requirements of the equipment.

Q27

【Function】Does the Lead-Acid Battery Support High-Current Discharge?

Ans

High-current discharge requires reviewing technical specifications. If needed, please inquire about specific high-rate battery models designed for high-current discharge.

Q28

【Function】Can the Plastic Distribution Box Be Used Outdoors?

Ans

Yes, MEAN WELL's plastic distribution boxes use PC material, designed for UV resistance.

Q29

【Function】Can Proximity Sensors Detect Transparent Objects?

Ans

Inductive proximity sensors are specifically designed to detect objects containing metal.

Q30

【Function】How Are Cooling Fans Installed in a Rack?

Ans

The fan module can be installed on the top, bottom, or rear panel.

Q31

【Function】How Can a Rack Achieve Noise Reduction?

Ans

Using silent fans and sound-absorbing panels helps to reduce noise.

Q32

【Function】Can Inductive Proximity Sensors Detect Non-Metallic Objects?

Ans

Typically, inductive sensors only detect metal. For non-metallic objects, consider capacitive, optical, ultrasonic, or fiber-optic sensors for detection.

Q33

【Function】Can the Plastic Distribution Box Withstand External Impact?

Ans

It has a certain level of impact resistance, reaching IK9, but is not as strong as a metal distribution box.

Q34

【Function】Do Lead-Acid Batteries Require Regular Water Refilling?

Ans

MEAN WELL uses VRLA (Valve Regulated Lead‐Acid) batteries, which do not require water refilling.

Q35

【Function】Does the Power Cord Support High-Temperature Resistance?

Ans

Depending on the model, it can withstand temperatures of 60°C, 70°C, or 105°C.

Q36

【Function】Does a DC Fan Generate Less Noise Than an AC Fan?

Ans

Yes, DC fans run more smoothly and support speed control, resulting in lower noise levels.

Q37

【Function】Does an AC Fan Operate at a Fixed Speed?

Ans

Yes, standard AC fans typically run at a fixed speed.

Q38

【Function】What Are the Available Lengths for the Power Cord?

Ans

Depending on the model, common lengths are 1.5m and 1.8m.

Q39

【Function】Are the Lead-Acid Batteries Leak-Proof?

Ans

Leoch lead-acid batteries are designed with a sealed structure, ensuring complete leak protection.

Q40

【Function】Does the Plastic Distribution Box Require Grounding?

Ans

No, since the plastic enclosure itself is non-conductive, grounding is not required.

Q41

【Function】How Do Sensors Handle High-Speed Moving Targets?

Ans

Use high-frequency sensors with a fast response rate.

Q42

【Function】Can a UPS Be Installed in the Rack?

Ans

Yes, but the UPS size and load requirements need to be confirmed. The selected load-bearing plate should support up to 150 kg.

Q43

【Function】Can Proximity Sensors Detect Very Small Objects?

Ans

Yes, but proper selection based on the specification is required.
Rectangular Type:
Tubular Anti-bending Type:

Q44

【Function】What Is the Lifespan of the Plastic Distribution Box?

Ans

Typically, it can last more than 10 years, depending on environmental conditions.

Q45

【Function】What Is the Operating Temperature Range of a Lead-Acid Battery?

Ans

Battery performance is significantly affected by environmental temperature. 
It is recommended to avoid excessively low or high temperatures and maintain an optimal operating temperature of 25°C.

Q46

【Function】What Are the Available Plugs for the Power Cord?

Ans

Depending on the model, available plug types include American (US), European (EU), and Chinese (CN) standards.

Q47

【Function】How to Determine a Fan's Airflow Performance?

Ans

By measuring CFM (Cubic Feet per Minute) or m³/h (Cubic Meters per Hour).

Q48

【Function】What Is Static Pressure in a Fan?

Ans

Static pressure refers to a fan's ability to overcome airflow resistance, making it suitable for high-resistance applications.

Q49

【Function】Does the Lead-Acid Battery Have Overcharge Protection?

Ans

Yes, but overcharge protection requires a dedicated charger.

Q50

【Function】Does the lead-acid battery have overcharge protection?

Ans

Overcharge protection requires the use of a dedicated charger.

Q51

【Function】Is the Metal Distribution Box More Durable?

Ans

Yes, its metal structure is more robust, making it suitable for heavy-duty applications.

Q52

【Function】Are Proximity Sensors Affected by the Environment?

Ans

Unlike contact-based sensors, proximity sensors have high resistance to temperature, humidity, and dust. 
Refer to the specification for detailed environmental tolerances.
Rectangular Type:
Tubular Anti-bending Type:

Q53

【Function】What Type of Output Signals Do Proximity Sensors Provide?

Ans

Sensors provide either digital (switching signals) or analog (voltage/current) signals, with most using digital outputs (NPN / PNP).

Q54

【Function】How Is the Fire Resistance of a Metal Distribution Box?

Ans

Metal materials have excellent fire resistance properties.

Q55

【Function】Can Lead-Acid Batteries Be Connected in Series and Parallel?

Ans

Yes, but battery consistency must be ensured.

Q56

【Function】Does the AC Power Cord Have Flame-Retardant Properties?

