Notes
Enclosure heaters with fans
Model No. SK 110 V
3105.210
3105.220
3105.230
Model No. SK 230 V
3105.180
3105.190
3105.200
Dimensions mm
W
H
D
142
170
101
142
170
101
142
170
101
Hole distance
mm
124
Rated operating voltage Volt, Hz
110 or 240 V, 50/60
Continuous thermal output
at T
u
= 10
˚
C
250 W
1)
400
W
1)
800
W
1)
Pre-fuse gG for 110 V
4 A
6 A
10 A
Pre-fuse gG for 230 V
4 A
6 A
6 A
1)
Output with fan.
Special voltages available on request. We reserve the right to make technical modifications.
A
Enclosure heaters without fans
Model No. SK
3105.310
3105.320
3105.330
3105.340
3105.350
3105.360
3105.370
Dimensions mm
W
H
D
45
120
46
45
120
46
64
155
56
64
155
56
64
230
56
90
165
75
90
180
75
Hole distance
mm
42
60
Rated operating
voltage Volt, Hz
110 – 240 V, 50/60
Continuous thermal
output at T
u
= 10
˚
C
8 – 10 W
18 – 20 W
23 – 30 W
49 – 50 W
63 – 75 W
86 – 100 W 130 – 150 W
Pre-fuse T
2 A
4 A
A
1. Technical Data
2. Mounting
The panel heater is fitted vertically, i.e. with
the connection terminal or fan facing down-
wards. To permit the required convection, a
minimum clearance to the adjacent compo-
nents must be observed. A safety clearance
of at least 300 mm must be left above the
heater in the case of heaters with fans, and
100 mm for heaters without fans. (For both
a thermal safety clearance to the sides of
60 mm and 100 mm at the bottom is
required).
If these clearances are observed, the ambi-
ent temperature does not rise above 65˚C.
2.1 Snap-type fastening onto a 35 mm
support rail DIN EN 50 022 (Fig. 1.1).
2.2 Screw fastening onto the mounting plate
(Fig. 1.2).
It should be ensured that the heater and
connection cables are mounted firmly and
securely.
Electric cables must not touch the body of the
heater fan and must not be routed directly
past the hot air outlet. The heater must
not be mounted in the vicinity of flammable
materials.
RITTAL enclosure heater assembly instructions
EN
5
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