Schedule Service Schedule Estimate Design My Door
Call Today: 980.263.0092


LM21XPBB - Extended Performance Release Device

The XPBB release device provides the functionality of a standalone fire alarm system including battery backup for installations prone to power outages or the existing alarm system is unable to support the door release system.
Contact us about this product
  • UL864 Revision 9 compliant
  • Programmable DIP switch delay setting - either 10, 20, 30, or 60 seconds delay of door release to permit passage clearance
  • Inputs for normally open 2- or 4-wire detectors and 4-wire normally closed detectors
  • Trouble and alarm relays for communication with the fire alarm control panel, if required
  • Audible trouble sounder to indicate when the release device is not operational
  • On board diagnostic LEDs for easy troubleshooting
  • Testing function allows routine fire door testing without requiring activation of the smoke detector
  • Model LM21XPBBVB is equipped with a voice board to broadcast a pre-recorded voice evacuation message

Additional Information

About Us Services FAQ

Call Us Today



Schedule Service

Contact Us


Schedule Estimate

Contact Us