Ajax MultiRelay Fibra (127496.183.NC1) is a four‑channel wired relay module with potential‑free (dry) contacts for remote control of third‑party devices and advanced automation inside Ajax Fibra wired or hybrid systems. It is powered from the Fibra line (8.5–30 V DC), supports bistable and pulse relay modes (pulse 1 s to 2 h), and reports events to the hub/CMS for rapid monitoring and integration with automation scenarios.

• 4 independent relays with potential‑free (dry) contacts; each relay configurable NO/NC.
• Relay modes: bistable (toggle) and pulse (1 s – 2 h), configurable per relay from apps.
• Relay ratings: up to 5 A @ 30 V DC (resistive) and up to 10 A @ 110–230 V AC.
• Powered from Fibra line (8.5–30 V DC); low device consumption (~185 mW).
• Fibra wired two‑way encrypted communication; connection at any point of Fibra line; reach up to 2,000 m (recommend U/UTP Cat.5).
• Indoor installation (Ajax Case recommended); tamper option available with Ajax Case tamper board.

Use cases: remote switching for lighting, pumps, HVAC interlocks, door/gate control, integration with alarm scenarios, and other third‑party device control in commercial and professional installations.

Safety & installation notes: installation is intended for certified installers and professionals. Observe local wiring regulations and isolate mains circuits before connecting. Check compatibility with Hub Hybrid (2G) or Hub Hybrid (4G) and ensure Fibra line design follows Ajax recommendations. Refer to official datasheet and user manual for wiring diagrams, relay limits and installation details.

Downloads: Product page • Datasheet (PDF) • User manual (PDF)