Control

Bell Push

Momentary by design: it conducts only while you hold it, which is why the bell rings once and stops.

Photorealistic doorbell push button on a surround plate
Real part — tap a marker

Bell Push

Momentary by design: it conducts only while you hold it, which is why the bell rings once and stops.

Terminals
  • Two terminals on a simple bell push — one conductor in, one out
  • Some illuminated pushes need a neutral as well
  • Button cap — the part you press
  • Bezel or surround — the decorative ring and plate
  • Spring return — drives the contacts open again
  • Normally-open contacts — closed only while pressed
  • Fixing screws or a hidden clip
⚡ Meet it in a circuit

Terms used here

Defined in the glossary — each one opens at its own entry.

⚠ Safety note

Most bell circuits run at extra-low voltage from a transformer or a bell unit, which makes the wiring itself safe to handle. The transformer does not: it is mains equipment, mounted in a cupboard or the consumer unit, and it must be isolated before any work on it.

More components
← Bell / BuzzerContactor (3-pole) →

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