Description
LiftMaster LM21XP Extended Performance Release Device
The LiftMaster LM21XP Release Device is a UL/ULC listed normally energized fail-safe device designed for use on rolling doors, single-slide, center-parting level, and inclined track doors. This device is a normally energized fail-safe releasing device incorporating state-of-the-art electronic control circuitry.
The release device responds to emergency conditions generated from an automatic initiating device and is used in conjunction with a temperature fuse link system. This device is designated to be used with manual doors but can be used on motorized doors incorporating a fusible link assembly and drop-out mechanism.
The release device must be powered from 24Vdc received from an approved UL 1481 regulated power supply with battery backup.
