Adams Rite 8801EL Electric Latch Retraction for Rim Devices for Aluminum/Glass Doors Easy to install. Unobtrusive design for clean sight lines. Strong and durable construction for a high level of security. The EL option uses a solenoid mounted in pushbar for instantaneous unlocking and locking of the exit device from a remote location or access control device. Because electrical operation of device is fail-secure also this option can be used on fire-rated as well as life-safety applications. In the event of a power failure device automatically relocks. Rim-device available in 24 VDC and can be powered with a simple transformer and rectifier or other DC supply.