Power distribution modules receive power from a shared source or built-in power supply and route it through individually protected outputs to mag locks, with access control triggers such as card readers, keypads, or push buttons controlling each output. A fire alarm panel can connect through a normally open or normally closed input, or a polarity-reversal trigger, to activate selectable fire alarm disconnects for emergency egress and alarm monitoring.

Fused outputs protect each mag lock circuit with an individual fuse, while power-limited outputs use Class 2 PTC protection to limit current. The listed PTC designs are auto-resettable, and both output types can provide independently controlled power for mag locks and other access control devices.

Count the mag locks and other access-control devices that need separate power or control, then choose a module with enough independently protected outputs, such as four, five, or eight outputs. Match the module’s available voltage to the lock specifications, typically 12 VDC or 24 VDC, and confirm that the total current demand stays within the module’s rated capacity.

Power distribution modules for mag locks support fail-safe or fail-secure operation through independently controlled outputs that can switch between operating modes and respond to access-control triggers. Fire alarm panel interfaces can disconnect selected lock outputs for emergency egress, with options such as supervised normally open or normally closed inputs, polarity-reversal triggers, and alarm relay contacts on supported configurations.