China Dielectric Strength Tester Manufacturers Factory - Dielectric Strength Tester in Stock

Your Professional Dielectric Strength Tester Supplier

Founded in 1992 and formally incorporated as Wuhan Moen Intelligent Electrical Co., Ltd. on November 12, 2012, with a registered capital of RMB 36 million, we are a professional technology company specializing in the research, development, and production of high-voltage test equipment. Our 8,000 m² facility in Wuhan East Lake High-Tech Development Zone houses dedicated production lines, R&D centers, and administrative facilities. With an experienced technical and production team, Moen focuses on core products including test transformers, series resonance systems, and other high-voltage testing equipment. Backed by years of industry experience, the company is committed to reliable manufacturing, continuous technical improvement, and providing practical solutions for global power utility and industrial customers.

Programmable Voltage Tester
The MOEORW-WNYC series programmable withstand voltage tester is a high-performance electrical strength testing instrument, suitable for rapid testing on production lines and high-precision testing in

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AC Hipot Safety Testing 5kV
The MOEORW-W2300A 5kV AC hipot tester is engineered for single alternating current dielectric strength testing. It meets mainstream safety standards for daily insulation detection, featuring stable

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AC DC Hipot Safety Testing
MOEORW-W2300D Integrated AC and DC hipot testing in one device, this dual-purpose dielectric strength tester supports flexible voltage switching. Ideal for complex insulation detection, high voltage

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Comprehensive Safety Compliance Tester
The MOEORW -WNYK portable withstand voltage tester features 1% safety compliance accuracy, supports 5000V high voltage output, switches between test items in just 0.1s, and can perform multi-item

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Why choose us

Our Certificate
We are certified in ISO 9001 (Quality), ISO 45001 (Health & Safety), and ISO 14001 (Environment), ensuring high standards in all aspects of our operations.

Strong R&D Capability
Committed to technological breakthroughs, including investments to develop 750kV reactor solutions.

Experienced Technical Team
A growing team of 61 employees supporting product development, production, and customer service.

Complete Pre & After-Sales Service
From solution design and technical support to installation, maintenance, and fast response service.

Comprehensive Safety Compliance Tester

The portable withstand voltage tester consists of a high-voltage boosting circuit (capable of adjusting the output to the required test voltage), a leakage current detection circuit (capable of setting an alarm threshold), and an indicator panel (for directly displaying the output voltage and leakage current values—or the breakdown alarm current value). (See Figure 1.) During testing, once the test specimen has been subjected to the specified test voltage for the prescribed duration, the instrument automatically cuts off the output voltage. Furthermore, should a breakdown occur—specifically, if the leakage current exceeds the preset alarm threshold—the device will trigger both audible and visual alarms.

