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MKF / MKFT (E5) 06/2020 page 37/176
For the installation of the voltage and frequency changer behind the chamber, provide a rear wall dis-
tance of the chamber of approx. 1 m / 3.3 ft.
If possible, fix the voltage and frequency changer at the chamber. For this purpose, an Allen key size 4 is
required. Connect the slots at the end of the chassis with two M6 screws to the threads provided below
on the rear panel of the chamber (see Figure 15).
NOTICE
Danger of overheating due to lack of ventilation.
Damage to the voltage and frequency changer.
∅ Do NOT install the voltage and frequency changer in unventilated recesses.
Ensure sufficient ventilation for dispersal of the heat.
The voltage and frequency changer is equipped with four castors. The rear castors can be easily locked
via the attached brakes
4.8 Electrical connection
4.8.1 Information on connecting the alternating climate chamber
The chambers are supplied ready for connection.
MKF 56: The chambers come with an IEC connector plug. They are equipped with an internal overload
release against excess-current.
MKF/MKFT 115,240,720: The chambers come with a fixed power connection cable of at least 1800 mm /
70.87 in in length. They are equipped with three internal overload releases against excess-current.
Model Power plug
Nominal voltage +/- 10% at the
indicated power frequency
Current
type
Chamber
fuse
MKF 56 (230V)
IEC connector plug
(grounded plug)
230 V at 50 Hz
1 N~
16 Amp
internal
MKF 56 (240V)
IEC connector plug
(grounded plug)
240 V at 60 Hz 2~
16 Amp
internal
MKF 115
MKFT 115
MKF 240
CEE plug 5-poles
16 Amp
400 V at 50 Hz
3 N~
16 Amp
3 x internal
MKFT 240
CEE plug 5-poles
16 Amp
400 V at 50 Hz 3 N~
16 Amp
3 x internal
MKF 720
MKFT 720
CEE plug 5-poles
32 Amp
400 V at 50 Hz 3 N~
25 Amp
3 x internal
• The domestic socket must also provide a protective conductor. Make sure that the connection of the
protective conductor of the domestic installations to the chamber’s protective conductor meets the lat-
est technology. The protective conductors of the socket and plug must be compatible!
DANGER
Electrical hazard due to missing protective conductor connection.
Deadly electric shock.
Make sure that the chamber’s power plug and the power socket match and secure-
ly connect the electrical protective conductors of the chamber and the house instal-
lation.
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