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PMGB0126A rev.2 - 11/2006
ELECTRICAL WIRING
13.3.2. WIRE SIZE
Recomended minimum sizes for field provided wires:
Model Power Source Max. Current
Power Source Cable Size Transmitting Cable Size
EN60 335-1
MLFC
EN60 335-1
MLFC
All Indoor Units 1N~, 230V, 50Hz 5 A 0.75 mm² 0.5 mm²
0.75 mm² 0.5 mm²
RASC-5HNE
3N~, 400V, 50Hz
19.5 A 4 mm² 2 mm²
RASC-10HNE 33.2 A 6 mm² 5.5 mm²
The above wire sizes marked with are selected at the maximum current of the unit according to the European Standard,
EN60335-1.
The above wire sizes marked with are selected at the maximum current of the unit according to the wire, MLFC (Flame
Retardant Polyflex Wire) manufactured by HITACHI Cable Ltd. Japan.
In case that the power cables are connected in series, add each unit maximum current and select according to the next table.
Selection according to
EN60 335-1
Selection according to MLFC (at
cable Temp. Of 60 ºC)
Current i (A) Wire Size (mm²) Current i (A) Wire Size (mm²)
I ≤ 6 0.75 I ≤ 15 0.5
6 < i ≤ 10 1 15 < i ≤ 18 0.75
10 < i ≤ 16 1.5 18 < i ≤ 24 1.25
16 < i ≤ 25 2.5 24 < i ≤ 34 2
25 < i ≤ 32 4 34 < i ≤ 47 3.5
32 < i ≤ 40 6 47 < i ≤ 62 5.5
40 < i ≤ 63 10 62 < i ≤ 78 8
63 < i
78 < i ≤ 112 14
112
< i ≤ 147 22
In case that current exceeds 63 A do not connect cables in series
NOTE:
Follow local codes and regulations when selecting field wires, Circuit breakers and Earth Leakage breakers
Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord (code designation H05RN-F)
Select the main switches in according to the next table :
Model
Power Source Max. Current CB(A)
ELB
no. poles/A/mA
All Indoor Units 1N~, 230V, 50Hz 5 A 6
4/40/30RASC-5HNE
3N~, 400V, 50Hz
19.5 A 32
RASC-10HNE 33.2 A 32
ELB: Earthleakage Breaker
CB: Circuit Breaker
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