AJAX MultiRelay Fibra Four Channel Relay Module Installation Guide

MultiRelay Fibra Four-channel relay module with potential-free contacts to control power supply remotely.

MultiRelay Fibra is a device of the wired Fibra product line. Only accredited Ajax Systems partners can sell, install, and administer Fibra products.

| Potential-free (dry) contacts
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| Low power consumption: up to 185 mW
| 4 relay outputs
| Automation scenarios

Operation modes

• Bistable — the relay changes contact state after each activation, turning the connected appliance on or off.
• Pulse — the relay changes contact state for the adjustable period of time (from 10 s to 2 h).

Contact states

• Normally closed (NC) — the relay stops supplying power when activated and resumes when deactivated.
• Normally open (NO) — the relay supplies power
• when activated and stops when deactivated.

Protection against overheating: all four relays of MultiRelay are deactivated automatically the moment at least one of them exceeds +85°C.
Steady contact state: the current state of contacts remains the same after a power outage.

Fibra

communication technology

• Up to 2,000 m of wired communication
• Data is encrypted throughout the transmission process
• Regular polling to display current device statuses
• One line for different types of devices

Sabotage resistance

• Tamper alarm1
• Protection against short circuit
• Device authentication to prevent spoofing

Quick installation and setup

• Pairing with a hub via automatic line scanning or QR code
• Remote control and configuration in the app
• Easy maintenance
• Installing into Case2 (sold separately)

Compliance| Compatibility| Communication with the control panel| Features
---|---|---|---
EN 50131 (Grade3)
EN 50130-5, EN 50130-4
EN 55032
EN 55035
EN 60669-1:2018| Hubs
Hub Hybrid (2G)
Hub Hybrid (4G)| Fibra communication technology Wired connection U/UTP cat.5 4×2×0.51 (copper conductor) signal cable 4×0.22 (copper conductor) Communication range up to 2,000 m  With U/UTP cat.5 4×2×0.51 cable| Number of relays 4 relay outputs Relay modes bistable, pulse Operating time for pulse mode from 10 s to 2 h Temperature protection over +85°C Steady contact state If enabled, the current state of contacts remains the same after a power outage.
Power supply| Installation| Board| Complete set
Fibra line 8.5−30 V⎓, up to 185 mW
The hub powers MultiRelay. The module does not supply additionapower to connected appliances. Maximum load current 5 A at 30 V⎓ 10 A at 230 V~| Operating temperature range from −10°C to +40°C Operating humidity up to 75%| Dimensions
90 × 55 × 30 mm Weight 84 g| MultiRelay Fibra Quick start guide
Case is not included in the complete set and sold separately from the MultiRelay Fibra module.

1 — Notification about attempts to open Case or detach it from the surface. Available only when MultiRelay is installed into Case. Case is sold separately.
2 — Case has an optimal arrangement of wire channels, special holders for the module, and a tamper alarm. It’s available in different sizes to place one or several devices inside the casing. More details: ajax.systems/products/fibra/case
For detailed information, scan the QR code or follow the link: support.ajax.systems/manuals/multirelay- fibra/

support@ajax.systems
@AjaxSystemsSupport_Bot
ajax.systems

Documents / Resources

| AJAX MultiRelay Fibra Four Channel Relay Module [pdf] Installation Guide
MultiRelay Fibra Four Channel Relay Module, Fibra Four Channel Relay Module, Four Channel Relay Module, Relay Module, Module
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