Ajax wireless dry contact relay, 7–24 V DC, black
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Choose countryThe Ajax wireless relay uses a voltage-free dry contact to switch connected appliances and devices on or off through an app or browser. It can act as a switch or imitate a button press using pulse control.
Control and radio communication
Jeweller communication reaches up to 1 000 m from Ajax Hub in open space without obstacles. A remote antenna improves reception, and the relay response can be checked at intervals of 12–300 seconds.
- Settings retention: settings are remembered after a power failure.
- Voltage monitoring: voltage control, voltage protection and overheating protection are provided.
- Connected load: maximum current is 5 A at 36 V DC or 13 A at 230 V AC; overcurrent protection is not provided.
Power and installation
The relay requires a 7–24 V DC power source. It is intended for indoor installation inside connection boxes, electrical service panels or switchboard housings. The IP20 enclosure measures 38 × 25 × 18 mm.
The package includes the relay, a user manual and double-sided adhesive tape.
| Colour | Black |
|---|---|
| Use | Indoor |
| Actuator | Electromagnetic relay |
| Relay service life | 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 |
| Overcurrent protection | No |
| Overheating protection | Above 65 °C (+145 °F) at the installation location or above 85 °C (+185 °F) inside the relay |
| Output power | Up to 3 kW (resistive load, 230 V) |
| Parameter monitoring | Yes, voltage |
| Energy consumption | Less than 1 Wh |
| Communication protocol | Jeweller (868.0–868.6 MHz) |
| Radio signal power | 25 mW |
| Modulation | GFSK |
| Maximum distance to Hub | 1 000 m without obstacles |
| Enclosure protection rating | IP20 |
| Operating temperature range | 0 °C (+32 °F) to +64 °C (+147.2 °F), ambient |
| Operating humidity | Up to 75% |
| Dimensions | 38 × 25 × 18 mm (1.49 × 0.98 × 0.70 in) |
| Weight | 32 g |
| Antenna | Remote antenna |
| Settings retention | Settings retained after power failure |
| Control modes | Switch or button simulation; pulse control |
| Relay response check interval | 12–300 s |
| EAN | 4823114015854 |
|---|
Can the relay be powered by 230 V AC?
No. The relay requires a 7–24 V DC supply. The 13 A at 230 V AC rating refers to the switched load, not the relay's own power supply.
Can it imitate a button press?
Yes. Pulse control allows it to imitate a button press, and it can also act as a switch.
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