Power distribution modules for electric strikes receive power from a centralized supply and connect to access control systems through individually controlled inputs, such as open-collector signals or normally open dry contacts. They can also connect to a fire alarm panel through normally open or normally closed supervised inputs, or polarity-reversal signaling, to activate fire alarm disconnects and release selected strike outputs for emergency egress.

Compare whether the module supports the electric strike’s required voltage, such as 12 V or 24 V AC or DC, along with the total output capacity, such as 4 A, 6 A, or 10 A. Also compare the number of independently controlled outputs, commonly four, five, or eight, and review the per-output protection and rating for the planned load.

Fused power distribution modules for electric strikes use a fuse to protect each output, so a blown fuse typically requires replacement before that circuit can operate again. PTC-protected modules use resettable overcurrent protection that can return to service after the fault clears, while both types can provide individually controlled outputs for fail-safe or fail-secure operation.

Choose fail-secure operation when the electric strike should remain locked if power is interrupted, which suits many exterior or security-focused openings. Choose fail-safe operation when the opening should unlock during a power loss or fire alarm condition to support egress, and confirm the choice against local codes, door hardware, and the access control system.