LISUN Circuit Breaker Tripping Test System
LISUN Circuit Breaker Tripping Characteristics Comprehensive Test System — tests thermal-magnetic and electronic circuit breaker tripping characteristics per IEC 60898, IEC 60947-2.
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Overview
The LS-B60 Circuit Breaker Tripping Characteristic Testing System is a professional device for circuit breaker performance testing, using PLC intelligent integrated control and a touchscreen human-machine interface. The equipment combines a test chamber and testing machine with built-in delay and instantaneous test stations, wired via terminals to meet 1-4P circuit breaker testing needs. Chamber temperature can be controlled from room temperature to 50 degrees C for stable, safe testing conditions.
The system performs time-delay tripping tests (1.13x, 1.45x, 2.55x rated current), instantaneous tripping tests (3-10x rated current), and temperature rise tests, automatically adjusting output current to verify circuit breaker performance under different operating conditions.
Key Specifications
Time-delay tripping: AC10-350A output, test sample range 3-125A, Class 0.5 accuracy | Instantaneous tripping: AC100-1500A output, test time under 0.2s | Temperature rise: 12 channels, 0-200C range, T-type thermocouple, Class 0.2 accuracy | Control: PLC with touchscreen HMI
Features
- Time-delay, instantaneous, and temperature rise tripping tests in one system
- Tests 1-4P circuit breakers via terminal-mode fixture
- Automatic current adjustment via touchscreen
- Built-in temperature control chamber (room temp to 50C)
Applications
MCB and MCCB factory-gate quality inspection; Circuit breaker R&D performance verification; Third-party circuit breaker tripping characteristic testing; Power engineering circuit breaker selection evaluation