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title: "relayCUE-8 A&E Specification"
canonical: "https://docs.cuesystem.com/space/AES/2034565121/relayCUE-8%20A%26E%20Specification"
format: markdown
---
The **relayCUE-8** is an eight-channel relay switching unit designed for integration into professional control systems for lighting, shading, projection screens, and AC/DC motors. Applications include centralised control of lighting circuits, motorised blinds, and other electrical loads in conference rooms, classrooms, and smart building systems.

Each channel supports resistive loads up to 230 V / 10 A and provides potential-free switching outputs. The unit includes **8 digital inputs** for external switches, enabling direct control of dedicated relay circuits. Inputs can be configured for various functions such as toggle, delayed on/off, pulse, and motor control sequences.

Communication is based on the **RS-485 serial standard**, ensuring reliable integration with automation controllers. Basic parameters can be set via front-panel buttons, while advanced configuration is performed through the serial interface. The front panel features LED indicators for power, communication activity, and relay status, as well as test buttons for manual operation.

The relayCUE-8 is housed in a DIN rail-compatible plastic enclosure with dimensions **159 × 90 × 58 mm** (9 DIN modules) for easy installation in electrical switchboards. Power supply options include 110 or 230 VAC, 50/60 Hz, with a typical consumption of 6 W.