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

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RS Stock No.:
124-8921
Distrelec Article No.:
303-97-111
Mfr. Part No.:
8WD4420-0EA
Brand:
Siemens
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Brand

Siemens

Supply Voltage

24 V dc

IP Rating

IP65

Decibels at 1 Metre

95 → 105dB

Current Type

DC

Number Of Tones

2

Housing Colour

Black

Diameter

70.5 mm

Application Type

Siren

Minimum Decibel

95dB

Maximum Decibel

105dB

Series

SIRIUS

Tone Type

Alternating

Standards Met

CE

Maximum Temperature

+50°C

Special Features

Advanced Design, Improved Illumination, Thermoplast Enclosure

Minimum Temperature

-20°C

Housing Material

Polycarbonate

COO (Country of Origin):
DE

Siemens SIRIUS Series Buzzer, 24V DC Supply Voltage, DC Current - 8WD4420-0EA


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.

Features & Benefits


• 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

Applications


• 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

How is the acoustic signal adjusted for different applications?


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

What are the installation requirements for this device?


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

Can this device operate in extreme temperatures?


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

What type of current is suitable for its operation?


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

How long can I expect the service life of the acoustic device to be?


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

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