Ans

Yes, the material of the power cord has flame-retardant properties to prevent fire hazards.

Q57

【Function】Are DC Fans Easier to Control Than AC Fans?

Ans

Yes, DC fans support finer speed and temperature control.

Q58

【Function】Does Fan Speed Affect Its Lifespan?

Ans

Yes, higher speeds can shorten a fan's lifespan.

Q59

【Function】Will the Power Cord Generate Heat?

Ans

It will not generate heat under normal use. However, it may heat up in case of overload or damage.

Q60

【Function】Can Lead-Acid Batteries Be Float-Charged for a Long Time?

Ans

Yes, it is suitable for UPS and backup power systems.

Q61

【Function】Does a Metal Distribution Box Provide Heat Dissipation?

Ans

Yes, it has better thermal conductivity, making it ideal for high-power equipment.

Q62

【Function】How Do Sensors Manage Multi-target Interference?

Ans

By using directional design and background suppression functions.

Q63

【Function】Can Proximity Sensors Distinguish Different Materials?

Ans

Inductive sensors detect metal objects (e.g., steel, aluminum, brass, copper).Capacitive or optical sensors can differentiate between metals, resins, liquids, powders, etc. (Note: Inductive sensors have varying detection ranges depending on metal composition.)

Q64

【Function】Is the Metal Distribution Box Waterproof?

Ans

Yes, it has an IP66 protection rating.

Q65

【Function】Are Lead-Acid Batteries Suitable for Indoor Installation?

Ans

Yes, especially models with no acid mist emission are highly recommended.

Q66

【Function】Does the AC Power Cord Support High-Power Devices?

Ans

Yes, it supports high-power applications, and the model can be selected based on the wire's cross-sectional area.

Q67

【Function】How to Reduce Fan Noise?

Ans

Choose low-noise fans, optimize the installation environment, or adjust the speed.

Q68

【Function】Do AC/DC Fans Have High Startup Current?

Ans

AC fans typically have a higher startup current, whereas DC fans have a relatively lower startup current.

Q69

【Function】Does the AC Power Cord Provide Grounding Protection?

Ans

Three-core power cords provide grounding protection, ensuring device safety.

Q70

【Function】What Is the Charge/Discharge Efficiency of Lead-Acid Batteries?

Ans

The charge and discharge efficiency is greater than 90%.

Q71

【Function】Does the Metal Distribution Box Require Regular Anti-Corrosion Treatment?

Ans

Yes, especially for carbon steel distribution boxes, periodic anti-corrosion maintenance is needed.

Q72

【Function】What Is the Detection Frequency of a Sensor?

Ans

The number of detection outputs per second when a standard target repeatedly approaches the sensor.

Q73

【Function】Can Sensors Withstand Vibration?

Ans

Yes, but in environments with high vibration or impact, the detection distance should be selected with a safety margin. 
Follow installation torque guidelines to prevent loosening due to vibration.

Q74

【Function】Is the Metal Distribution Box Easy to Maintain?

Ans

Yes, it is equipped with door locks and removable panels, making maintenance more convenient.

Q75

【Function】Do Lead-Acid Batteries Have a Memory Effect?

Ans

No memory effect; they can be charged and discharged at any time.

Q76

【Function】What Is the Typical Lifespan of a AC Power Cord?

Ans

The lifespan is typically 5-10 years, depending on the usage environment and frequency.

Q77

【Function】Is Lubrication Needed for Fan Maintenance?

Ans

Most fans use maintenance-free bearings and do not require additional lubrication.

Q78

【Function】What Are the Types of Fan Bearing?

Ans

The common types are ball bearings and sleeve bearings. Ball bearings have a longer lifespan, and MEAN WELL uses ball bearings.

Q79

【Function】What Is the Charging Voltage Range for Lead-Acid Batteries?

Ans

For a 12V battery, the float charge voltage ranges from 13.38V to 13.62V, and the equalization charge voltage ranges from 14.1V to 14.4V.

Q80

【Function】Can Sensors Withstand High Temperatures?

Ans

The operating temperature is around -20℃ to + 60℃

Q81

【Function】Can Sensors Detect Non-Contact Liquids?

Ans

Capacitive sensors can detect the presence of liquids.

Q82

【Function】Does the Battery Support Fast Charging?

Ans

Yes, but it requires a dedicated fast charger to avoid damage.

Q83

【Function】What Is the Operating Temperature Range of Fans?

Ans

Typically -20°C to 70°C, but it varies by model.

Q84

【Function】What Is a Smart Control Fan?

Ans

The smart control fan features a built-in control module that can automatically adjust its speed based on temperature or load.

Q85

【Function】What Is the Internal Resistance of Lead-Acid Batteries?

Ans

The DJM series ranges from 5.5 to 10.0mΩ, and the FT series ranges from 4.3 to 9.0mΩ, depending on the specific model.

Q86

【Function】Do Proximity Sensors Support Remote Monitoring?

Ans

Some models support remote monitoring via IO-Link or other communication protocols.

Q87

【Function】What Is the Primary Function of a Terminal Block?

Ans

It is used for power distribution and electrical connections in various devices and machinery.

Q88

【Function】What Is the Voltage Range of Fans?

