Ajax Relay - Wireless Dry Contact Relay Module

Relay — dry contact relay

Relay is a dry contact relay to control a power supply remotely. The relay’s dry contacts are electrically isolated from the power supply circuit of the device. Relay can be used in both low-voltage and domestic power grids. The device features two types of protection: voltage and temperature. Only a qualified electrician or installer should install Relay. It works only with Ajax radio signal range extenders and hubs.

At a Glance

• Potential-free (dry) contacts — electrically isolated from the relay power supply
• Supply 7–24 V DC (recommended 12 V DC and 24 V DC)
• Pulse or bistable; pulse duration 0.5 to 255 s
• Maximum load: 5 A at 24 V DC / 36 V DC and 13 A at 230 V~
• Jeweller range up to 1,000 m in an open space

Electrical

• Actuating element: electromagnetic relay
• Number of switchings: ≥ 200,000
• Supply voltage range: 7–24 V DC
• Voltage protection: minimum 6.5 V DC; maximum 36.5 V DC
• Maximum load current: 5 A at 24 V DC; 13 A at 230 V~
• Operating mode: pulse or bistable
• Pulse duration: 0.5 to 255 s
• Maximum current protection: no
• Parameter control: voltage
• Energy consumption in standby mode: up to 1 W
• Cross-sectional area of the cable: 0.75–1.5 mm² (22–14 AWG)
• If you use inductive or capacitive load, the maximum switching current decreases

Jeweller radio

• Radio communication protocol: Jeweller
• Radio frequency band: 866.0–866.5 / 868.0–868.6 / 868.7–869.2 / 905.0–926.5 / 915.85–926.5 / 921.0–922.0 MHz (depends on the sales region)
• Maximum radio signal strength: up to 25 mW
• Radio signal modulation: GFSK
• Radio signal range: 1,000 m in an open space
• Polling interval: 12–300 s (36 s by default)
• Compatibility: all Ajax hubs and radio signal range extenders

Physical & Power

• Protection class: IP20
• Operating temperature: −20°C to +64°C
• Maximum temperature protection: over +65°C at the place of installation; over +85°C inside Relay
• Operating humidity: up to 85% with no condensation
• Dimensions: 39 × 33 × 18 mm
• Weight: 25 g
• Service life: 10 years

Part number: 42837.19.NC3

Downloads

Specification Sheet (PDF)