28
| 5.0
installation
5.4.6 Terminal Block Connections
Conduit entry holes are provided on the rear and side of the box. input and output wiring should not share the same
conduit. SolaHD recommends using strain relief when installing the wire.
L2
N
L1
L2
N
L1
OUTPUT
INPUT
L2
N
L1
L2
N
L1
OUTPUT
INPUT
S4K4U6000C
S4K6U10KC
Figure 22: Terminal block connections
Table 2: Electrical Specifications
Model
Recommended
Maximum External
Overcurrent Protection
Recommended wire
(Including ground wire)
Maximum wire
Accepted by Terminal
Block
Terminal Tightening
Torque
S4K4U6000C
30 A
10 AWG (4 mm
2
),
75°C
8 AWG (6 mm
2
)
10 in-lb (2.26 n-m)
S4K6U10KC
60 A
6 AWG (10 mm
2
),
90°C
6 AWG (10 mm
2
)
10 in-lb (2.26 n-m)
NOTES:
•
For Model S4K4U6000C:
Use no. 10 AWG, 75°C copper wire, Type THHn, THWn, THWn-2, FEP, FEPB, PFA, PFAH, or
TFE and 10 in-lb torque force when connecting to the terminal block.
•
For Model S4K6U10kC:
Use no. 6 AWG, 90°C copper wire, Type THHn, THWn, THWn-2, FEP, FEPB, PFA, PFAH, or TFE
and 10 in-lb torque force when connecting to the terminal block.
•
SolaHD recommends installing a UL489-approved breaker upstream of the unit.
•
The installer must provide circuit breaker protection according to local codes. The utility disconnect should be
within sight of the UPS or have an appropriate lock-out. maintain service space around the UPS or use flexible
conduit.
•
The installer must provide output distribution panels, circuit breaker protection, or emergency disconnects
according to local codes. Output circuits must not share a common conduit with any other wiring.
