Ajax Relay Jeweller Wireless Low-Current Dry Contact Relay

Ajax Relay Jeweller Wireless Low-Current Dry Contact Relay

The Ajax Relay is a compact wireless automation module that lets you remotely switch low-voltage equipment as part of an Ajax security ecosystem. Connected to the hub via the long-range Jeweller radio protocol, this dry contact relay closes and opens circuits to control devices such as electric locks, gates, irrigation valves, and lighting, turning a standard alarm system into an active, responsive smart security setup.

Key Features

• Wireless Jeweller connectivity with a communication range of up to 1,000 metres in open space, removing the need for control wiring back to the hub.
• Dry (potential-free) contacts that are electrically isolated from the device's own power supply, allowing safe use in both low-voltage and household circuits.
• Flexible operating modes including bistable (on/off) and pulse switching, configurable from 0.5 to 255 seconds.
• Wide input voltage range of 7–24 V DC, suitable for pairing with a backup-battery power supply unit for uninterrupted operation.
• Compact footprint designed to fit inside junction boxes, distribution boards, and electrical appliance enclosures.
• App-based control allowing users to trigger the relay manually via the Ajax app, the on-device function button, or a wireless Button accessory.
• Automation scenario support, enabling the relay to respond automatically to alarms, arming/disarming events, schedules, temperature, or humidity triggers.
• Built-in voltage and temperature protection to guard the device and connected equipment during operation.

Typical Applications

Installers commonly use the Ajax Relay to automate everyday routines around a protected property. It can lock an electric gate the moment the system is armed, restart an unresponsive router remotely, open roller shutters on a schedule, activate an anti-flood shut-off valve, or simulate occupancy by switching lights on and off while residents are away. Because the relay integrates directly with Ajax scenarios, the security system moves beyond simple alerting and can take direct action against detected threats.

What's in the Box

• Ajax Relay Jeweller unit
• Mounting screws and accessories
• Quick start guide

Frequently Asked Questions

Does the Relay need a separate power supply?
Yes, it operates on 7–24 V DC and is typically wired to a suitable power supply unit, ideally one with a backup battery for continued operation during outages.

Can the Relay control household mains voltage devices?
Because its dry contacts are electrically isolated from its own power supply, the Relay can be wired into both low-voltage and household circuits, though installation should always be carried out by a qualified electrician.

How far can the Relay be from the Ajax hub?
Using the Jeweller radio protocol, it can maintain a stable connection with the hub at distances of up to 1,000 metres in open, unobstructed space.

Additional Resources

• More info
• User Manual