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271 Ground Fault Detection Module

Connects to XR Series fire control panels to provide ground fault annunciation.

The 271 is a ground fault detection module that allows you to detect ground faults without harming the control panel. The module connects to a zone and earth ground to determine if there is a fault. If a ground fault is detected, the module will trigger an output to the zone it’s connected to. This zone should be labeled Ground Fault and made a Supervisory zone. If programming is done correctly, the keypad will read "Supervisory Alarm - Ground Fault," and the panel will annunciate the alarm, which is communicated to the monitoring center via a panel zone.

  • Fire
  • Small to large business
  • Commercial
  • Enterprise 

Underwriters Laboratories Listings

  • ANSI/UL 864 - Control Units for Fire Protective Signaling Systems

If your AHJ requires annunciation of ground fault in field wiring, DMP's 271 module allows you to meet that requirement. Learn more.