7. Function/Operation
When the temperature exceeds/falls below
the setpoint temperature, the thermostat
switches one or more fans on/off.
The setpoint temperature can be set using
the rotary knob [2].
The differential gap between the switch-on
and switch-off temperature is 1.5 K.
8. Technical data
Rating plate on the unit.
Rated voltage
Power frequency
Maximum loading
(inductive load)
250 V AC, terminal 1-3
250 V AC, terminal 1-2
400 V AC, terminal 1-3
400 V AC, terminal 1-2
Maximum loading
(ohmic load)
250 V AC, terminal 1-3
250 V AC, terminal 1-2
400 V AC, terminal 1-3
400 V AC, terminal 1-2
Maximum switching
current
Differential gap
Degree of protection
Protection class
Type of installation
Weight
Dimensions (WxHxD)
9. Environmental conditions and
operating limits
Ambient temperature:
Temperature setting range
250 V AC /
400 V 3 Ph
50/60 Hz
4 A
4 A
4 A
2 A
16 A
8 A
10 A
4 A
cos ϕ ≥ 0,8
1.5 K
IP 54
I
Surface-
mounted
0.3 kg
115x150x68 mm
max. + 50° C
0 to +50 °C
7. Function/Operation │ UK
10. Storage
Store unit exclusively in a dry location (-20 to
+50 °C).
11. Mounting
11.1 Mounting instructions
NOTICE
Incorrect measured values can result
from unsuitable installation location.
Locate the temperature sensor [7]
correctly.
Avoid disturbing influences.
Avoid exposure to direct sunlight.
Do not use in an area prone to draughts,
hot or cold air, e.g. near stove, fridge,
radiator, refrigerator, air intake, disk
valve/internal grille, etc..
Do not install in a unit with other heat-
generating devices, e.g. a dimmer switch.
● Only install unit onto a dry, level surface.
Any installation position can be selected.
● Only connect the unit to a permanently
wired electrical installation after it has
been completely mounted.
● The unit may only be operated using the
voltage and frequency shown on the rating
plate.
● Be sure to observe the relevant regula-
tions for electrical installation; in Germany
this is particularly VDE 0100, with the
corresponding parts.
● Connection area for the PG screw connec-
tion [3] is suitable for connection cables
with an external diameter of 6 to 12 mm.
● Connection terminals for cable with a max.
cross section of 2.5 mm².
● A mains isolation device with contact
openings of at least 3 mm at each pole is
mandatory.
● The degree of protection is only
guaranteed if installation is undertaken
correctly and if the cables are correctly fed
into the housing.
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