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Convert an intermediate circuit to push buttons and an impulse relay

An intermediate circuit needs many cores between the switches. With push buttons and an impulse relay, one button line is enough, and you can add as many switch positions as you like.

Junction box13✓Fuse box✓Switch 15Switch 26Switch 35

Intermediate → Push buttons + impulse relay 29 steps in 4 boxes

Work out the plan for your boxes ▶

Different cables, swapped colours, more switches? The calculator takes over this setup and you adjust it.

⚡ Work on fixed electrical installations belongs in the hands of a qualified electrician. Take the plan to yours. Safety notes

More about this change

The switches are replaced by push buttons. The impulse relay is best placed in the junction box and toggles on every press.

What to watch out for

  • A flush-mounted impulse relay (e.g. Eltako ES12) needs some room in the junction box. Otherwise it goes on the DIN rail in the distribution board.
  • The impulse relay needs neutral for its coil. The junction box has it.

What you need

  • 1× Flush-mounted impulse relay (e.g. Eltako ES12)
  • 3× Push-button insert (NO)
  • 8× Wago 221-412 (2-way)
  • 1× Wago 221-413 (3-way)
  • 2× Wago 221-415 (5-way)

More changes: Without smart home