What it is and where it fits
The ABB 1SDA062092R1 is an undervoltage release (UVR) for ABB SACE air circuit breakers. It trips the breaker when supply voltage drops below a set threshold, protecting downstream equipment from brownout conditions. This is a panel-mounted accessory that integrates into the breaker's shunt-trip mechanism. Rated for continuous duty inside the breaker compartment. The release coil draws power from the control circuit and holds the breaker closed under normal voltage; on undervoltage, it releases the latch mechanically. No auxiliary power supply needed beyond the control voltage.
Sourcing and lifecycle
ABB has not issued a PCN or EOL notice for this order code as of the latest data. No direct successor has been announced; the part continues as the standard UVR option for SACE breaker frames.