The ABB S800-SOR250 is a shunt release designed for the S800 series of molded-case circuit breakers. Its job is to trip the breaker remotely — via a control signal, emergency-stop pushbutton, or protection relay — without requiring an operator at the panel face. That makes it the piece that connects a safety circuit or a remote trip command to the breaker's mechanical trip mechanism.
The S800-SOR250 carries a current lifecycle stage, meaning it remains in ABB's active product portfolio.