MCCB Magnetic Trip Test Bench

Equipment Overview

The MCCB Magnetic Trip Test Bench is a specialized testing system used to evaluate the instantaneous (magnetic) protection performance of Molded Case Circuit Breakers (MCCB).
This test bench simulates high-magnitude short-circuit currents to verify whether the MCCB trips quickly, accurately, and reliably when magnetic protection is triggered.

The system precisely controls test current amplitude, rise time, and triggering conditions, ensuring accurate and repeatable test results. It is suitable for testing MCCBs with different frame sizes, rated currents, and magnetic trip settings, and fully complies with IEC 60947-2  requirements.

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

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.

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

FAQS

Q1: What is the function of an MCCB magnetic trip test bench?

A: It tests the instantaneous magnetic tripping performance of MCCBs by simulating high fault currents, ensuring rapid and reliable short-circuit protection.

Q2: Can it test different MCCB ratings and frame sizes?

A: Yes. The test bench can be customized to support different rated currents, magnetic trip settings, and MCCB frame sizes.

Q3: How accurate is the trip time measurement?

A: The system provides high-accuracy timing measurement with repeatable and stable test results.

Q4: How much does the MCCB Magnetic Trip Test Bench cost?

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