Ajax Systems

Ajax Relay

Dry contact relay

A wireless relay with a voltage-free dry contact that turns appliances and devices on and off, powered by a 7-24 V DC source. Can imitate a button or a switch.

Download manual
  • Works up to 1,000 meters from Ajax Hub in open space or across several floors of a business center
  • Allows for remotely switching connected devices on and off through the app or a browser
  • Has a pulse equipment control function
  • Protected from power surges and overheating
  • Response from the relay can be checked every 12-300 seconds
  • Uses a remote antenna for better reception
  • Operating voltage range: 7-24V
  • Remembers settings after power failure
  • Installed inside the connection boxes, electric service panels, or the housings of electric switchboards
Tech specs
  • Color:
  • Use:
  • Actuator:
    Electromagnetic relay
  • Service life of the relay:
    200,000 switchings
  • Supply voltage range:
    7-24 V (DC only)
  • Voltage protection:
    Yes, min — 6.5 V, max — 36.5 V
  • Maximum load current*:
    5 A at 36 V DC, 13 A at 230 V AC
  • Maximum current protection
  • Max. temperature protection:
    Yes, over 65°C (+145°F) at the place of installation or over 85°C (+185°F) inside the Relay
  • Output power* (resistance load 230 V):
    Up to 3 kW
  • Parameter control:
    Yes (voltage)
  • Power consumption:
    Less than 1 Wh
  • Communication protocol:
    Jeweller (868.0-868.6 MHz)
  • Radio signal power:
    25 mW
  • Modulation:
  • Maximum distance between the device and the Hub:
    1,000 m (any obstacles absent)
  • Radio signal power:
    25 mW
  • Shell protection rating:
  • Operation temperature range:
    From 0°С (+32°F) to +64°С (+147.2°F) (ambient)
  • Operating humidity:
    Up to 75%
  • Dimensions:
    38х25х18 mm (1.49x0.98x0.70 in)
  • Weight:
    32 g
* If using inductive or capacitive load, the maximum commutated current decreases to 3 A at 36 V DC and to 8 A at 230 V AC!
  • Relay
  • Manual
  • Double-sided adhesive tape