AJAX Relay User Manual (English)

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Relay User Manual

Updated November 30, 2020

Relay is a wireless, low-voltage relay featuring potential-free (dry) contacts. Use

Relay to remotely switch on/off appliances powered by a 7–24 V DC source.

Relay can operate both in pulse and bistable mode. The device communicates

with a hub via radio protocol. In the line of sight, the communication

distance is up to 1,000 m.

Regardless of the type of electrical circuit, only a qualiﬁed electrician should install

Relay!

The Relay contacts are not galvanically connected to the device itself, so they

can be connected to the input control circuits of various equipment to imitate a

button, toggle switch, etc.

Relay is compatible only with and does not support connecting via

or .

Jeweller

Ajax hubs uartBridge

ocBridge Plus

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AJAX Relay Specifications

General

Actuating element	Electromagnetic relay
The service life of the relay	200, 000 switchings
Operating modes	Pulse and bistable
Pulse duration	0.5 to 255 seconds
Parameter control	Yes (voltage)
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	No
Device energy consumption	Less than 1 W⋅h
Frequency band	868.0 – 868.6 MHz or 868.7 – 869.2 MHz depending on the region of sale
Effective radiated power	3.99 mW (6.01 dBm), limit — 25 mW
Modulation of the radio signal	GFSK
Maximum distance between the device and the Hub	Up to 1000 m (any obstacles absent)
Communication ping with the receiver	12 – 300 sec (36 sec default)
Compatibility	Operates only with all Ajax hubs, and range extenders
Shell protection rating	IP20
Operating temperature range	From 0°С to +64°С (ambient)
Max. temperature protection	Yes, over 65°C at the place of installation or over 85°C inside the Relay
Operating humidity	Up to 75%