Rutherford Controls hard-working multi-purpose electromagnetic locks enhance building security and install quickly. Several standard features make these magnets the "workhorse" of the industry. The adjustable mounting bracket has been enhanced with keyhole mounting to support the magnet's weight during initial installation, freeing the installer's hands to affix the magnet mounting screws. The removable cavity cover offers quick, easy access to wiring. These models feature a built-in, adjustable time delay with instant unlock and de-layed relock (up to 110 seconds), which can be controlled by any standard switching device. Applications: single outswinging doors, single inswinging doors (use with z bracket), government facilities, office complexes, warehouses, retail, commercial, industrial and health care. Hardened steel armature nut fitted. Adjustable keyhole mounting lock. Convenient plug-in wiring terminals. Easy access wiring cavity. Encapsulated 4-bolt "drop-stop" mounting. CULUS listed, MEA, CSFM certified. 1500 Pounds holding force. Power/current requirements max 0.28A at 12/24 VDC. Wiring requirements 2 wires - power input up to 4 wires output. Lifetime warranty. Measures 10-1/2-inches length by 2-7/8-inches width by 1-5/8-inches depth.