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China MCCB Short-Time Delay Trip Test Bench - Reliable Test Solution from Leading Suppliers & Factory
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 SystemEquipped with an advanced control system and intuitive operation panel, allowing flexible setting of fault modes, test current, and delay time parameters.
- Power Supply SystemProvides stable and adjustable voltage and current output to meet the testing requirements of different types and ratings of circuit breakers.
- Fault Simulation SystemSimulates various fault conditions, including overload, short circuit, and grounding, with precise control of fault current and delay time.
- Data Recording SystemAutomatically 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 SystemIntegrated 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 WarrantyCovers all non-human damages. Replacement and repair included.
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Lifetime Maintenance SupportWe offer lifelong technical assistance and spare parts supply.
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On-Site Installation & CommissioningProfessional engineers are available to visit your site for setup.
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Operator TrainingOn-site or remote training to ensure your team can run the machine independently.
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Remote Technical SupportQuick response via video call, remote control, Email, WhatsApp, and WeChat.
Why Choose This Test Bench
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Ensures consistent and repeatable test results
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Improves testing efficiency and reduces manual errors
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Supports multiple MCB ratings and curve types (B / C / D)
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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
Q&A
Q1What is short-time delay protection in MCCB?
Short-time delay protection allows the MCCB to withstand high current for a short period before tripping, enabling coordination with downstream protection devices.
Q2Which MCCBs can be tested with this bench?
The test bench supports MCCBs with LS or LSI protection units, covering different rated currents and frame sizes.
Q3Can the test parameters be customized?
Yes. Test current, delay time, and test sequence can be adjusted according to MCCB specifications.
Q4How much does the MCCB Short-Time Delay Trip Test Bench cost?
The price depends on current range, delay settings, and configuration options. Please contact us for a customized quotation.
Frequently Asked Questions (FAQ)
FAQ 1What standards does the MCCB Short-Time Delay Trip Test Bench comply with?
The test bench is designed to comply with IEC 60947-2 and relevant international standards for low-voltage circuit breaker testing, ensuring your test results are globally recognized and traceable.
FAQ 2What is the maximum test current the bench can produce?
The system supports a maximum output current of up to 20,000 A per test station. Higher configurations are available upon request based on specific testing requirements.
FAQ 3How long does installation and commissioning typically take?
On-site installation and commissioning typically take 1–3 business days depending on the system configuration and site conditions. Our professional engineers will handle the entire setup process.
FAQ 4Can this test bench be integrated into an automated production line?
Yes. The test bench supports integration with automated production lines and can be configured with PLC control and communication interfaces to suit mass production environments.
FAQ 5What data output formats are available for test records?
The data recording system can export test results in standard formats including Excel and PDF, providing clear and traceable documentation for quality control and certification purposes.
FAQ 6Is remote technical support available after purchase?
Yes. We provide comprehensive remote technical support via video call, remote desktop control, Email, WhatsApp, and WeChat, ensuring fast response and minimal downtime for your operations.
Talk to our team today
Interested in this machine? Get technical details, layout drawings, or a customized quote today!