1SCA022353R4970

The ABB OA1G10 (1SCA022353R4970) is a 1 Normally Open (1 NO) auxiliary contact designed for ABB OT switch-disconnectors and OTM motorized/automatic transfer switches. It is used for position indication, status feedback, signaling, interlocking, and control-circuit functions. ABB specifies right-side mounting, with up to two auxiliary contacts per side for applicable OTM configurations.