Siemens Thermostat with LCD, On/Off or 3-Position Output

RDF300

$164.00
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Semi-Flush Mount Room Thermostat.  Suitable for 2 or 4 pipe fan coil units or single stage DX cooling and heating.

  • Maintain room temperature via built-in temperature sensor or external room temperature / return air temperature sensor
  • Automatic or manual changeover between heating and cooling mode
  • Select applications via DIP switches
  • Select operating mode via the operating mode button on the controller
  • Single or 3-speed fan control (automatic or manual)
  • Display current room temperature or setpoint in °C and/or °F
  • Minimum and maximum setpoint limitation
  • Keypad lock (automatic and manual)
  • Two multifunctional inputs, freely selectable for:
    • Operating mode switchover contact (key card)
    • Automatic heating/cooling changeover sensor
    • External room temperature or return air temperature
    • Dewpoint sensor
    • Electrical heater enable
    • Alarm input

Attribute

Value

Operating voltage

AC 230 V

Frequency

50/60 Hz

Power consumption

8 VA

Positioning signal

2-position, 3-position

Control algorithm

2-point / PI

Ambient temperature, operation

0...50 °C

Setpoint setting range

5...40 °C

Measuring range, temperature

0…49 °C

Switching differential

0.5…6 K

Analog inputs

External room / return air temperature, Heat / Cool changeover, Operation mode changeover, Window contact on/off, Dewpoint monitor, Electrical heater enabled

Analog inputs, number

2

Analog input, signal

NTC 3k , Switch

Relay outputs

Fan: N.O. contacts, non-floating, Valve: N.O. contacts, non-floating

Relay outputs, number

5

Relay output, switching voltage

AC 230 V

Relay output, switching current

5 (2) A

Mounting

Flush-mounting with recessed rectangular conduit box
Fixing center 60.3 mm (BS4662)

Type of fixing

Recessed rectangular conduit box BS4662 (ARG71) with fixing centres of 60.3 mm

Degree of protection

IP30

Dimensions (W x H x D)

86 x 86 x 57 mm

(SIE-THE-RDF300)

SKU SIE-THE-RDF300
Brand Siemens
Shipping Weight 0.2200kg
Unit Of Measure ea

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