Ans

Common DC fan voltages: 5V, 12V, 24V.
Common AC fan voltages: 110V, 220V. MEAN WELL offers DC 12V and AC 110V / 220V models.

Q89

【Function】Can a Terminal Block Connect to Multi-Core Cables?

Ans

Yes, depending on the model, it can connect single-core or multi-core cables.

Q90

【Function】Can a Terminal Block Support Bidirectional Connections?

Ans

Yes, it can connect both input and output wiring.

Q91

【Function】Does a Terminal Block Have a Labeling Function?

Ans

Yes, most terminal blocks come with label slots for easy identification.

Q92

【Function】What Are the Available Wiring Methods for Terminal Blocks?

Ans

Screw-type, clamp-type, and plug-in type connections.

Q93

【Function】Can a Terminal Block Be Connected in Parallel?

Ans

Yes, some models allow parallel connections via bridging bars.

Q94

【Function】Do Terminal Blocks Require Grounding?

Ans

Grounding-type terminal blocks can be used if required.

Q95

【Function】Are Terminal Blocks Suitable for High-Voltage Applications?

Ans

Yes, but high-voltage-rated terminal blocks must be selected.

Q96

【Function】What Is the Main Function of a Switch?

Ans

A switch controls circuit connections, enabling the start or stop of a device.

Q97

【Function】What Is the Lifespan of a Switch?

Ans

Typically 100,000 to 1,000,000 operations, depending on the model.

Q98

【Function】Is the Switch Waterproof?

Ans

Except for limit switches, all switches feature waterproof designs.

Q99

【Function】Are There Switches With Indicator Lights?

Ans

Yes, please refer to the product "Pilot Light"  
Its light signal can display the operating status of the switch.

Q100

【Function】Does the Switch Support Dual-Circuit Control?

Ans

It depends on the circuit design, but DPST (Double Pole Single Throw) switches can support this function.

Q101

【Application】What Industries Can Proximity Sensors Be Used In?

Ans

They are widely used in automation production, semiconductor industry, automotive industry, warehousing and logistics, food industry, packaging industry, medical equipment, and home appliances, mainly in automated production industries.

Q102

【Application】Where Are 19-Inch Racks Commonly Used?

Ans

Data centers, server rooms, office network rooms, and industrial control rooms.

Q103

【Application】What Applications Are DC Fans Suitable For?

Ans

DC fans are suitable for electronic devices, servers, automotive cooling systems, and portable devices.

Q104

【Application】What Devices Are AC Power Cords Suitable For?

Ans

They are widely used for household appliances, office equipment, and industrial machinery.

Q105

【Application】What Industries Are Lead-Acid Batteries Suitable For?

Ans

They are widely used in telecommunications, power, medical, data centers, and transportation, etc.

Q106

【Application】What Applications Are Plastic Distribution Boxes Suitable For?

Ans

They are suitable for residential buildings, commercial buildings, and small industrial equipment.

Q107

【Application】Are Plastic Distribution Boxes Suitable for Humid Environments?

Ans

Yes, they have IP66 waterproof protection.

Q108

【Application】Are Lead-Acid Batteries Suitable for UPS Backup Power Systems?

Ans

Yes, they are highly suitable and serve as a core component of UPS systems.

Q109

【Application】Can the AC Power Cords Be Used for High-Power Devices?

Ans

Yes, but please select a large cross-sectional cable and a high-rated current model.

Q110

【Application】What Applications Are AC Fans Suitable For?

Ans

AC fans are ideal for industrial machinery, HVAC systems, and household appliances.

Q111

【Application】Are They Suitable for Small and Medium-Sized Enterprises?

Ans

Yes, they can be selected based on equipment requirements.

Q112

【Application】Can Sensors Be Used in Humid Environments?

Ans

Yes, all models are IP67.

Q113

【Application】Can Sensors Be Used on Robotic Arms?

Ans

Yes, they are used for positioning, detecting gripping, and placement actions, enabling material feeding and receiving.

Q114

【Application】How Do You Choose the Appropriate Rack Height?

Ans

Select based on the number of devices and reserved space, such as 15U, 22U, 30U, 35U, and 42U.

Q115

【Application】Are DC Fans Suitable for Battery-Powered Applications?

Ans

Yes, they are highly suitable due to their low power consumption.

Q116

【Application】Are the AC Power Cords Suitable for Medical Equipment?

Ans

Please choose a power cord that meets medical-grade standards, e.g. YP18+YC12.

Q117

【Application】Are Lead-Acid Batteries Suitable for Electric Vehicles?

Ans

Specialized lead-acid batteries are designed for electric vehicles. However, industrial batteries are primarily used for backup power in float charging applications and are not recommended for EV use.

Q118

【Application】Can Plastic Distribution Boxes Be Used in the Chemical Industry?

Ans

Yes, they have better corrosion resistance compared to metal distribution boxes.

Q119

【Application】Can Plastic Distribution Boxes Be Used for Portable Equipment?

Ans

Yes, plastic material is lightweight, making it easy to transport.

Q120

【Application】Are Lead-Acid Batteries Suitable for Solar Energy Storage Systems?

Ans

Yes, especially deep-cycle lead-acid batteries.

