1SFA619600R6216

The ABB 1SFA619600R6216 CB1-621B Compact Buzzer is a reliable industrial audible signalling device designed to provide continuous sound alerts in electrical control panels, industrial machinery, and automation systems. Operating at 110–130V AC, this compact buzzer delivers a steady audible warning to notify operators about equipment faults, abnormal operating conditions, and process alarms.

Part of ABB's Compact Pilot Devices range, the CB1-621B features a black non-illuminated front, an integrated sound-generating mechanism, and a compact design suitable for standard 22 mm panel mounting. Its 40 mA rated current and durable construction make it suitable for industrial control applications requiring dependable audible indication without additional visual illumination.