The IQ331SB Addressable Sounder Beacon Base is a low power consumption, loop-powered base designed to reduce installation cost by combining a detector base with an integrated sounder beacon. IQ331S (smoke) or IQ331H (heat) detectors mount directly onto the base, enabling single-point connection. On receiving a start command from the fire alarm control panel, the base gives a dazzling visual signal and harsh audible alarm to alert people on-scene and prompt evacuation.

Key Features:

• Meets EN54-3 standards
• Easy, reliable rotating installation
• Multiple super bright red LEDs for a highly visible display
• Integrated detector base and sounder beacon — saves installation time, cost, and simplifies maintenance
• Single-point connection for IQ331S and IQ331H detectors
• LPCB certified

Key Specs:

• Loop Unit: DC24V (20–28V), ≤2mA monitoring / ≤8mA alarm
• Power Consumption: ≤0.2W @DC24V
• Sound Output: ≥73dB(A) @1m
• Flash Rate: 1–2Hz | Flash Color: Red
• Protection Class: IP21C
• Operating Temperature: -10°C to +55°C
• Relative Humidity: ≤95%, non-condensing
• Material Body: Flame retardant PC/PC+ABS
• Dimensions: Ø115mm x H44mm (with bracket)
• Weight: ~169g

Wiring: Terminals 1 & 3 connect to the fire alarm control panel loop (L1/L2); terminals 2 & 4 connect to the mounted IQ331S/IQ331H detector. Mode is configurable via CODER-F900E for Sounder & Beacon or Sounder-only operation.