Q121

【Application】Are the AC Power Cords Suitable for High-Temperature Environments?

Ans

The maximum operating temperature for the current products is 105°C.

Q122

【Application】Can AC Fans Be Used in High-Temperature Environments?

Ans

Yes, but you need to select models designed for high-temperature resistance.

Q123

【Application】Are They Suitable for Network Devices?

Ans

Yes, network switches, routers, and other devices can be installed.

Q124

【Application】What Are Sensors' Typical Applications in the Automotive Industry?

Ans

Used for car door position detection, distance sensing, and automatic parking assistance.

Q125

【Application】Are Proximity Sensors Suitable for Medical Equipment?

Ans

Yes, especially for non-contact applications, such as liquid detection and equipment positioning.

Q126

【Application】Are They Suitable for Storage Equipment?

Ans

Yes, RAID systems and disk array controllers can be directly installed.

Q127

【Application】How Can Fans Be Used in Confined Spaces?

Ans

We recommend compact DC fans or slim-profile fans.

Q128

【Application】Are the AC Power Cords Suitable for Desktop Computers?

Ans

Yes, it is fully suitable. A standard three-prong plug power cord should be selected.

Q129

【Application】Can Lead-Acid Batteries Be Used for Wind Power Storage?

Ans

Yes, they are suitable for stabilizing output and energy storage in wind power applications.

Q130

【Application】Are Plastic Distribution Boxes Suitable for Telecom Rooms?

Ans

Yes, they are suitable for cable management in low-power and small-scale equipment.

Q131

【Application】Can Plastic Distribution Boxes Be Used Outdoors?

Ans

Yes, PC material is UV-resistant, making it suitable for outdoor applications.

Q132

【Application】Can Lead-Acid Batteries Be Used in Telecom Base Stations?

Ans

Yes, they are used as backup power for telecommunication base station equipment.

Q133

【Application】Are the AC Power Cords Suitable for Smart Home Systems?

Ans

Yes, they support smart sockets and controllers for power supply.

Q134

【Application】Are DC Fans Suitable for Mobile Devices?

Ans

Yes, their low power consumption and lightweight design make them ideal for mobile applications.

Q135

【Application】Do They Support Heavy Equipment Installation?

Ans

The rack supports up to 1000 kg, and the load-bearing plate supports up to 150 kg.

Q136

【Application】Can They Be Used in Precision Machining Equipment?

Ans

Yes, they are commonly used for tool position monitoring and workpiece inspection.

Q137

【Application】Can Proximity Sensors Detect Thin Films?

Ans

Capacitive and optical sensors can detect thin films.

Q138

【Application】Can They Be Used as a Carrier for Testing Equipment?

Ans

Yes, racks are commonly used in laboratories to install testing instruments.

Q139

【Application】Can Fans Be Used in Dust Removal Equipment?

Ans

Yes, especially high-static-pressure fans.

Q140

【Application】Are Lead-Acid Batteries Suitable for Emergency Lighting?

Ans

Yes, they are highly suitable for providing reliable short-term backup power.

Q141

【Application】Are Plastic Distribution Boxes Suitable for Low-Voltage DC Systems?

Ans

Yes, they are highly suitable, especially for solar power generation systems.

Q142

【Application】Are Plastic Distribution Boxes Suitable for the Food Processing Industry?

Ans

Yes, they meet hygiene and corrosion resistance requirements.

Q143

【Application】Can Lead-Acid Batteries Be Used in Medical Equipment?

Ans

Yes, they are suitable for ECG monitors, surgical lights, and other emergency power applications.

Q144

【Application】How to Choose the Right Fan for Server?

Ans

Select high-airflow, low-noise DC fans based on the server's power consumption and cooling needs.

Q145

【Application】Are They Suitable for Multi-Brand Equipment Integration?

Ans

Yes, as long as the products comply with the 19-inch standard, they can be installed.

Q146

【Application】How Are Proximity Sensors Applied in Warehouse Management?

Ans

They are used for goods positioning and automatic sorting systems.

Q147

【Application】Can Sensors Detect Liquid Levels Inside Non-Metallic Containers?

Ans

Yes, capacitive sensors are particularly suitable.

Q148

【Application】Are They Suitable for Temporary Exhibitions?

Ans

Yes, equipped with lockable caster wheels for easy movement and positioning, as well as leveling screws to maintain rack stability and prevent shaking.

Q149

【Application】Are AC Fans Suitable for Equipment Requiring High Airflow?

Ans

Yes, AC fans offer stable operation, making them ideal for high-airflow applications.

Q150

【Application】Can Lead-Acid Batteries Be Used for Mobile Communication Equipment?

Ans

Yes, their vibration-resistant design makes them suitable for mobile applications.

Q151

【Application】Are Plastic Distribution Boxes Suitable for Installation in Limited Spaces?

Ans

Yes, plastic distribution boxes are flexible in size and easy to install.

Q152

【Application】What Applications Are Metal Distribution Boxes Suitable For?

Ans

They are ideal for industrial environments, large-scale power distribution systems, and outdoor equipment.

Q153

【Application】Can Lead-Acid Batteries Be Used for Industrial Equipment?

