Fenwal 4WRB Detector Base

Fenwal 4WRB 4-Wire Base with Auxiliary Relay, Remote LED & Test

The Fenwal 4WRB 4-Wire Base with Auxiliary Relay, Remote LED & Test enhances the functionality of compatible Fenwal smoke and heat detectors. This versatile base integrates a built-in auxiliary relay, a remote LED output, and a convenient test switch—offering added control, visibility, and ease of maintenance in a single solution.

Multiple Functions in One Compact Unit

This 4-wire base delivers more than just mounting support. The auxiliary relay triggers external devices, such as strobes or ventilation systems, when the detector activates. At the same time, the remote LED output clearly signals status changes, making visual confirmation simple. Thanks to the test switch, maintenance teams can perform system checks quickly and without disrupting daily operations.

Seamless Integration with Fenwal Detectors

Designed to work with a range of Fenwal conventional detectors, the Fenwal 4WRB 4-Wire Base with Auxiliary Relay, Remote LED & Test simplifies installation while enhancing performance. Its 4-wire configuration allows separate connections for power and signaling, reducing the chance of circuit overloads. Because of this design, electricians and technicians can wire and commission the unit with minimal effort.

Built for Demanding Environments

Crafted with durability in mind, this base functions reliably in various commercial and industrial settings. Whether installed in an office building, hospital, or manufacturing facility, the 4WRB maintains strong electrical connections and stable performance. The materials resist wear and environmental stress, ensuring dependable long-term use.

Flexible Applications and Benefits

This model fits perfectly in both new installations and retrofit projects. It provides added control through the relay and supports external indicator integration via the LED terminal. With its user-friendly features and solid build quality, the 4WRB stands out as a smart and reliable component in any fire detection system.

For added control and monitoring in your fire alarm setup, choose the Fenwal 4WRB 4-Wire Base with Auxiliary Relay, Remote LED & Test. It combines functionality, compatibility, and ease of use—making it an ideal choice for both professionals and facility managers who want more from their detection base.

Download the Specification sheet in *.pdf format

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