Salus CB500 5 Zone Wiring Centre

Salus CB500 5 Zone Wiring Centre

The Salus CB500 is a robust, hard-wired wiring centre designed for precise and flexible control of underfloor heating or cooling systems across up to 5 independent zones. Its integrated module handles heat and cool sources, supporting smart switching between heating and cooling modes as required. The CB500 offers advanced, reliable control for a wide range of installations and is expandable to accommodate larger projects by adding CB500X extension modules (up to 15 zones in total).

Technical Information

• Product Type: 5 Zone Wiring Centre (expandable to 15 zones with CB500X)
• Power Supply: 230V AC, 50 Hz
• Total Load (Max): 7 (2) A
• Relay Load (Pump/Boiler/Chiller): Max 5 (2) A
• Output Voltage: 230V (Pump/Actuators), Volt-free outputs for boiler/heat pump/chiller
• Inputs: Heating/Cooling mode change (volt-free), Dew point sensor
• Compatible Actuators: Normally-Closed (NC) as standard, also supports Normally-Open (NO)
• Thermostat Supply: Power thermostats (230V) directly from the unit
• Mounting: Surface or DIN rail
• Connections: Spring-clamp terminals for quick, secure wiring
• Maximum Number of Actuators: 20 (6/2/4/4/4 per zone)
• Maximum Number of Room Thermostats: 5
• Cooling Mode Function: Yes, via dedicated terminal
• Selectable Delay-On: For pump and boiler relays
• Ingress Protection: Indoor use only
• Warranty: 5 years
• Dimensions: 270 mm (W) x 110 mm (H) x 55 mm (D)

Suitable For

• Controlling up to five underfloor heating or cooling zones, with simple expansion to 15 zones via CB500X modules
• Managing heat pumps, boilers, chillers, and zone actuators in domestic or small commercial buildings
• Projects requiring easy switching between heating and cooling modes
• Professional or DIY installations needing fast, secure wiring and clear terminal layout

Key Features

• Expandability: Add up to two CB500X extensions for a maximum 15-zone system
• Spring-clamp wiring for quick and reliable installation
• Direct supply to 230V thermostats, reducing the need for separate power sources
• Multiple voltage-free outputs allow flexible control of heat/cool sources
• Dedicated outputs for pump and actuator control
• Supports both surface and DIN rail mounting
• Designed for use with NC type actuators, with NO compatibility

Package Contents

• Salus CB500 5 Zone Wiring Centre
• Mounting accessories
• Quick-install guide / wiring diagram