Ans

Yes, they support the startup of high-load industrial equipment.

Q154

【Application】How Can Fans Be Used in Humid Environments?

Ans

Choose fans with waterproof ratings (e.g., IP55).

Q155

【Application】How Are Sensors Applied in CNC Machining Centers?

Ans

They are commonly used to detect tool positions and workpiece clamping status.

Q156

【Application】Where Are Terminal Blocks Commonly Used?

Ans

Distribution boxes, control cabinets, machinery, and electrical maintenance.

Q157

【Application】Are DC Fans Suitable for Precision Instruments?

Ans

Yes, their low-vibration design makes them highly suitable for precision instruments.

Q158

【Application】Can Lead-Acid Batteries Be Used for Cold Chain Logistics?

Ans

Yes, they offer long-term stable backup power for traffic signal systems.

Q159

【Application】Are Metal Distribution Boxes Suitable for High-Temperature or High-Humidity Environments?

Ans

Yes. For higher specifications, stainless steel distribution boxes are recommended.

Q160

【Application】Are Metal Distribution Boxes Suitable for Data Centers?

Ans

Yes, they are suitable for high-power servers and critical equipment power management.

Q161

【Application】Are Lead-Acid Batteries Suitable for Traffic Signal Backup Power?

Ans

Yes, they offer long-term stable backup power for traffic signal systems.

Q162

【Application】Can Fans Be Used in Hot and Cold Aisle Containment Systems?

Ans

Yes, they can guide and isolate hot and cold airflow.

Q163

【Application】Are Terminal Blocks Suitable for High-Temperature Environments?

Ans

Yes, with a maximum operating temperature of 105°C.

Q164

【Application】Are Terminal Blocks Suitable for Humid Environments?

Ans

Yes, especially for internal equipment use.

Q165

【Application】Are AC Fans Suitable for Continuous Operation?

Ans

Yes, they are designed for stable and continuous operation.

Q166

【Application】Can Lead-Acid Batteries Be Used for Home Energy Storage Systems?

Ans

Yes, especially gel lead-acid batteries.

Q167

【Application】Are Metal Distribution Boxes Suitable for the Power Industry?

Ans

Yes, they are commonly used for power distribution in power plants and substations.

Q168

【Application】Are Metal Distribution Boxes Suitable for Extreme Climate Conditions?

Ans

Yes, their metal structure can withstand extreme temperatures and sandstorms.

Q169

【Application】Are Lead-Acid Batteries Suitable for the Mining Industry?

Ans

Yes, they can be used for emergency power in mining equipment.

Q170

【Application】Can Fans Be Used for Automotive Cooling?

Ans

DC fans are commonly used in automotive air conditioning and cooling systems.

Q171

【Application】How Are Terminal Blocks Used in Machinery?

Ans

They connect external cables to DIN rail terminal blocks for circuit distribution.

Q172

【Application】Are Terminal Blocks Suitable for High-Frequency Signals?

Ans

DIN rail terminal blocks are suitable for such applications.

Q173

【Application】How Can Fans Be Applied to Ventilation Systems?

Ans

Choose high-airflow, high-efficiency AC or DC fans.

Q174

【Application】Can Lead-Acid Batteries Be Used for Marine Equipment?

Ans

Yes, they provide stable power support for ships and marine applications.

Q175

【Application】Are Metal Distribution Boxes Suitable for Industrial Automation Equipment?

Ans

Yes, they support heavy-duty machinery and high-power equipment connections.

Q176

【Application】Are Metal Distribution Boxes Suitable for Mining Equipment?

Ans

Yes, they can withstand vibration and corrosive environments.

Q177

【Application】Are Lead-Acid Batteries Suitable for Smart Grid Applications?

Ans

Yes, they support energy storage for power grid peak shaving.

Q178

【Application】Are Fans Suitable for High-Altitude Areas?

Ans

Yes, but cooling efficiency may be affected by air pressure.

Q179

【Application】Can Terminal Blocks Be Used in Industrial Automation Systems?

Ans

Yes, they are used for circuit distribution and signal connections.

Q180

【Application】Can Terminal Blocks Be Used in Mobile Equipment?

Ans

Yes, but vibration-resistant models should be selected.

Q181

【Application】Are Fans Suitable for High-Humidity Applications?

Ans

Yes, fans with moisture-resistant designs should be selected.

Q182

【Application】Can Lead-Acid Batteries Be Used for Small Tools?

Ans

Yes, they are commonly used in portable electric tools.

Q183

【Application】Are Metal Distribution Boxes Suitable for Installing High-Power UPS Systems?

Ans

Yes, metal distribution boxes have a higher load-bearing capacity.

Q184

【Application】Are Lead-Acid Batteries Suitable for Agricultural Equipment?

Ans

Yes, they are suitable for use in solar-powered irrigation pumps and agricultural machinery.

Q185

【Application】Can Fans Be Used in Air Filtration Equipment?

Ans

Yes, high-static-pressure fans provide stable airflow.

Q186

【Application】Are Terminal Blocks Suitable for Home Electrical Repairs?

Ans

Yes, but ensure the voltage and current ratings match the application.

