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Mini Chiller
16.2 Specification of Power Supply Wire and Leakage Switch
Power cable specifications and Leakage switch types in the following list are recommended.
Model
HLR8Pd/Na-K
HLR10Pd/Na-K
HLR12Pd/Na-M
HLR14Pd/Na-M
Notes:
(a) The leakage switch is necessary for additional installation. If circuit breakers with leakage protection are in use,
action response time must be less than 0.1 second, leakage circuit must be 30mA.
(b) The above selected power cable diameters are determined based on assumption of distance from the distribution
cabinet to the unit less than 75m. If cables are laid out in a distance of 75m to 150m, diameter of power cable must
be increased to a further grade.
(c) The power supply must be of rated voltage of the unit and special electrical line for air-conditioning.
(d) All electrical installation shall be carried out by professional technicians in accordance with the local laws and
regulations.
(e) Ensure safe grounding and the grounding wire shall be connected with the special grounding equipment of the
building and must be installed by professional technicians.
(f) The specifications of the breaker and power cable listed in the table above are determined based on the maximum
power (maximum amps) of the unit.
(g) The specifications of the power cable listed in the table above are applied to the conduit-guarded multi-wire copper
cable (like, YJV XLPE insulated power cable) used at 40°C and resistible to 90°C(see IEC 60364-5-52). If the
working condition changes, they should be modified according to the related national standard.
(h) The specifications of the breaker listed in the table above are applied to the breaker with the working temperature at
40°C. If the working condition changes, they should be modified according to the related national standard.
Leakage
Power Supply
V,Ph,Hz
220-240V,1Ph,50Hz
380-415V,3Ph,50Hz
Minimum Sectional
Switch
Area of Earth Wire
(A)
(mm
20
2.1
20
2.1
13
1.3
13
1.3
25
Minimum Sectional
Area of Power Supply
Wire
2
)
(mm
3×2.1
3×2.1
5×1.3
5×1.3
eries
2
)
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