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Schneider Electric Harmony wireless transmitter 22mm diameter push button

Schneider Electric

Schneider Electric Harmony Wireless Transmitter 22mm

SKU CH-QK5R-9Q1P4

A batteryless 22mm push-button transmitter converts mechanical press energy into a radio signal to remotely actuate a relay receiver

  • Batteryless operation with dynamo generator converts press energy
  • Radio transmission reaches several dozen metres for remote control
  • One receiver accepts multiple transmitters for flexible setup
  • 22 mm mounting fits standard industrial cut-outs
  • Harmony range enables wireless relay control without wiring

Wireless Transmitter 22mm

The Schneider Electric Harmony transmitter is a batteryless push button that uses a built-in dynamo to convert mechanical press energy into a radio signal. It is designed for installers who need a wireless switch without wiring or battery maintenance. The unit fits a standard 22mm mounting hole for panel or enclosure installation.

Replaces Wired Switch Runs

This transmitter removes the need to run control cables between a push button location and a relay receiver. The upgrade is worth it when conduit routing is impractical, when retrofitting controls onto finished surfaces, or when a switch must be repositioned without re-wiring. One receiver can accept multiple transmitters for flexible control layouts.

Simple Panel Mount Installation

The transmitter mounts directly into a 22mm cut-out and requires no external power source or battery compartment access. Common issues include exceeding the radio range through dense walls or metal enclosures, and failing to pair the unique ID code with the intended receiver during commissioning.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $406.99
Pricier than about 91% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameSchneider Electric

Questions about this item

What panel cut-out size is required for the 22 mm transmitter?

The transmitter mounts in a standard 22 mm diameter cut-out.

How is the transmitter powered during installation?

Pressing the button spins an internal dynamo that generates the energy for each radio transmission.

Does the dynamo generator need periodic replacement?

The mechanical generator is built for long service life and has no battery to replace.

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