AC withstand voltage test
	Scope	Resolution	Accuracy
Output voltage	300～5000VAC	1V	±(1% of reading +5V)
Output frequency	50/60Hz
Breakdown current	0～100.00mA Short-term 200mA peak	0.001mA/0.01mA	±(1% + 0.002mA)
Gradual rise time	0～999.9s	0.1s	±(1% + 0.1s)
Descent time	0～999.9s	0.1s	±(1% + 0.1s)
Test time	0.5～999.9s	0.1s	±(1% + 0.1s)
Current compensation	0～99.999 mA	0.001mA/0.01mA
Arc detection	0～100.00mA	0.01mA	±5%
DC withstand voltage test
	Scope	Resolution	Accuracy
Output voltage	300~6000VDC	1V	±(1% of reading +5V)
Breakdown current	0～9.999mA	0.001mA	±(1% + 0.002mA)
Gradual rise time	0～999.9s	0.1s	±(1% + 0.1s)
Descent time	0～999.9s	0.1s	±(1% + 0.1s)
Test time	0.5～999.9s	0.1s	±(1% + 0.1s)
Insulation resistance test
	Scope	Resolution	Accuracy
Output voltage	100~3000V	1V	±(1% of reading +5V)
Insulation resistance	0.5M~100GΩ	0.01M/0.1M/1M/10M/100M/1G	0.60M~9.99M ±(1% of reading + 0.03M) 10.0MΩ~99.9MΩ ±(3% of reading +0.3MΩ) 100MΩ~9999MΩ ±(5% indication +3M) 10.0GΩ~100GΩ ±(15% reading + 0.8G)
Gradual rise time	0～999.9s	0.1s	±(1% + 0.1s)
Descent time	0～999.9s	0.1s	±(1% + 0.1s)
Test time	0.5～999.9s	0.1s	±(1% + 0.1s)
Delay time	0～999.9s	0.1s	±(1% + 0.1s)
Grounding resistance test
	Scope	Resolution	Accuracy
Output current	1.0~32.0A	0.1A	±(1% of reading + 0.2A)
Output frequency	50/60Hz
Grounding resistance	10~600.0mΩ (voltage not exceeding 12V)	0.1 mΩ	±(1% of reading + 2.0mΩ)
Resistance compensation	0~600.0mΩ	0.1 mΩ	±(1% of reading + 2.0mΩ)
Test time	0.5～999.9s	0.1s	±(1% + 0.1s)
Leakage current test
	Scope	Resolution	Accuracy
Output voltage	30.0～300.0V	0.1V	±(0.2% of reading + 0.5V)
Output current	0～2.000/30.000A	0.001A	±(0.2% + 0.005A)
Leakage current	0.0050～12.000mA	0.0001/0.001 mA	±(1% + 3uA)
Test time	1.0～999.9s	0.1s	±(1% + 0.1s)
Human body network	Six types are standard, with optional US standard medical equipment.
Current compensation	0.0050～12.000mA	0.0001/0.001 mA	±(1% + 3uA)
Power test
	Scope	Resolution	Accuracy
Voltage	30.0～300.0V	0.1V	±(0.2% of reading + 0.5V)
Current	0～2.000/30.000A	0.001A	±(0.2% + 0.005A)
Power	0～500W/9000W	0.1W	0～99.9W ±(0.3% + 0.3W) >99.9W ±(0.3% + 4.0W)
Test time	0.5～999.9s	0.1s	±(1% + 0.1s)
Low-voltage start-up test
	Scope	Resolution	Accuracy
Voltage	30.0～300.0V	0.1V	±(0.2% of reading + 0.5V)
Current	0～2.000/30.000A	0.001A	±(0.2% + 0.005A)
Power	0～500W/9000W	0.1W	0～99.9W ±(0.3% + 0.3W) >99.9W ±(0.3% + 4.0W)
Test time	0.5～999.9s	0.1s	±(1% + 0.1s)
Parallel testing
Optional	Grounding + withstand voltage + power (cabinet type)
Built-in power supply
Built-in power supply	0.5KVA/3KVA/6KVA
Isolation transformer	6KVA

Features of Comprehensive Safety Compliance Tester

Preventing Leakage Current: High-resistance materials minimize unwanted current flow between conductive parts, ensuring that the applied test voltage is accurately delivered to the device under test.

Protecting Users: They act as barriers against electric shock by isolating high-voltage sections from user-accessible areas, complying with safety standards like double insulation (Class II).

Maintaining Signal Integrity: By reducing parasitic capacitance and crosstalk, quality insulation supports precise measurements and repeatable results.

Resisting Environmental Degradation: Premium materials resist tracking, cracking, and moisture absorption over time, even under repeated high-voltage stress.

Supporting Long-Term Reliability: Durable insulation extends the service life of the tester and reduces the risk of internal failures during critical tests.

Type of Comprehensive Safety Compliance Tester

Manual Voltage Withstand Tester

Designed for hands-on operation, manual testers require user input to set voltage levels, initiate tests, and monitor results. Ideal for low-volume or specialized applications where customization is key.

Automatic Voltage Withstand Tester

These advanced testers automate the entire testing sequence—voltage application, measurement, pass/fail evaluation, and data logging—ensuring consistent, repeatable results with minimal operator intervention.

