This product listing is for the part 42021, manufactured by Sirena, and is a 24 V AC/DC electromechanical industrial siren (Celere series) with IP43 protection providing a high‑level audible warning for industrial and alarm applications..

This product is currently out of stock.

Returns are accepted within 30 days if the item(s) received are not what was ordered or are broken.

Part Specifications:
- Nominal voltage: 24 AC/DC V
- Sound level (at 1 m): 108-109 dB
- Protection rating: IP43 IP
- Duty cycle (on/off): ON 1 min / OFF 10 min time
- Material (housing): Self‑extinguishing material
- Color (typical): Red (option for black on request reported in sources)
- Tone frequency: 1000, 1500 Hz
- Number of tones: 1 count
- Operating temperature range: -30 to +40 °C

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Sirena

42021

24 V AC/DC electromechanical industrial siren (Celere series) with IP43 protection providing a high‑level audible warning for industrial and alarm applications.

Specifications

Physical

Material (housing)

Self‑extinguishing material

Color (typical)

Red (option for black on request reported in sources)

Technical

Nominal voltage

24 AC/DC V

Sound level (at 1 m)

108-109 dB

Protection rating

IP43 IP

Duty cycle (on/off)

ON 1 min / OFF 10 min time

Tone frequency

1000, 1500 Hz

Number of tones

1 count

Operating temperature range

-30 to +40 °C

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