Siemens RAB21 Controller

Technical design:

Key features of the RAB21.. fan coil room thermostat:
• Two-position control
• Gas-filled diaphragm

Technical data:
Switching capacity
Voltage: AC 24…250 V
Current: 0.2…6 (2) A
Frequency: 50 or 60 Hz
No internal fuse
External preliminary protection with max. C 10 A circuit breaker in the supply line required under all
circumstances
Screw terminals for 2 x 1.5 mm2 (min. 0.5 mm2)
Switching differential SD ≤1 K
Setpoint setting range 8…30 °C .
Weight 0.14 kg
Colour white

Description

  • Heating or cooling applications
  • Selector for manual 3-speed fan operation
  • Changeover function, heating or cooling (with external automatic aquastat)
  • Manual fan operation or automatic fan operation parallel with cooling / heating mode can be configured inside the unit