What do the different colours of the manual actuators on the relays mean?
The manual actuator of our pluggable relays is colour-coded according to the coil voltage. This makes it easy to recognise the correct voltage type and avoids confusion.
| red | 230 V AC (50 Hz & 60 Hz) |
| dark red | other AC voltages |
| blue | 24 V DC |
| dark blue | other DC voltages |
| grey | suitable for AC and DC voltages (universal current "UC") |
Special actuators
| orange | push only This manual actuator cannot be locked, but will override the coil and actuate the contacts when pressed. |
| black | Dummy button. This manual actuator can be used if the relay must not be operated manually. The regular actuator can be replaced with this black dummy button. This prevents any further manual actuation. |