System Sensor B114LP

The System Sensor B114LP is a 120V AC smoke detector base. Use it with the 2151 photoelectronic and 1151 ionization heads. It is a 4-wire, low-profile detector base. It has screw terminals for power, ground, relay connections, and an optional RA400Z/RA100Z remote annunciator. It also includes a resistor that limits current when the smoke detector is in the alarm state.

Unlike low-voltage detector bases, the B114LP operates on 120V AC power and is intended for use in 4-wire configurations. In this setup, separate wiring is used for power and alarm signaling, allowing the detector to maintain operation while independently reporting alarm conditions to the control system. This type of configuration is often used in systems where line voltage power is readily available and dedicated signaling circuits are required.

The base includes screw terminal connections that support straightforward wiring for both power and signal conductors. This makes it suitable for new installations as well as replacement applications where an existing base needs to be swapped without major wiring changes. The design supports consistent electrical connections, which is critical for maintaining reliable detector performance.

The B114LP is compatible with System Sensor smoke detector heads designed for 4-wire operation. When paired with a compatible detector, the base allows the device to be securely mounted while providing proper electrical interface for both power and alarm signaling. The low-profile design helps maintain a clean installation appearance on ceilings or walls.

This base can also support tamper-resistant installation when used with compatible locking features, helping prevent unauthorized removal of the detector head. This is particularly useful in commercial environments where device security and reliability are important.

The System Sensor B114LP provides a dependable solution for installing 120V 4-wire smoke detectors, ensuring proper mounting and electrical connection in life-safety systems that require line voltage operation.

Specifications

• Manufacturer: System Sensor
• Model: B114LP
• Device Type: Detector base
• Voltage: 120V AC
• Wiring Type: 4-wire configuration
• Connection Type: Screw terminals
• Installation: Ceiling or wall mount
• Compatibility: System Sensor 4-wire smoke detector heads
• Features: Tamper-resistant capability (with locking feature)
• Application: Fire and smoke detection systems
• Use Case: Mounting and power/signal interface for detectors