ANSI/BHMA A156.25 Electrified locking devices
Electrified locksets, strikes and exit devices — the correct path when a door already has power and access control. Designation to be re-confirmed against the current BHMA catalogue.
What it actually decides
- Fail-safe versus fail-secure behaviour
- Electrical ratings and monitoring
- Egress compliance for electrified hardware
Applies to these lock types
Mortise lockset (ANSI/BHMA A156.13) · Bored lever or knob set (ANSI/BHMA A156.2)
Why a retrofit designer cares
A battery motor on a door that already has power is usually the wrong answer.