11
Cross-sectional area of Wire for Main Power Supply and On/Off Capacities
Model
Power Supply
Minimum Wire Cross-sectional area (mm
2
)
Breaker for
Wiring*1
Breaker for Current Leakage
Main Cable
Branch
Ground
Outdoor
Unit
P125, 140V
~/N 230 V 50 Hz
5.5(6)
–
5.5(6)
32 A
32 A 30 mA 0.1 sec. or less
P125, 140Y
3N~ 415 V 50 Hz
1.5
–
1.5
16 A
16 A 30 mA 0.1 sec. or less
*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
6. Electrical work
6.4. Wiring of main power supply and equipment capacity
Schematic Drawing of Wiring (Example) (Fig. 6-4)
A
: Switch (Breakers for Wiring and Current Leakage)
B
: Outdoor Unit
C
: Pull Box
D
: Indoor Unit
Fig. 6-4
A
B
~/N 230 V 50 Hz
D
D
C
A
D
D
~/N 230 V
■
MA Remote Controller
Fig. 6-2
Fig. 6-3
■
PUMY-P125, P140VHMS
A
B
C
E
D
TB7
TB3
IC
(51)
TB5
RC
(01)
IC
TB5
(03)
IC
TB5
(02)
IC
TB5
(04)
IC
TB5
(05)
IC
TB5
(07)
IC
TB5
(06)
L
2
L
1
(101)
RC
(105)
RC
(104)
RC
(155)
OC
TB7
(53)
OC
3
Power Supply
Unit
System
controller
L
3
L
6
L
7
L
4
L
5
2
4
1
A
: Group
B
: Group
C
: Group
D
: Shielded Wire
E
F
: Sub Remote Controller
F
: Screw on the electrical component box
( ): Address
r
r
r
r
M1 M2 S M1 M2 S
M1 M2 S
M1 M2 S
A B
A B
A B
M1 M2 S
M1 M2 S
M1 M2 S
S
M1 M2 S
TB3
M1 M2 S
M1 M2 S
A B
M1 M2
M1 M2 S
M1 M2 S
F
A
B
C
E
D
TB7
IC
(51)
TB15
TB15
TB15
MA
(01)
IC
TB5
(03)
IC
TB5
TB5
(02)
IC
TB5
(04)
IC
(05)
IC
(07)
IC
(06)
L
1
MA
MA
MA
OC
(53)
OC
1
m
4
3
Power Supply
Unit
L
3
L
7
L
4
m
3
1
1
2
2
TB3
A
: Group
B
: Group
C
: Group
D
: Shielded Wire
E
: Sub Remote Controller
( ): Address
m
m
m
m
m
m
M1 M2 S M1 M2 S
TB7
M1 M2 S
M1 M2 S
TB3
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
A B
1 2
1 2
M1 M2 S
1 2
1 2
TB15
TB5
M1 M2 S
1 2
TB15
TB5
M1 M2 S
1 2
A B
A B
TB15
TB5
M1 M2 S
1 2
TB15
A B
L
2
L
6
System
controller
F
F
F
: Screw on the electrical component box
A
B
3N~ 415 V 50 Hz
■
PUMY-P125, P140YHMS
■
M-NET Remote Controller
Total operating current of the indoor unit
Minimum wire thickness (mm
2
)
Ground-fault interrupter *1
Local switch (A)
Breaker for wiring
(NFB)
Main cable
Branch
Ground
Capacity
Fuse
F0 = 16A or less *2
1.5
1.5
1.5
20 A current sensitivity *3
16
16
20
F0 = 25A or less *2
2.5
2.5
2.5
30 A current sensitivity *3
25
25
30
F0 = 32A or less *2
4.0
4.0
4.0
40 A current sensitivity *3
32
32
40
Apply to IEC61000-3-3 about max. permissive system impedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2 Please take the larger of F1 or F2 as the value for F0.
F1 = Total operating maximum current of the indoor units × 1.2
F2 = {V1 × (Quantity of Type1)/C} + {V1 × (Quantity of Type2)/C} + {V1 × (Quantity of Type3)/C} + {V1 × (Quantity of Others)/C}
