Siemens SIRIUS Series Buzzer, 24 V dc, 95 → 105dB at 1 m, IP65, DC, 2-Tone

SIRIUS 8WD4 siren element for modular installation of signalling columns, e.g. for visual and/or acoustic warning devices or for the control of complex processes.

Thanks to the high degree of protection, the rugged devices are suitable for industrial use and are extremely resistant to shocks and vibrations. The secure bayonet mechanism allows easy installation as well as quick replacement of the acoustic elements. Acoustic elements can be adjusted in tone and volume.

In addition to a continuous light, flashlights, blink lights and rotating lights are available in various colours and voltages, as well as buzzers and sirens. They can be supplied with various diameters, optionally also with communication capability through connection to AS-Interface Optimum light distribution is achieved by using several LEDs in one light module.

Feet, pipes, adapters, incandescent lamps, LEDs and pipe adapters are available as accessories.

This buzzer functions as a versatile siren element, appropriate for both 24 V DC and AC applications. With a sturdy construction, it is essential for various industrial alarm systems, providing consistent acoustic signalling in critical situations. Featuring a thermoplastic enclosure, it is designed to endure a range of environmental conditions while ensuring effective performance.

• Adjustable acoustic signal to accommodate specific alert needs
• Continuous and alternating tone options for increased versatility
• Loudness level of 95–105 dB ensures clarity in noisy settings
• IP65 protection class ensures operation in demanding environments
• Low consumption of 40 mA promotes efficient energy use

• Signalling in automated machinery
• Safety alarms in electrical panels
• Alert notifications in security systems
• Warning systems for equipment malfunctions
• Suitable for environments with varying ambient temperatures

The acoustic signal can be adjusted by selecting between continuous and alternating tones, offering flexibility according to specific requirements.

Installation is straightforward, using a bayonet fastening method compatible with standard fixtures.

Yes, it is capable of functioning effectively within a temperature range of -20°C to +50°C.

It operates with both 24 V DC and AC currents, making it notably versatile.

The expected service life is approximately 5000 hours, ensuring sustained performance.