DBF Digital Breaker Failure - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 8 Series and UR Family relays.
Manufacturing for this product has been discontinued. As an alternative, please refer to the 8 Series and UR Family relays
The DBF is a digital breaker failure relay that provides phase and ground backup protection if the primary circuit breaker fails to clear a system fault.
Protection & Control
- Two step instantaneous and/or time delayed breaker failure
- Phase instantaneous overcurrent
- Ground instantaneous overcurrent
- Three phase direct trip
- Internal arcing protection
- Operation failure detection
- Three settings groups
- 14 configurable inputs
Monitoring & Metering
- Current metering
- Breaker health monitoring
- Event recorder, last 165 events
DBF Digital Breaker Failure - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 8 Series and UR Family relays.
Manufacturing for this product has been discontinued. As an alternative, please refer to the 8 Series and UR Family relays
The DBF is a digital breaker failure relay that provides phase and ground backup protection if the primary circuit breaker fails to clear a system fault.
Protection & Control
- Two step instantaneous and/or time delayed breaker failure
- Phase instantaneous overcurrent
- Ground instantaneous overcurrent
- Three phase direct trip
- Internal arcing protection
- Operation failure detection
- Three settings groups
- 14 configurable inputs
Monitoring & Metering
- Current metering
- Breaker health monitoring
- Event recorder, last 165 events