Phase sequence and loss monitoring in a compact relay
The ABB 1SVR550824R9100 is a phase sequence and loss monitor relay, classified under Phase & Voltage Loss Relays within the General Purpose Relays category. It detects incorrect phase rotation and single-phasing conditions on three-phase supplies, protecting downstream motor loads and control circuits from phase-related faults.
Current production status and sourcing posture
Sourced through independent distribution channels, this relay is quoted to order against a BOM quantity.