8 × latching (polarized) relays.
Retain their state even during power off.

The LRY8 module features 8 × 30V DC 1A latching relays. Perfect for low voltage relay control applications.

Simple to use.
Open protocol.

As with all CommandFusion products, our communication protocol is open and available to anyone. Relay modules have very simple commands for setting the relay states on, off, toggling and pulsing. » View CFLink Protocol Docs

Need more relay ports?
Just get another module.

The beauty of the modular controllers is their flexibility. Need more of a specific port? Get another module and plug it in.

Secure terminals.
Reliable connections.

The LRY8 module uses spring terminal blocks for connections. This results in simple to insert, yet secure wiring in any installation.


The LRY8 module features 8 low voltage (30V DC, 1A) relay ports, and comes with spring terminals for quick and easy, yet secure connections to external relay-controlled devices. Plug it into a modular controller to add relay control ports to your system.

Power On States

Each relay port can be configured to be in open, closed or resume last state on power up. And because the relays are latching (polarized), they will stay in their open or closed state even when power is lost.

Extended Functionality

Most relay control systems out there allow you to set relays on or off, and require complex programming on a control processor to perform anything else. Our relay control protocol includes additional functionality such as a simple toggle command (so that you don't have to keep track of the relay state for basic toggle actions) and a pulsing command to pulse the relay closed for a time period, then opening again (of course, the time period is customisable as part of the protocol). Relay control has never been so easy.

GalleryHigh res photos in downloads section

Technical SpecificationsSee hardware documentation for more details

Module Connector 24-pin connector to connect to modular controller unit
Relay 1-8 4 x detachable 4-pin 3.50mm terminal block consisting of 8 channels of relay ports.
Wire range: 24-16 AWG
Relay Rating: 30V DC 1A
Top Panel
Clip Secures and releases the module from the modular controller unit.
Label Model and serial number information.
Power Consumption Power usage 600mW maximum, powered by modular controller DIN-MOD4 or MOD4 (not included)
Enclosure Polycarbonate with dark grey matte finish
Height 32.8mm (1.29in)
Width 40mm (1.57in)
Depth 68mm (2.68in)
Weight 0.08kg (0.18lbs), Shipping 0.2kg (0.44lbs)
Environmental & Regulatory
Temperature 5°C to 45°C (41°F to 113°F)
Humidity 20% to 85% RH, non-condensing
Certification FCC, CE, C-Tick
Warranty 5 years limited warranty

Downloads & Documentation


Quick Reference Guide
Modules Quick Reference Guide includes details for all of our modules, such as pinout diagrams and general connectivity details.

Product Spec Sheet
Single page specification sheet.

Application Diagrams

Residential Application Diagram - Whole House
Residential - Whole House
Typical whole home automation diagram

download PDF
Commercial Application Diagram - Boardroom
Commercial - Board Room
Typical board room automation diagram.

download PDF

High Resolution Photos

Coming Soon...