Q187

【Application】Are Terminal Blocks Suitable for Temporary Circuit Connections?

Ans

Yes, especially plug-in type terminal blocks.

Q188

【Application】Are Fans Suitable for Renewable Energy Equipment?

Ans

Yes, they are suitable for cooling inside wind turbines and other renewable energy equipment.

Q189

【Application】Are Switches Suitable for Outdoor Applications?

Ans

Waterproof and dustproof switches with UV-resistant materials are best for outdoor use.

Q190

【Application】Can Switches Be Used in Lighting Systems?

Ans

Yes.

Q191

【Application】Are Switches Suitable for Industrial Control Equipment?

Ans

Yes, but high-capacity and durable models should be selected.

Q192

【Application】Are Switches Suitable for Smart Home Applications?

Ans

No, they are only suitable for general household applications.

Q193

【Application】Are Switches Suitable for Mobile Equipment?

Ans

Yes.

Q194

【Application】How Can Switches Be Used in Motor Control?

Ans

They can be directly used for motor control.

Q195

【Product】What Types of Proximity Sensors Are Available?

Ans

Inductive, capacitive, optical, and ultrasonic sensors.

Q196

【Product】What Are the Standard Sizes of a 19-Inch Rack?

Ans

There are five sizes: 15U, 22U, 30U, 35U, and 42U, with a width of 600mm and a depth of 750mm.

Q197

【Product】What Are the Common Sizes of DC and AC Fans?

Ans

Common sizes include 40, 80, 120, 172, and 200 mm.

Q198

【Product】Does the Power Cord Support Custom Lengths?

Ans

Yes, customization is supported based on requirements, but there is an MOQ (Minimum Order Quantity) restriction.

Q199

【Product】What Are the Available Models of Leoch Lead-Acid Batteries?

Ans

MEAN WELL offers the DJM series and FT series.

Q200

【Product】What Materials Are Used for Plastic Distribution Boxes?

Ans

ABS, PC, and fiberglass-reinforced plastic (FRP). MEAN WELL uses PC material.

Q201

【Product】What Are the Common Sizes of Plastic Distribution Boxes?

Ans

Sizes typically range from 65x95x55mm to 600x400mm, varying by model.

Q202

【Product】What Are the Common Specifications of Lead-Acid Batteries?

Ans

MEAN WELL provides 12V / 38~150AH models.

Q203

【Product】What Is the Voltage Rating of the Power Cord?

Ans

The voltage rating is 125V or 250V, depending on the product.

Q204

【Product】What Is the Lifespan of a Fan?

Ans

Ball bearing fans have a lifespan of over 50,000 hours, while sleeve bearing fans have a slightly shorter lifespan.

Q205

【Product】Is a Customized Rack Available?

Ans

Custom racks require further discussion with the sales team(LINK).

Q206

【Product】How to Choose the Right Sensor?

Ans

Select based on detection distance, target material, and environmental conditions.

Q207

【Product】Do Sensors Support Multiple Output Modes?

Ans

All models support 4 in 1 output (NPN NO/NC, PNP NP/NC)

Q208

【Product】What Is the Rack Enclosure Material?

Ans

It is made of SPCC cold-rolled steel.

Q209

【Product】What Is the Voltage Range of the Fans?

Ans

DC: 5V, 12V, 24V
AC: 110V, 220V, 380V

Q210

【Product】Do You Provide Eco-Friendly Power Cords?

Ans

Yes, all models comply with ROHS, REACH, and other environmental standards.

Q211

【Product】Do You Offer Gel-Type Lead-Acid Batteries?

Ans

If needed, please inquire (LINK) separately. They are suitable for energy storage and harsh environments.

Q212

【Product】What Is the Protection Rating of Plastic Distribution Boxes?

Ans

Common ratings include IP54, IP65, IP66, and IP67. MEAN WELL's plastic boxes are IP66-rated.

Q213

【Product】Do Plastic Distribution Boxes Support Modular Installation?

Ans

Yes, they are compatible with standardized electrical components.

Q214

【Product】What Is the Casing Material of the Battery?

Ans

It is usually made of corrosion-resistant plastic or metal.

Q215

【Product】Does the Power Cord Comply With International Certifications?

Ans

Please refer to the AC Power Cord Selection Guide (LINK). Depending on the cable type, it complies with CE, UL, CCC, and other international certifications.

Q216

【Product】Are Waterproof Fans Available?

Ans

Additional inquiry is required (LINK). Common waterproof ratings include IP54 and IP65.

Q217

【Product】How Many Equipment Slots Are Inside a Standard Rack?

Ans

Each U is approximately 1.75 inches. For example, a 42U rack can accommodate 42 units of 1U equipment.

Q218

【Product】How Fast Is the Sensor Response Time?

Ans

The response time is 300~600Hz.

Q219

【Product】What Is the Power Consumption of the Sensor?

Ans

Typically low-power design, suitable for long-term stable operation.

Q220

【Product】Does the Rack Come with Wheels?

Ans

Yes, it is equipped with lockable caster wheels and leveling screws.

Q221

【Product】What Is the Noise Level of the Fans?

Ans

Typically 20-50 dB, depending on speed and design.

