Notifier B401 Plug-In Smoke and Heat Detector Base – 2-Wire

The Notifier B401 is a circular, plug-in detector base designed for compatible System Sensor conventional smoke and heat detector heads. It supports conventional 2-wire fire alarm systems and includes screw terminals for power and remote indicator connections, making it suitable for fire detection installations.

Technical Specifications

• Brand: Notifier

• Model: B401

• Product Type: Plug-In Smoke and Heat Detector Base

• System Type: Conventional 2-wire

• Shape: Circular

• Material: Plastic housing with electrical contacts

• Colour: Typically white or ivory, depending on version

• Connections: Screw terminals

• Remote Indicator Connection: Supported

• Base Diameter: Approximately 102mm

• Base Height: Approximately 19–20mm

• Mounting: Compatible junction boxes, including 50mm and 60mm boxes