Installing Berker rotary switches

Part 1: Electrical Insert

The main part of the switch, which gets fitted first. Wire the connectors at the back of the unit to the existing electrical installation and then screw the unit into the back box with flat-head device screws (to enable the frame to sit flush on top of the unit).

The connectors on Berker rotary switches are standard screw fittings. The live connector is labelled ‘L1’.

Part 2: Frame

As usual with European switches, the frame that provides the decorative cover over the insert is not permanently fixed to the unit. Berker has two rotary switch designs which are assembled slightly differently.

For a guide to fitting the ‘1930’ Series switches, please follow the procedure described for the THPG rotary switches here.

The frame of the ‘R.Classic’ rotaries is held in place by a plastic sheath and the screwed-in handle/knob (see part 3).

Part 3: Front plate

The small round front plate is placed over the round opening in the frame and is secured with the included small hexagonal nut. Please make sure not to over-tighten the nut, which can cause deformation or cracking of the front plate.

The rotary knob/handle then slides onto the protruding central part of the insert and the included small flat-head screw goes into the centre slot of the handle. The last step of fitting the switch is simply tightening that screw, to secure the handle. Again, please don’t over-tighten anything – Bakelite, Duroplast and particularly Porcelain can crack or splinter easily.

Removing the switch

When removing Berker rotary switches, you simply need to reverse the fitting process. Pull off the handle cover and loosen the small flat head screw in the centre of the sheath until it comes out. Then pull off the sheath and finally remove the frame.

Please note: Swtch sells beautiful and functional wiring accessories. But we are not qualified electricians. We are not able to give detailed installation advice or consultation, although we will always try to help you or your electrical installers.

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