Power supply

Operating voltage

AC/DC 24 V

Power consumption

Max. 5 VA / 3 W

Standby power consumption

1.2 VA / 0.5 W

External supply line protection (EU)

Circuit breaker max. 10 A

Characteristic B, C, D as per EN 60898

or

Power source with max. 10 A current limitation

Wiring

Diameter
Power, input, and output (L1, Q1, Q2, Q3)
SELV signal (G, G0, M, Y10, Y20, M, D1)
Wire


1.0…1.5 mm2
0.5…1.5 mm2
Solid or prepared stranded wires

Output

1-/3-speed fan
Type
Voltage
Maximum current

Q1…Q3
On/Off
AC 24...230 V
5(2) A

ECM fan
Type
Voltage
Maximum current

Y20
DC
DC 0...10 V
±5 mA

Valve output
Voltage
Maximum current

Y10, Y20
DC 0...10 V
±1 mA

CAUTION

If fans must be connected in parallel, connect one fan directly,
for additional fans, one relay for each speed.

Digital input

D1-M

     Operating action

Selectable (NO/NC)

     Contact sensing

DC 0…5 V, max. 5 mA

     Insulation against mains power

SELV

Operating data

Hysteresis

- Heating mode (P43)

- Cooling mode (P44)

 

0.5...6 K (factory setting: 2 K)

0.5...6 K (factory setting: 1 K)

P-band Xp

- Heating mode (P43)

- Cooling mode (P44)

 

0.5...6 K (factory setting: 2 K)

0.5...6 K (factory setting: 1 K)

Setpoint setting range

- Comfort mode (P20, P21)

- Economy mode (P22, P23)

- Protection mode (P50, P51)

 

5...40 °C

Off, 5...40 °C

Off, 5...40 °C

Built-in room temperature sensor

- Measuring range

- Accuracy at 25 °C

- Temperature calibration range

 

0…50 °C

< ±0.5 K

- 5.0...+5.0 K

Settings and display resolution

- Temperature setpoints

- Current temperature value displayed

 

0.5 °C

0.5 °C

Ambient conditions and protection classification

Classification as per EN 60730

Function of automatic control devices
Degree of pollution
Overvoltage category
Action type
Rated impulse voltage
Maximum altitude
Software class

 

Type 1
2
III
1 as per EN 60730-1
4 kV as per EN 60730-1
3000 m as per EN 60730-1
A as per EN 60730-1

Classification of protection against electric shock

Device suited for use with equipment of protection class II.

Degree of protection of housing to EN 60529 (after mounting in position)

Room automation station
With terminal cover

 

IP30
IP30

Climatic ambient conditions

- Storage as per EN 60721-3-1
Temperature range
Humidity range

- Transport (packaged for transport) as per EN 60721‑3‑2
Temperature range
Humidity range

- Operation as per EN 60721-3-3 1)
Temperature range
Humidity range

 


-5...+50 °C
5...95 % r.h.


-25...+70 °C
5...95 % r.h.


0...50 °C
5...95 % r.h.

Mechanical ambient conditions

Storage as per EN 60721-3-1
Transport as per EN 60721-3-2
Operation as per EN 60721-3-3

 

Class 1M2
Class 2M2
Class 3M2

1) No condensation permitted.

Standards, directives and approvals

Electromagnetic compatibility

For residential, commercial environments

EU conformity (CE)

A5W02990078A *)

RCM

A5W02990081A *)

UKCA

A5W02990079A *)

REACH

Regulation (EC) No 1907/2006 Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)

RoHS

Directive 2011/65/EU restriction of the use of certain hazardous substances in electronic equipment

Environmental compatibility

The product environmental declaration (A5W02938711A *) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal).

General

Weight without/with package

  • RDF440
  • RDF440-BK

 

  • 152.1 g / 246.5 g
  • 151.6 g / 245.7 g

Materials

  • Control unit
  • Mounting plate

 

  • PC
  • PC

Colors

  • Frame
  • Screen

 

  • White RAL 9016
  • Black RAL 9005

Housing flammability class as per UL94

V-0

*) The documents can be downloaded from http://siemens.com/bt/download.