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MCCB Short-Time Delay Trip Test Bench(1).jpg

MCCB Short-Time Delay Trip Test Bench - Reliable Testing Solutions from China Suppliers & Factory

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The MCCB Short-Time Delay Trip Test Bench is engineered to evaluate the short-time delay (S) protection characteristics of molded case circuit breakers (MCCB). This testing solution accurately verifies tripping behavior under high current conditions with a specified delay, ensuring compliance with IEC 60947-2 standards. As a leading supplier from China, we prioritize quality and reliability in our factory-produced test benches.

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✅ Accurate short-time delay simulation for seamless performance

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✅ High repeatability and stability to meet industry standards

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✅ Flexible compatibility with various MCCB models

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✅ Robust industrial-grade design for durability and efficiency

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    Product Detail

    Equipment Overview

    The MCCB Short-Time Delay Trip Test Bench is a professional testing system used to evaluate the short-time delay protection function of Molded Case Circuit Breakers (MCCB).
    Short-time delay protection plays a critical role in coordinating protection between downstream and upstream circuit breakers by allowing high current to flow for a limited time before tripping.

    This test bench simulates high-magnitude fault currents with adjustable delay time, enabling precise verification of MCCB tripping behavior under short-time protection settings. The system allows accurate control of test current level, delay time, and test sequence, ensuring reliable and repeatable results.

    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 3-60 kVA per test station
    Maximum Output Current Up to 20000 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:

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    1-Year Free Warranty Covers all non-human damages. Replacement and repair included.
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    Lifetime Maintenance Support We offer lifelong technical assistance and spare parts supply.
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    On-Site Installation & Commissioning Professional engineers are available to visit your site for setup.
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    Operator Training On-site or remote training to ensure your team can run the machine independently.
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    Remote Technical Support Quick response via video call, remote control, Email, WhatsApp, and WeChat.

    Why Choose This Test Bench

    Ensures consistent and repeatable test results
    Improves testing efficiency and reduces manual errors
    Supports multiple MCB ratings and curve types (B / C / D)
    Suitable for mass production environments

    Why Choose TF Automation

    🏭 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
    MCB Instantaneous Test Bench
    MCCB Magnetic Trip Test Bench
    Thermal Relay Delay Characteristic Test Bench

    Frequently Asked Questions

    • Q1 What is short-time delay protection in MCCB?
      A Short-time delay protection allows the MCCB to withstand high current for a short period before tripping, enabling coordination with downstream protection devices.
    • Q2 Which MCCBs can be tested with this bench?
      A The test bench supports MCCBs with LS or LSI protection units, covering different rated currents and frame sizes.
    • Q3 Can the test parameters be customized?
      A Yes. Test current, delay time, and test sequence can be adjusted according to MCCB specifications.
    • Q4 How much does the MCCB Short-Time Delay Trip Test Bench cost?
      A The price depends on current range, delay settings, and configuration options. Please contact us for a customized quotation.
    • Q5 What safety features are built into the test bench?
      A The system integrates multiple safety protections including overload, over-temperature, and short-circuit protection to ensure safe and reliable operation throughout testing.
    • Q6 Does TF Automation provide on-site installation and training support?
      A Yes. Professional engineers are available for on-site installation and commissioning, and both on-site and remote operator training are provided to ensure your team can operate the equipment independently.

    Talk to our team today

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

    contact us