Q222

【Product】What Is the Maximum Power Rating of the Power Cord?

Ans

Depending on the model, it supports 650W to 2500W.

Q223

【Product】What Is the Energy Density of the Battery?

Ans

The energy density of a lead-acid battery is approximately 30-50 Wh/kg.

Q224

【Product】Are Plastic Distribution Boxes UV-Resistant?

Ans

PC material plastic boxes are UV-resistant, making them suitable for outdoor use.

Q225

【Product】Are Plastic Distribution Boxes Easy to Drill for Customization?

Ans

Yes, the flexible material allows for easy custom drilling.

Q226

【Product】Do You Offer Special-Purpose Batteries?

Ans

If needed, please inquire separately (LINE). We offer military, medical, and specialized industrial batteries.

Q227

【Product】Are There Silent Fans Available?

Ans

Yes, specially designed for low-noise applications.

Q228

【Product】Does the Rack Support UPS Installation?

Ans

The rack has a depth of 750mm, so the appropriate UPS depth must be selected.

Q229

【Product】Are Sensors Compatible with Third-party Devices?

Ans

Yes, most sensors support standard protocols and have high compatibility.

Q230

【Product】Do Sensors Have Electromagnetic Interference (EMI) Protection?

Ans

Yes, the sensors have full EMI protection and they are suitable for environments with high electromagnetic interference.

Q231

【Product】What Is the Standard Color of the Rack?

Ans

Light gray.

Q232

【Product】Do You Offer Custom Fan Service?

Ans

Yes, for customized service, please contact us (LINK). customization is available based on size, voltage, and airflow requirements, but there is an MOQ (Minimum Order Quantity) limitation.
 

Q233

【Product】Do You Offer Portable Lead-Acid Batteries?

Ans

If needed, please inquire (LINK) separately. These are suitable for mobile devices and small power applications.

Q234

【Product】Do Plastic Distribution Boxes Provide Dust Protection?

Ans

Yes, IP66 rating includes waterproof and dustproof protection.

Q235

【Product】What Materials Are Used for Metal Distribution Boxes?

Ans

Cold-rolled steel plates are commonly used. For stainless steel options, additional inquiries are needed.

Q236

【Product】Does the Battery Support Fast Charging?

Ans

Yes, it supports fast charging, but a dedicated fast charger is required.

Q237

【Product】How Much Does a Fan Weigh?

Ans

Typically between 200g and 800g, depending on the model.

Q238

【Product】What Is the Maximum Load Capacity of the Rack?

Ans

The maximum load capacity is 1000 kg.

Q239

【Product】What Is the Voltage Range of the Sensors?

Ans

The voltage range is DC 10-30V.

Q240

【Product】What Materials Are Used for Terminal Blocks?

Ans

Plastic, metal (copper, iron, aluminum, etc.), or alloy.

Q241

【Product】What Is the Maximum Fan Speed?

Ans

Usually between 2550 to 15,000 RPM, depending on the model.

Q242

【Product】How Much Does a Battery Weigh?

Ans

Depending on the model, the weight ranges from 12.7 to 44.2 kg.

Q243

【Product】What Surface Treatment Is Applied to Metal Distribution Boxes?

Ans

It is coated with RAL7035 outdoor powder coating

Q244

【Product】What Is the Thickness of the Metal Distribution Box?

Ans

Door: 1.2 mm
Box: 1.2 mm
Mounting Plate: 1.5 mm 
For heights above 800 mm: Box and door are 1.5 mm, bottom plate is 2 mm.

Q245

【Product】Does the Battery Have an Explosion-Proof Design?

Ans

All sealed lead-acid batteries are equipped with safety valves for explosion protection.

Q246

【Product】Do the Products Comply with International Standard?

Ans

Please refer to the  Selection Guides: AC Fan (LINK)and DC Fan (LINK). Compliance varies by model, meeting standards such as CE, UL, TUV, and ROHS.
 

Q247

【Product】What Are the Standard Specifications for Terminal Blocks?

Ans

DIN standard, UL certification, etc.

Q248

【Product】What Is the Operating Temperature Range for Terminal Blocks?

Ans

Typically -40°C to 105°C.

Q249

【Product】Do the Fans Have Different Bearing Options?

Ans

MEAN WELL fans use ball bearings.

Q250

【Product】Does the Battery Comply with International Standards?

Ans

Please refer to the news (LINK),  all models meet CE, UL and other international certifications.

Q251

【Product】What Is the Protection Rating of Metal Distribution Boxes?

Ans

Common ratings include IP55, IP65, IP66, and IP67. MEAN WELL's metal boxes are IP66-rated.

Q252

【Product】Do Metal Distribution Boxes Support Bulk Customization?

Ans

Yes, different sizes and internal structures can be customized based on requirements, subject to MOQ (Minimum Order Quantity) restrictions.

Q253

【Product】Do You Offer Customization Services?

Ans

If needed, please inquire (LINK) separately. We provide custom battery sizes and specifications.

Q254

【Product】What Are the Installation Methods for the Fans?

Ans

Supports screw mounting.

Q255

【Product】Do Terminal Blocks Support Multi-Layer Structures?

Ans

Yes, the multi-layer terminal blocks help free up more space.

