HES MM15DT 4,000 lb Electromagnetic Lock with Monitoring

Secure controlled doors with 4,000 lb of electromagnetic holding force while retaining monitoring signals for the access-control system. The HES MM15DT is an electromagnetic lock for protected openings that require substantial holding strength, 12/24 V AC/DC power compatibility, and status feedback at the lock. Its stainless-steel construction suits security installations where the locking hardware remains exposed at the opening. Door-status switching provides a signal related to the door condition, while tamper monitoring supports supervision of the lock installation. These capabilities let the access-control panel receive more information than a basic locking command alone, helping system designers incorporate opening status and tamper events into their monitoring logic. The lock operates from either 12 V or 24 V AC/DC power, allowing it to align with common low-voltage security power architectures. This model combines a 4,000 lb holding-force rating with integrated door switch and tamper functions. That combination makes it suited to monitored commercial, institutional, and high-security openings where the locking device must work alongside credential readers, door controllers, request-to-exit devices, and alarm monitoring. Select mounting hardware, power capacity, door construction, and release requirements to suit the specific opening and the system design.