6. Electrical characteristics
Model name
WHS09SZA21S
WHS12SZA21S
WHS18SZA21S
Power
supply
Voltage
V
208/230 ~
Frequency
Hz
60
MCA*
1
A
10.0
15.0
Wiring
spec.*
2
MAX. CKT. BKR*
3
A
15
20
Power cable
AWG
SJTW 3 × 16
SJTW 3 × 14
Connection
cable*
4
Size
AWG
SJTW 4 × 18
Limited wiring
length
ft (m)
69 (21)
Model name
WHS24SZA21S
WHS30SZA21S
Power
supply
Voltage
V
208/230 ~
Frequency
Hz
60
MCA*
1
A
20.0
25.0
Wiring
spec.*
2
MAX. CKT. BKR*
3
A
30
35
Power cable
AWG
SJTW 3 × 12
Connection
cable*
4
Size
AWG
SJTW 4 × 18
Limited wiring
length
ft (m)
69 (21)
Model name
WHS09SZA11S
WHS12SZA11S
Power
supply
Voltage
V
115 ~
Frequency
Hz
60
MCA*
1
A
13.5
16.5
Wiring
spec.*
2
MAX. CKT. BKR*
3
A
20
25
Power cable
AWG
SJTW 3 × 14
Connection
cable*
4
Size
AWG
SJTW 4 × 18
Limited wiring
length
ft (m)
69 (21)
*1: Minimum Circuit Ampacity (Calculation based on UL60335-2-40)
*2: Selected sample based on Japan Electrotechnical Standards and Codes Committee E0005. As
the regulations of wire size and circuit breaker differ in each country or region, select appropriate de-
vices complied to the regional standard.
*3: Maximum Circuit Breaker
*4: Limit voltage drop to less than 2%. If voltage drop is 2% or more, increase cable conductor size.
- 34 -
6. Electrical characteristics
O
U
TD
O
O
R
U
N
IT
W
H
S0
9-3
0SZ
A
O
U
TD
O
O
R
U
N
IT
W
H
S0
9-3
0SZ
A