Product Overview

The LFSBBB-W Low Frequency Sounder Back Box is designed to support the PAD100-LFSB addressable low-frequency sounder base, enabling applications such as single-station operation, grouped activation, or full system-wide notification. It provides compliant low-frequency audible signaling per NFPA 72 and UL 464 and integrates seamlessly into Potter addressable fire alarm systems using PAD sub-point addressing. The unit features field-selectable sensor locking, accessible sounder components, and internal supervision of the 24 VDC sounder power eliminating the need for external supervision relays.

Key Features

Model Number: LFSBBB-W
Item Number: 3992761
Supports single, grouped, or all-call activation
Mappable to any device connected to the control panel
Terminals accept 18–12 AWG wire sizes
Compatible with Class A, Class X, and Class B wiring
Uses PAD sub-point addressing and does not require its own SLC address
Meets NFPA 72 and UL 464 low-frequency signaling requirements
Internal supervision of 24 VDC sounder power no external relay needed
85 dBA minimum sound pressure output
Operating range: 16–33 VDC, with detailed current specifications
Environmental ratings:
- 32°F to 120°F (0°C to 49°C) operating temperature
- 0%–93% non-condensing humidity
Supports up to 127 devices per zone
Color: Eggshell White
Dimensions: 6 in diameter, 2.75 in height (without detector)
Suitable for wall or ceiling mounting

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