Rittal SK 3201.200 Assembly And Operating Instructions Manual - 10 Electrical Connection
12
Rittal Thermoelectric Cooler assembly and operating instructions
10 Electrical connection
GB
10 Electrical connection
10.1 Connection data
– The mains voltage and frequency must corres-
pond to the values stated on the rating plate.
– An all-range fuse specified on the rating plate must
be connected upstream as line and device pro-
tection.
– No additional temperature control is allowed to be
connected upstream of the cooling unit on the
supply side.
– An isolating device that ensures a contact opening
of at least 3 mm in switched-off state must be
connected upstream of the cooling unit.
– The mains connection must ensure low-noise
potential equalisation.
Fig. 16:
Rating plate
The Rittal Thermoelectric Cooler is available as
version with integrated multi-range power pack
(100 – 240 V) and as 24 V variant (without integrated
power pack).
Fig. 17:
SK 3201.200 connection diagram,
with integrated power pack
Fig. 18:
SK 3201.300 connection diagram,
without integrated power pack
Legend
A1
Power PCB
A2
Power pack
B1
Temperature sensor, internal temperature
B2
Ambient temperature sensor
B3
Temperature sensor, power pack
H1/H2
Status and function display
M2.1
Condenser fan 1
M2.2
Condenser fan 2
M4
Evaporator fan
TE
Thermoelectric elements
X1
Terminal strip
X2
USB connection
X3
Optional interface
Danger!
Warning of a dangerous electrical
voltage.
Danger to life and health in case of
non-observance!
M
M
M
M4
MS1
3
2
1
2
1
3
Serial
A1
TE
1 2
Power
PE
+
–
M2.2
1
3
2
M4
3
2
1
X1
1
PE
2
3
M2.2
4
M2.1
1
3
2
M2.1
4
4
L1
N
PE
TE
~ –
A2
PE
Mains
X2
X3
Alarm
NTC_O YELLOW
NTC_I RED
2
B2
2
B1
2
B3
NTC_N WHITE
H1
H2
M4
NTC_O YELLOW
NTC_I RED
MS1
3
2
1
2
1
3
Serial
A1
TE
1 2
Power
PE
+
–
M2.2
1
3
2
M4
3
2
1
PE
X1
Mains
1
PE
2
3
X2
X3
2
B2
2
B1
M2.2
4
M2.1
1
3
2
M2.1
M
4
M
M
4
+
–
PE
TE
Alarm
H1
H2