AJAX Relay User Manual

Operating Principle
Do not connect Relay power supply input terminals to a voltage exceeding 36 V or
alternate current sources. It creates a risk of fire and will damage the device!
Regardless of the type of electrical circuit, only a qualified electrician should
install Relay!
Relay is powered by a 7–24 V DC source. The recommended voltage values are
12 V, and 24 V. Use the to connect and set up Relay.
Relay features dry (potential-free) contacts. The contacts are not connected to
the device galvanically so that Relay can imitate a button, switch, etc. in
electrical circuits of various voltages (sirens, electrical valves, electromagnetic
locks). The miniature body makes it possible to install Relay inside a junction
box, switchboard, or a switch.
Relay closes and opens the contacts by user command from the app or
automatically by scenario.
Relay operation modes:
PS IN terminals — “+” and “-” contact terminals, 7-24 V DC input power
supply.
Relay terminals — output potential-free terminals.
Ajax Security System app

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%

Weight and Dimensions

Dimensions	39 × 33 × 18 mm
Weight	25 g