Electronic Circuit Breakers

Primary switch mode power supplies provide a very fast response to overcurrent conditions on the output side, allowing for an extended operating life. Selective protection of individual current paths on the secondary side via standard circuit breakers is often ineffective when top boost function is not available for high-speed magnetic tripping, unlike for PRO Power Supplies.

Electronic circuit breakers provide selective protection for power supplies without top boost feature. Up to four current paths can be protected via 4 channels and easily adjustable rated current. The short-circuit current is limited using an active current limiting circuit breaker, preventing voltage drop across adjacent current paths. In addition to parameter setting, the display and serial interface control both the integrated fault memory and the instantaneous values of the output current and voltage. Hence, not only proactive monitoring and fault diagnostics, but also energy monitoring can be performed.