Integrated Voltage Withstand Tester

These multifunctional units combine voltage withstand testing with additional capabilities such as insulation resistance, continuity, ground bond, and leakage current testing—all in one device.

Applications of Comprehensive Safety Compliance Tester

Electrical Contracting

Electrical contractors use voltage withstand testers to verify the integrity of insulation in wiring systems, ensuring safety and regulatory compliance before energizing new installations.

Manufacturing

In manufacturing environments, voltage withstand testing is integrated into quality assurance protocols to validate the safety and durability of electrical products and industrial machinery.

Telecommunications

The telecom industry depends on voltage withstand testing to maintain signal integrity and protect infrastructure from electrical faults, especially in hybrid fiber-coaxial and outdoor transmission systems.

Aerospace and Defence

Given the mission-critical nature of aerospace and defence systems, voltage withstand testing is mandatory for ensuring reliability under extreme conditions such as vibration, temperature fluctuations, and high-altitude operation.

How does one choose the Comprehensive Safety Compliance Tester

Test Voltage Range

Choose a model that supports the required output voltage (e.g., 500V, 1kV, 5kV, or higher) based on your application—low-voltage electronics vs. industrial power systems.

AC/DC Testing Capability

Some applications require AC voltage testing (simulating real-world conditions), while others need DC for sensitive components. Ensure the tester supports the correct mode.

Leakage Current Limits

Adjustable current trip settings allow customization for different insulation classes and prevent false failures.

Environmental Conditions

For field use, consider ruggedized models with dust/water resistance (IP ratings) and wide operating temperature ranges.

Budget & Maintenance

Balance upfront costs with long-term reliability, calibration requirements, available support, and spare parts. Higher-end models often offer better accuracy, data logging, and safety features.

Compliance Standards

Verify that the tester meets relevant industry standards for your region and application (e.g., CE, CAT III/IV ratings).

Environmental Conditions and Durability

Durability & Build Quality

Opt for testers with rugged, impact-resistant casings made from reinforced polymers or metal alloys. These protect internal circuitry from drops, vibrations, and rough handling during field inspections or mobile maintenance operations.

Ingress Protection (IP Rating)

For outdoor or dusty environments, select testers with at least IP54 protection (dust-protected and splash-resistant). In harsher conditions (e.g., rain, humidity), IP67-rated devices offer full dust tightness and temporary water immersion resistance.

Climate Tolerance

Ensure the device operates reliably across the expected temperature range. Industrial-grade testers typically function between -10°C to +50°C, but specialized units are available for extreme cold or desert heat.

Precautions

01/

Personal Protective Equipment (PPE): Always wear insulated gloves, safety goggles, and flame-resistant clothing rated for electrical work.

02/

Safe Operating Distance: Use remote controls or interlocks to operate the tester from a safe distance, especially during high-voltage application.

03/

Proper Grounding: Ensure both the device under test and the tester itself are correctly grounded to prevent accidental discharge and protect operators.

04/

Lockout/Tagout (LOTO): De-energize and isolate the equipment being tested to avoid accidental energization during testing.

05/

Environmental Conditions: Avoid use in wet, humid, or explosive environments unless the tester is specifically designed and certified for such conditions.

06/

Training: Only qualified personnel trained in high-voltage safety procedures should conduct or supervise these tests.

Certificates

FAQ

Q: How can I choose the suitable one?

A: Dear customer, please tell us your detailed requirements by mail or online, we will recommend the suitable one as your request.

Q: What is the mini order quantity?

A: MOQ: generally 1 unit/piece/set

Q: How can I pay?

A: Dear customer, we accept many payment term, such as T/T, Western Union...

Q: Is will be broken during transport?

A: Dear customer, please do not worry, we do standard export package.

Q: What should I do if I do not know how to use?

A: Dear customer, please do not worry, manual user will be sent together, you can also contact us with more technological support.

As one of the most professional dielectric strength tester manufacturers in China, we're featured by quality products and good price. Please rest assured to buy high quality dielectric strength tester in stock here and get quotation from our factory. Customized orders are welcome.

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