Sounder 12DC nickel-plated ring ST22-SD-12DC. ST22-SD-12DC\.

Audible indicator – reliable notifications in control systems

The ST22-SD-12DC audible indicator is a signaling element, ideal for mounting in control and signaling systems. It complements control buttons and indicator lights, providing a clear acoustic signal at a level of 80 dB. It will be useful wherever effective notification of a change in device status or an event occurrence is needed.

Construction and operating parameters

The indicator housing is made of durable materials, and the ring has a nickel-plated finish. The device is designed to be powered by 12 DC voltage, consuming only 3 mA of current. This minimizes the load on the power supply and ensures long-term operation. Connection wires can be connected using a PS10 terminal block, using solid wires with a cross-section of 1…2.5 mm² or stranded wires with a cross-section of 0.75…1.5 mm². The sound signal generated by the indicator has a carrier frequency in the range of 4…5 kHz.

Application and protection

The ST22-SD-12DC indicator is primarily used in acoustic signaling systems in industry, building automation and other applications requiring a clear warning or information signal. The IP30 degree of protection provides basic protection against touching and ingress of solid objects, making it suitable for operation in environments with moderate exposure to contamination.