Elmdene 4AMP 24V Transformer Rectifier W230 X H200 X D80

The TR range of power supplies are designed specifically for use with electromagnet door open retainers such as used on fire doors. A 24vdc output is provided for direct connection to the door retainer electromagnet.
A versatile remote control input permits flexible connection to various remote control sources to switch off the output in the event of a fire alarm or other command, with the following options:
A. Removal of an External 24V dc supply – BS7273 Compliant
B. Normally Open going Closed volt-free contact
C. Normally Closed going Open volt free contact
Fully failsafe operation to the requirements of BS7273 Category A is provided with option ‘A’ i.e. failsafe (output off) under the following conditions: Open or short circuit faults in wiring between fire control system and release mechanism, faults in power supply.
LED status indicators provide quick diagnostics showing the presence of a mains input, and an output fuse failure.

Note this power supply should NOT be used for charging standby batteries.