Siemens AG 3VF9222-1DC10 IEC Auxiliary Switch

Siemens 3VF9222-1DC10 IEC Auxiliary Switch is an alarm/bell auxiliary contact accessory for Siemens 3VF2 circuit-breakers, providing an additional signaling contact in IEC-compliant form to monitor breaker status and trigger external signaling or control circuitry. The model designation 3VF9222-1DC10 denotes its integrated alarm/bell signaling capability paired with an auxiliary contact for 3VF2 devices. Typical applications include remote status indication, fault and alarm signaling, and interlocking within switchgear, motor control centers, and automation panels where compact signaling contacts are required alongside the primary switching function.