Electrical Lock Cortelco 932080E: Electrical lock with hold-open function Type BEFO 1221 12V / 600 mA. For opening of the lock a short electrical impuls is sufficient, which unlocks the lock. Lock is then open until someone closes the door. Part Number: 932080E -Interoperability- Cortelco 932080E Electrical Lock with momentary pin Type BEFO 1221 12V / 600 mA. A timed electrical impulse unlocks the lock. Lock is remains open until someone closes the door.