Salus KL04RF 4 Zone Wireless Wiring Centre Extension

Salus KL04RF 4 Zone Wireless Wiring Centre Extension

The Salus KL04RF is a wireless extension module designed to expand underfloor heating control by an additional four zones when used with the Salus KL08RF 8 Zone Wireless Wiring Centre. It is ideal for larger domestic and commercial underfloor heating systems requiring up to 12 zones, providing reliable control for thermostats and actuators via ZigBee wireless communication. The KL04RF is purpose-built for seamless integration and easy installation alongside your existing KL08RF, delivering flexible and scalable heating management.

Technical Information

• Product Type: Wireless 4 Zone Extension Module
• Power Supply: 230V AC, 50 Hz (requires independent supply)
• Maximum Load: 3A
• Outputs: 230V AC thermoelectric actuator terminals per zone (supports NO and NC types)
• Connection: Serial connector for direct communication with KL08RF wiring centre
• Wireless Protocol: ZigBee (operates within the Smart Home ecosystem when paired with KL08RF and gateway)
• Status Indication: Individual zone status LEDs, power and connection diodes
• Mounting: Wall or standard 35mm DIN rail compatible
• Dimensions: 163 mm (W) x 85 mm (H) x 65 mm (D)
• Ingress Protection: Indoor use only
• Compliance: EMC, Low Voltage, RED, and RoHS Directives
• Warranty: 5 years

Suitable For

• Extending Salus KL08RF Wireless Wiring Centres from 8 to up to 12 heating zones
• Large domestic underfloor heating systems
• Light commercial underfloor heating installations
• Scenarios requiring easy expansion as heating demands grow

Key Features

• Seamless integration—connects directly with KL08RF for system expansion
• Supports both Normally Open (NO) and Normally Closed (NC) actuators
• LED status indication for all zones and power
• Quick and safe wiring with push-fit cable terminals
• DIN rail or wall mounting for flexible installation
• Maintains all features of the host KL08RF, including compatibility with the Salus Smart Home range and ZigBee ecosystem

Package Contents

• Salus KL04RF 4 Zone Wireless Wiring Centre Extension
• Serial connection cable (for linking to KL08RF)
• Mounting accessories (DIN rail clips/screws)
• Installation and wiring instructions

Please note: Delivery times may vary depending on location, with specific details outlined below.

Standard Delivery

UK Mainland 

• Delivery Time: 2–4 working days
• Free Delivery on all orders

Express Delivery

UK Mainland

• Delivery Time: 1–3 working days
• Delivery fee of £15

Channel Islands

• Postcodes Covered: GY*, IM*, JE* 
• Minimum Order: £50
• Delivery Fee: £70

Northern Ireland, Offshore Territories & Scottish Islands 

• Postcodes Covered: BT*, HS*, KW, ZE
• Minimum Order: £50
• Delivery Fee: £35

Same Day Delivery 

• Eligible Postcodes:
  E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW*
• Minimum Order: £50
• Same Day Delivery Fee: £60
• Special Requests or Locations:
  For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.

Collections

Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.

Collection address: 284 Water Rd, Unit 9, London, HA0 1HX