Unique hybrid design, with two tons of holding power. 4,000 lbs holding force, bracket mounted, Magnetic Lock MM15 is a hybrid design with two spring loaded, hardened steel jaws. In the event of a forced entry attempt, the mandibles rotate inward, clamping down and capturing the edges of the armature. Product Features 4000 lbs holding force provides an unmatched level of security Dual voltage (12/24) and dual current (AC/DC) operation Mounting plate provides easy and accurate installation Fail Safe, but can be installed with a battery backup power supply Optional door position switch and anti-tamper switch Optional prep for use with 1/2" conduit Optional finishes via dress covers include Black, Polished Brass and Satin Brass Brackets and accessories to configure any opening Indoor use only UL Listed Strength & Durability Holding Force: 4000 Grade: Grade 1 Electrical Current 12v DC: 100 Current 24v DC: 200 Current 12v AC: 130 Current 24v AC: 250 Environmental Maximum Operating Temperature: 140 Minimum Operating Temperature: -40 Weights & Dimensions Shipping Weight: 6 Height: 6 Width: 2.75 Depth: 1.875 Documents Securitron MM15 Electromechanical Locks Installation Instructions Securitron MM15 Electromechanical Locks Catalog Page Certifications 20150929-R13976 Certificate of Compliance Securitron Maglocks Declaration of Conformance