Danfoss RET24, RET230 Data sheet
Datasheet
ErP
1
RET24 and RET230
Electronic Room Thermostats
Application
The RET230 and RET24 are a range of electronic room
thermostats oering improved thermal performance and
status indication compared to that of electro-mechanical
equivalents.
The range comprises of mains voltage versions, RET230, and
low voltage 24V versions, RET24.
For ease of mounting, RET is based upon a wallplate
construction which is tted and wired before the thermostat
is mounted.
Additional features available in the RET range include:
l Electronic accelerator heater
l LED status indication
l Night set-back option
l Voltage free outputs
Please refer to the table below for details.
Dimensions
3
86 78
85
8 42
Ordering Codes and Data
RET Electronic Room Thermostats
Typ e Code No. Operating Voltage
RET24 087N701400 24 Vac
RET24VF 087N701600 24 Vac
RET24NSB 087N701800 24 Vac
RET230 087N700400 220/240 Vac
RET230L 087N700600 220/240 Vac
RET230VF 087N700800 220/240 Vac
RET230VF2 087N700801 220/240 Vac
RET230NSB 087N701000 220/240 Vac
(1) ‘Power On’ indicator is lit when power is applied to thermostat (left hand LED).
(2) ‘Calling’ indicator is lit when thermostat relay is closed and calling for heat (right hand LED).
(3) In Night Set-Back version, ‘Power On’ LED changes colour during night set-back period (left hand LED).
(4) In RET 24NSB mode, left hand LED is lit during night set-back period.
Specications RET24 RET24VF/RET24NSB RET230F RET230C RET230/RET230L RET230VF
Switching Dierential < 1K < 1K < 1K < 1K < 1K < 1K
Temperature Range 5-30°C 5-30°C 5-10°C 5-30°C 5-30°C 5-30°C
Operating Voltage 24 Vac 24 Vac 220/240 Vac 220/240 Vac 220/240 Vac 220/240 Vac
Switch Type (common linked int.) SPDT - SPST SPST SPDT -
Switch Type (voltage free contacts) - SPDT - - - SPDT
Contact Current Rating 3(1)A 3(1)A 3(1)A 3(1)A 3(1)A 3(1)A
Locking and Limiting Feature Yes Yes Yes Yes Ye s Yes
Dimensions (mm) (h x w x d) 86 x 85 x 42 86 x 85 x 42 86 x 85 x 42 86 x 85 x 42 86 x 85 x 42 86 x 85 x 42
Electronic
Accelerator
l
l
l
l
l
l
l
l
Night
Set-back
l 5K l (4) Night set-back is achieved using external time control
l 5K l (3) l (3) Night set-back is achieved using external time control
LED Status Indicators
Power On (1) Stat Calling (2)
l (3)
l (3) Volt free contacts
l (3)
l (3) l (3)
l (3)
l (3) l (3)
Comment
Volt free contacts
(2)
/RET230NSB
ErP Class
Product
Class
ERP Class
The products represented within this document are classied according to, and allow completion of, the Energy Related Product
(ErP) Directive System Package che and the ErP system data label. ErP Labelling obligation is applicable from 26th September 2015.
ErP Class Product Function and ErP Description Additional eciency gain
I
On/Off Room Thermostat
A room thermostat that controls the on/o operation of a heater.
1%
1
220/240V
24V
24V
Datasheet
RET24 and RET230
RET230
Typical Application
Multiple zones RET230’s NSB controlled by one timeswitch.
Timeswitch with volt free contacts
L
N
220/
N
240V
L
RET230VF, RET230VF2
Electronics
L
N
N
L
RET230NSB
Electronics
L 1
N
°C
2
C
NC
}
Voltage Free
°C
2
C
NC
}
Voltage Free
RET230, RET230L, RET230C 1)
°C
°C
3
4
NO
220/240V
°C
3
4
NO
Electronics
L
N
L
N
1) RET230C has SPST contacts.
RET230NSB
Electronics
L 1
N
2
C
°C
3
4
220/240V
°C
°C
3
4
NO
NC
}
Voltage Free
RET230NSB
N
N
L
RET230NSB
N
Electronics
L 1
Electronics
L 1
°C
3
2
C
NC
}
Voltage Free
°C
3
2
C
NC
}
Voltage Free
°C
4
NO
°C
4
NO
Typical Application
Multiple zones RET24’s NSB controlled by one timeswitch.
Timeswitch with volt free contacts
L
N
N
0V
24V
L
Danfoss Ltd.
Ampthill Road
Bedford MK42 9ER
Tel: 01234 364621
Fax: 01234 219705
Email: ukheating@danfoss.com
Website: www.heating.danfoss.co.uk
0V
RET24VF
A
L
N
RET24NSB
Electronics
A
Electronics
B
B C
°C
2
}
Voltage Free
°C
3
2
C
NC
}
Voltage Free
RET24
°C
°C
3
4
°C
°C
3
4
NO
24V
0V
L
N
RET24NSB
A
Electronics
B
A
Electronics
B C
2
C
NC
°C
3
4
°C
4
NO
}
Voltage Free
0V
RET24NSB
N
L
RET24NSB
Electronics
B C
A
Electronics
B C
A
°C
2
C
NC
}
Voltage Free
°C
3
2
C
NC
}
Voltage Free
°C
3
4
NO
°C
4
NO
Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already
on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
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© Danfoss HS | 09/2015 | 294v10 VDRBW402
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