Q256

【Product】What Is the Protection Rating of Terminal Blocks?

Ans

DIN rail terminal blocks do not have specific protection ratings since they are installed inside equipment.

Q257

【Product】What Materials Are Used for the Fan Housing?

Ans

Common materials include plastic or metal (e.g., aluminum alloy).

Q258

【Product】Are Modular Terminal Blocks Available?

Ans

Yes, modular terminal blocks are available for flexible installation.

Q259

【Product】What Is the Wiring Range for Terminal Blocks?

Ans

Typically from 1.5 mm² to 16 mm².

Q260

【Product】Do Terminal Blocks Support DIN Rail Installation?

Ans

Yes, all terminal blocks comply with DIN rail standards.

Q261

【Product】What Are the Common Materials Used for Switches?

Ans

Plastic, copper, iron, stainless steel, aluminum, silver.

Q262

【Product】What Is the Rated Voltage Range for Switches?

Ans

Varies by model; please refer to the industrial switch in the index of product catalog (LINK), click on the part no. and you will find the related information.

Q263

【Product】What Is the Rated Current Range for Switches?

Ans

Varies by model; please refer to the industrial switch in the index of product catalog (LINK), click on the part no. and you will find the related information.

Q264

【Product】Do Switches Support Multi-Color Indicator Lights?

Ans

No, each switch light only supports a single color.

Q265

【Product】Are There Switches with Anti-Vibration Designs?

Ans

Yes, some switches pass vibration tests, with spring-loaded clip wiring being more effective.

Q266

【Product】What Are the Installation Methods for Switches?

Ans

Panel-mounted, embedded, or DIN rail-mounted.

Q267

【After-Sales】What Are Common Causes of Sensor Failures?

Ans

Electromagnetic interference, poor wiring, or unsuitable environmental conditions.

Q268

【After-Sales】Are Additional Accessories Available?

Ans

Yes, support brackets, mounting plates, ventilation panels, and blank panels are available for purchase.

Q269

【After-Sales】How Long Is the Warranty for Fans?

Ans

The warranty period is typically 2 years.

Q270

【After-Sales】Can the Damaged Products Be Replaced?

Ans

Yes, products that meet warranty conditions can be replaced free of charge.

Q271

【After-Sales】How Long Is the Warranty for Lead-Acid Batteries?

Ans

The warranty period is 3 years.

Q272

【After-Sales】Do You Provide Accessories for the Distribution Box?

Ans

Yes, we offer standard accessories such as screws and sealing strips.

Q273

【After-Sales】Have The Distribution Boxes Passed The Waterproof Performance Test?

Ans

Yes, the products have passed IP66 waterproof and dustproof testing.

Q274

【After-Sales】Do Lead-Acid Batteries Come with Installation Support?

Ans

Yes, an installation manual is provided, and some models support on-site installation services.

Q275

【After-Sales】How Can I Check for Power Cord Faults?

Ans

We provide simple testing methods or technical support services

Q276

【After-Sales】Is Installation Guidance Provided?

Ans

Yes, an installation manual is provided, and some brands offer technical support.

Q277

【After-Sales】How Should Transportation Damage to the Rack Be Handled?

Ans

Please contact our distributors or sales team and provide relevant proof for processing.

Q278

【After-Sales】How Long Is the Warranty for Terminal Blocks and Switches?

Ans

Contact the distributor or sales representative for details.

Q279

【After-Sales】Are Installation Accessories Provided?

Ans

Accessories need to be purchased separately.

Q280

【After-Sales】Can Damaged Fans Be Repaired?

Ans

It depends on the extent of the damage, but most fans are replaced rather than repaired.

Q281

【After-Sales】Do You Provide Product Certifications for the AC Power Cords?

Ans

Yes, we offer CE, UL, ROHS, and other relevant certification documents, which you may download from the Quick Selection Guide (LINK).

Q282

【After-Sales】How to Handle Power Cords Damaged During Transportation?

Ans

You can apply for a replacement after providing proof of damage.

Q283

【After-Sales】How Can I Address Excessive Noise Issues?

Ans

Please contact after-sales support (E-mail:info-pnpt@powernex.com ) to check for bearing damage or improper installation.

Q284

【After-Sales】Are Samples Available for Testing?

Ans

Contact the distributor or sales representative for sample testing.

Q285

【After-Sales】How Can I Check the Product Model and Specifications?

Ans

You can check via the product serial number or the official website→Product→AC Fan (LINK) and DC Fan (LINK) Selection Guides.

Q286

【After-Sales】Do You Offer Sample Testing Services for the AC Power Cords?

Ans

Yes, we provide sample testing to help customers verify product performance.

Q287

【After-Sales】How Can I Obtain the Product Manual?

Ans

You can download it from the official website→Product→Selection Guide (LINK) or request it from Online Service (LINK).

Q288

【After-Sales】How Can I Resolve Abnormal Fan Speed Issues?

Ans

Please contact technical support(E-mail: info-pnpt@powernex.com) to check for voltage issues or control signal problems.

Q289

【After-Sales】Do You Provide Multilingual Technical Support?

Ans

Yes, we provide multilingual support to meet the needs of international customers.