Name: Ajax Relay - Dry Contact for Low Voltage Devices
Brand: Ajax
SKU: 38204.19.NC1
Availability: InStock

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Ajax Relay – Dry Contact for Low Voltage Devices

Original price was: R919.00.Current price is: R745.00. Incl. VAT

Wireless dry-contact relay for low-voltage automation
Controls gates, garage doors, lighting and access devices
Part of the Ajax security and automation ecosystem
Remote control via the Ajax mobile app
Compact design for easy integration into enclosures

SKU: 38204.19.NC1 Categories: Alarm Systems, Relays & Automation Devices, Smart Alarm Systems Brand: Ajax

Description
Docs, Links & Specs

Description

Ajax Relay – Dry Contact for Low Voltage Devices

The Ajax Relay is a compact wireless dry-contact module designed to control low-voltage electrical devices as part of an Ajax alarm or automation system. It allows you to remotely switch compatible equipment on or off, or trigger momentary actions, directly from the Ajax app.

Using a dry (potential-free) contact, the Ajax Relay does not supply power to the connected device, making it ideal for safely interfacing with third-party equipment such as gate motors, garage doors, electric locks, lighting controllers and automation panels.

Once paired with an Ajax hub, the Relay can be controlled manually, scheduled, or triggered automatically by system events, scenarios or alarm states, providing flexible and reliable automation for residential and commercial installations.

Key Features

Dry-contact output for safe integration with low-voltage devices
Remote on/off control via the Ajax mobile app
Supports pulse (momentary) or bistable operation modes
Can be activated by scenarios, schedules or system events
Compact form factor for installation inside control panels or enclosures
Encrypted wireless communication with the Ajax hub

Technical Specifications

Power supply: 7–24 V DC
Relay type: Dry contact (potential-free)
Relay modes: Normally Open (NO) / Normally Closed (NC)
Operating modes: Bistable or pulse (momentary)
Maximum load:
- 5 A at 36 V DC
- 13 A at 230 V AC
Wireless protocol: Ajax Jeweller
Operating frequency: 868.0 – 868.6 MHz
Compatibility: Works with all Ajax hubs and range extenders
Installation: Indoor, inside enclosure or protected housing
Dimensions: 39 × 33 × 18 mm

Typical Applications

Gate and garage door triggering
Electric locks and access control systems
Low-voltage lighting circuits
Automation panels and controllers
Custom smart home and security integrations

Additional Information

The Ajax Relay is intended for low-voltage applications only and must be installed in accordance with the connected device’s specifications. Installation inside a suitable enclosure is recommended to ensure protection and compliance.

What’s in the Box

Ajax Relay module
Installation guide

IMPORTANT – COMPATIBILITY & VOLTAGE NOTICE

Ajax Relay is a dry-contact (potential-free) device and does not supply power to connected equipment.
It is intended for low-voltage control circuits only and must be wired according to the specifications of the device being controlled.

Ajax Relay must not be connected directly to mains voltage (220–240V AC).
Incorrect wiring or use outside the supported voltage range may result in device damage and will void the warranty.

Installation inside a suitable enclosure by a competent installer is strongly recommended.

Ajax Relay vs Ajax WallSwitch – Which One Do I Need?

Feature / Use Case	Ajax Relay	Ajax WallSwitch
Output type	Dry contact (potential-free)	Powered output
Supplies power to device	❌ No	✔ Yes
Suitable for low-voltage trigger inputs	✔ Yes	❌ No
Suitable for switching mains devices	❌ No	✔ Yes (within rated limits)
Typical applications	Gate triggers, garage doors, access control inputs, automation panels	Lights, pumps, heaters, mains-powered appliances
Voltage at output	No voltage (external supply required)	Outputs mains voltage
Best used when	You need to trigger or interface with another system	You need to switch power to a device