This standard specifies a method of verifying the performance of circuit breakers with a locked tripping system. It shall be used together with EN 3841-100. The test is intended to estimate the consequences of a trip failure in the case of a short-circuit.
DS/EN 3841-307:2005 history
2005DS/EN 3841-307:2005 Aerospace series - Circuit breakers - Test methods - Part 307: Performance with a locked tripping system