EPSITRON® 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 TopBoost function is unavailable for high-speed magnetic tripping, unlike for PRO Power Supplies.
Electronic circuit breakers provide selective protection for power supplies without TopBoost feature. Up to four current paths can be protected via 4 channels and an easy-to-adjust rated current. The short-circuit current is limited via 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. This provides proactive monitoring, fault diagnostics and energy monitoring.
EPSITRON® Electronic Circuit Breakers
- LCD and function keys
- Connection via connectors equipped with CAGE CLAMP®
- Rugged metal housing
- Integrated serial interface
- LED status indication
- Configurable isolated signal contact
- Remote control input (787-860 and 787-862)
- 4 active signal outputs for watchdog functions
- 4 current channels with adjustable rated current
- Adjustable tripping time, delayed switching-in of channels
- Active short-circuit current limitation (787-861)
- Mounts easily on DIN carrier rail
- Configuration via display or software

















