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Motor Protector Circuit Breaker Delay Characteristic Test Bench.jpg

Motor Protector Circuit Breaker Delay Characteristic Test Bench

The Motor Protector Circuit Breaker Delay Characteristic Test Bench is designed to test the time-delay overload protection characteristics of motor protection circuit breakers (MPCB).
It accurately verifies motor overload protection performance in compliance with IEC 60947-2 and IEC 60947-4-1 standards.

✅High-precision delay testing

✅Standards-compliant design

✅Wide MPCB compatibility

✅Stable and repeatable performance

✅User-friendly interface

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    Product Detail

    Equipment Overview

    The Motor Protector Circuit Breaker Delay Characteristic Test Bench is a specialized testing system used to evaluate the delay tripping characteristics of Motor Protection Circuit Breakers (MPCB).
    Motor protectors are widely used to safeguard motors against overload, phase loss, and prolonged abnormal operating conditions, making accurate delay testing essential for reliable motor protection.

    This test bench simulates continuous overload currents and precisely measures the tripping time of MPCBs under defined current multiples. It supports testing across different rated currents, frame sizes, and protection settings, ensuring accurate validation of motor protector performance.

    The system integrates stable current injection, precise timing measurement, and automated data acquisition, ensuring high repeatability and compliance with IEC 60947-2 and IEC 60947-4-1 requirements. It is suitable for production testing, quality control, and certification laboratories.

    System Configuration

    The test bench typically consists of the following systems:

    • Control System
      Equipped with an advanced control system and intuitive operation panel, allowing flexible setting of fault modes, test current, and delay time parameters.
    • Power Supply System
      Provides stable and adjustable voltage and current output to meet the testing requirements of different types and ratings of circuit breakers.
    • Fault Simulation System
      Simulates various fault conditions, including overload, short circuit, and grounding, with precise control of fault current and delay time.
    • Data Recording System
      Automatically records key parameters such as operating time, fault current, and delay cut-off time, generating clear and traceable test data for analysis and evaluation.
    • Safety Protection System
      Integrated with multiple safety protections, including overload, over-temperature, and short-circuit protection, ensuring safe operation during testing.

    Technical Specifications

    Parameter Specification
    Power Supply AC 220V ±10%, 50Hz
    Air Supply Pressure 0.2 – 0.8 MPa
    Rated Power 3-10kVA per test station
    Maximum Output Current Up to 2000 A per station (configurable)
    Time Display Range 1 s – 9 h 59 min 59 s
    Timing Accuracy ±0.1%
    Overall Measurement Accuracy ±1.0%
    Waveform Distortion < 3%
    Insulation Resistance > 10 MΩ

    After-Sales Service & support

    We are committed to long-term cooperation with full technical support:

    ✅1-Year Free Warranty ：Covers all non-human damages. Replacement and repair included.

    ✅Lifetime Maintenance Support：We offer lifelong technical assistance and spare parts supply.

    ✅On-Site Installation & Commissioning：Professional engineers are available to visit your site for setup .

    ✅Operator Training：On-site or remote training to ensure your team can run the machine independently.

    ✅Remote Technical Support：Quick response via video call, remote control, Email, WhatsApp, and WeChat.

    • Specialized in low-voltage electrical automation equipment

    • Extensive experience in low-voltage electrical testing solutions

    • Strong customization capability based on customer standards

    • Reliable technical support and long-term service commitment

    References & Case Studies

    MCB Delay Action Characteristic Test Bench(1)(1)(1).jpg MCB Instantaneous test bench(1).jpg MCCB Magnetic Trip Test Bench.jpg Thermal Relay Delay Characteristic Test Bench.jpg

    Q&A

    Q1: What is a motor protector circuit breaker delay test bench used for?

    A: It is used to verify the overload delay tripping characteristics of motor protection circuit breakers, ensuring reliable motor protection

    under prolonged overload conditions.

    Q2: Can different motor protector current ranges be tested?

    A: Yes. The test bench supports a wide range of rated currents and protection settings.

    Q3: Can test data be exported for quality records?

    A: Yes. All test data can be recorded, stored, and exported for traceability and reporting.

    Q4: How much does the Motor Protector Circuit Breaker Delay Characteristic Test Bench cost?

    A: Pricing depends on current range, protection settings, and customization level. Please contact us for a tailored technical proposal and quotation.

    Talk to our team today

    Interested in this machine? Get technical details, layout drawings, or a customized quote today!

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