Aico Ei128RBU Hardwired Relay Module With Battery Backup

Protect Your Home Beyond Power Failures

The Aico Ei128RBU runs on 230V AC mains power with built-in tamper-proof lithium cells that provide up to 2 months of operation without power, ensuring your alarm system keeps working even when mains fails. Unlike standard relay modules that stop functioning during power outages, this hardwired relay module guarantees continuous protection during emergencies when you need it most.

Seamless Integration with Your Alarm System

This module works with any combination of 3000, 2110e, 160e, 140RC or 260RC Series alarms, up to 12 units total. Whether you're expanding an existing system or building a new one, the Ei128RBU connects directly to your smoke, heat, and carbon monoxide detectors without compatibility issues. The module is designed to fit underneath any smoke or heat alarm, with a supplied cover if you need remote siting.

Control External Devices Automatically When Alarms Trigger

Upon receiving a signal from your alarm system, the relay contacts activate, sending a signal to connected devices such as warden call systems or panel systems. This means you can automatically trigger door closers, extractors, strobes, lights, or any other safety device the moment a fire is detected—critical seconds matter in emergencies.

Flexible Configuration for Any Application

The volt-free contacts are rated up to 240V AC / 5 Amps, making it suitable for a wide range of AC or DC voltages. Choose between continuous or pulse operation through a manual switch—pulse mode automatically resets the relay contacts after 5 seconds, giving you control over how your connected devices respond.

Installation Designed for Your Convenience

The module includes additional trunking knockouts for both surface and recess wiring, and comes with a 4-way connector block for straightforward wiring. No complex configuration needed—professional installers and experienced homeowners appreciate how easily this integrates into existing systems.

Built to Last Longer Than Expected

The rechargeable lithium cells are designed to have a 10-year life and outlast the module itself. This means you're not replacing batteries constantly or worrying about degraded backup power over time—your protection stays reliable for years.

The Aico Ei128RBU isn't just a relay module; it's insurance that your alarm system remains fully operational during power emergencies while automatically controlling all your safety devices the moment danger is detected.