RDJ100Room thermostat with 24-hour time switch and large LCD
The RDJ100 is a room thermostat from Siemens that is easy to operate and can be set to different temperatures for different times of the day. It has a large LCD display and can be powered by batteries or AC power. The RDJ100 can be used with a variety of heating and cooling systems, including furnaces, boilers, air conditioners, heat pumps, and geothermal systems. It is easy to install and use, and it can help you save money on your heating and cooling bills.

Mains independent, time programming, battery powered electronic room thermostat with PID out control.
  • With digital 24-hour time program
  • Easy operation by large setting knob, large display and sliders
  • Color of housing front: signal white RAL9003
  • Color of baseplate: light gray RAL7035


Operating modes:
  • Automatic operation with up to 2 heating periods per day
  • Continuous Comfort
  • Continuous Economy
  • Frost Protection

Technical Specifications
Operating voltage
DC 3 V
Voltage supply
Mignon (2xAA)
Battery life
1 year
Power consumption
0.0003 W
Setpoint setting range
5…30 °C
Connection cable
2-wire
Switching differential
1 K
Relay outputs
Change-over contact , Potential-free
Relay outputs, number
1
Relay output, switching voltage
AC 24…250 V
Relay output, switching current
0.2…5 (2) A
Type of fixing
Wall mounting with screws
Degree of protection
IP20
Dimensions (W x H x D)
120 x 90 x 26.9 mm