ELR option REQUIRES ELR150 Series Power Supply. UL Listed for Panic Class II Circuitry ELR can be used in combination with all Apex options including Hex Key or Cylinder Dogging. ELR option is not available for (DE) Delayed Egress Devices. Door Width 3 Device - 2-7 to 3-0 Door A standard device can be retrofit to the Electric Latch Retraction option by ordering the kit Solenoid Specifications Current Pulse (2 seconds max.) 4.75 Amp. Continuous 3.6 VDC / 0.8 Amp. Note: Power may be supplied through a 4-wire continuous circuit hinge (furnished by others).