Sounder

S-C480 Conventional Sounder is a kind of audible alarm device used to warn people in field when fire occurs. It can give audible alarm when applied to 24VDC power (D1 connected with anode and D2 with cathode).


Operating Voltage 24VDC
Operating Current ≤65mA
Wiring 24VDC power line, polarity-sensitive
Minimum Sound Level 75dB
Sound Pattern 2.8kHz (400ms on/340ms off)
Ingress Protection Rating IP33
Operating Temperature -10°C to +50°C
Relative Humidity ≤95%, non condensing
Material and Color of Enclosure ABS, red (PANTONE 1795C)
Dimension (L×W×H) Dia. 110mm×97.5mm (deep base)
Dia. 110mm×83mm(shallow base)
Mounting Hole Spacing 55mm to 80mm
Weight About 345g (deep base),
About 317g(shallow base)
  • High sound level, over 75dB at 3m ahead horizontally (A weighted).
  • Circuitry and base are twisted together.
  • Standard: EN 54-3.

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