Ajax Wireless Wall Switch Front SW423B
Ajax Wireless Wall Switch Front SW423B

Ajax Wireless Wall Switch

R 845.00 Incl. VAT
R 889.00 Incl. VAT

Available to order online or collect at 6 Cosmic Street Linbro Park, Sandton, 2090 (Map)


Product Code: 7649.13.BL1

The Ajax Wall Switch is a radio channel controller that allows you to control domestic appliances remotely. It is used to switch on/off irons, garage gates, water heaters and heat-insulated floors.

  • Authentication to prevent forgery
  • Jamming detection and communication channels encryption
  • Protected from power surges and overheating

With one click in the mobile application, the device switches domestic appliances on and off

The device switches off automatically during overcurrent, voltage surge and overheating

Information on energy consumption is available in the mobile application

Principle of operation

The device controls the electric power supply by means of relay, which closes and opens the power supply network.



Operates in 110 V and 220 V mains. The meter shows the power consumption in real time.


Installation and set up

It is installed into a recessed wall plate and connected to the internal power supply network.


Tech specs


Radio channel relay unit

Device type


Installation method

Into wall plate


Operates only with Ajax hubs and ReX

Actuating element


Relay service life

200,000 switch-ons

Voltage protection

For 230 V mains: max — 264 V, min — 161 V

For 110 V mains: max — 126 V, min — 77 V

Maximum load current

13 A

Maximum current protection

Yes (13 A)

Maximum temperature protection

>65°C in the wall plate

Permissible power

Resistive load at 230 V — up to 3 kW

Resistive load at 110 V — up to 1.5 kW

Electric power meter function


Energy consumption parameter check

Current, voltage, power consumption

Alarm signal delivery time

0.15 s

Power supply

110−230 V±10% 50/60 Hz

Operation modes

  • Impulse (firmware version or higher)
  • Bistable 

Contact state
(firmware version or higher)

  • Normally open 
  • Normally closed

Adjustable pulse duration
(firmware version or higher)

0.5 – 255 sec 

Jeweller radio technology

Communication range with central unit — up to 1,000 m in an open space

Two-way communication between devices

Operating frequencies — 868.0-868.6 MHz

Self-adjusting RF output power — up to 25 mW

Block encryption based on AES algorithm

Detector scanning period — 12−300 s

Operating temperature range

0°С to +64°С

Permissible humidity

Up to 75%

Protection class of body



Protection against fraud

Jamming detection

Remote setting and testing



39 х 33 х 18 mm


30 g




Replacement and repair within 24 months of the date of sale.

Complete set


Installation set

User’s guide