Siemens RDF870MB On-Off HVAC Control, 10 A, 230V, 60 °C, -25 °C

View all Thermostats

Subtotal (1 unit)*

£188.38

(exc. VAT)

£226.06

(inc. VAT)

Add to Basket
Select or type quantity
Stocked by manufacturer
  • Ready to ship from 11 May 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£188.38

*price indicative

RS Stock No.:
639-142
Mfr. Part No.:
RDF870MB / S55770-T408
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

HVAC Control

Sub Type

Thermostat

Switch Configuration

On-Off

Supply Voltage

230V

Maximum Operating Temperature

60°C

Contact Current

10A

Minimum Operating Temperature

-25°C

Standards/Approvals

EU, RCM, IEC 60721-3-3, CE

Series

RDF870MB

Temperature Setting Range

35 °C

COO (Country of Origin):
CN
The Siemens Room Controller is a flush-mounted, touch-enabled device designed for advanced indoor air quality and ventilation management. It supports MODBUS communication and integrates sensors for PM2.5 and CO₂, making it ideal for smart buildings and energy-efficient HVAC systems. This controller is perfect for modern ventilation setups where air quality, energy efficiency, and user experience are top priorities.

RS485 Modbus RTU slave mode

Backlit display

UL94 V0 flammability rating

Related links