Section 5.0 Installation Guidelines
HGA IOM
26
installation. Typical or recommended cable entry locations are shown in the drawings shipped
with the unit.
Circuit Breaker
For HGA units provided with an internal circuit breaker, see tables below for field wiring terminal
wire size and tightening torque information. For circuit breaker selection recommendations on
HGA units provided without a circuit breaker, please reference the Circuit Breaker Selection. The
Circuit Breaker Selection contains tables of acceptable 65kAIC and 100kAIC circuit breakers from
various manufacturers.
Field Wiring Connection Terminals
Compression type terminals are provided for all field wiring connections. The wire size (75° C copper)
capacity ranges and tightening torque for the grounding and power terminals are listed in the tables
that follow. Refer also to the drawings and other information shipped with the unit. A means to
disconnect is the responsibility of the customer.
Table 3: 480 V - Power Terminal Wire Size Capacity Range and Tightening Torque for Active Filter Ground Lug
Filter Size
Ground Lugs
480 V Units
600 V Units
Wire Size*
Torque In-Lbs. (Nm)
Wire Type
45A to 100A
39A
6 AWG - 2/0
50 (5.7)
CU/AL
150A
110A
6 AWG - 2/0
50 (5.7)
CU/AL
200A
150A
6 AWG - 250 MCM
375 (42.4)
CU/AL
250A
185A
6 AWG - 250 MCM
375 (42.4)
CU/AL
300A
220A
3 AWG - 500 MCM
375 (42.4)
CU/AL
350A
260A
(2) 4 AWG - 600 MCM
500 (57)
CU/AL
400A
300A
(2) 4 AWG - 600 MCM
500 (57)
CU/AL
500A
370A
(2) 4 AWG - 600 MCM
500 (57)
CU/AL
600A
450A
(3) 2 AWG - 600 MCM
500 (57)
CU/AL
700A
520A
(3) 2 AWG - 600 MCM
500 (57)
CU/AL
Note
: Wire size range listed is for lug as per lug manufacturer. Follow NEC guidelines for sizing ampacity of power conductors.
Table 4: 480 V - Power Terminal Wire Size Capacity Range and Tightening Torque for Active Filter Models with
Eaton Circuit Breakers
Filter Size
MFG
Breaker IC
CB Power Terminals
480 V
600 V
Wire Size*
Torque In-Lbs. (Nm)
Wire Type
45A to 50A
39A
Eaton Cutler Hammer
65/100 kA
6 - 3/0 AWG
50 (5.6)
CU/AL
90A to 100A
78A
Eaton Cutler Hammer
65/100 kA
6 - 3/0 AWG
50 (5.6)
CU/AL
150A
110A
Eaton Cutler Hammer
65/100 kA
8 - 350 MCM
177 (20)
CU/AL
200A
150A
Eaton Cutler Hammer
65/100 kA
8 - 350 MCM
177 (20)
CU/AL
250A
185A
Eaton Cutler Hammer
65/100 kA
3 AWG - 500 MCM
375 (42)
CU/AL
300A
220A
Eaton Cutler Hammer
65/100 kA
3 AWG - 500 MCM
375 (42)
CU/AL
350A
260A
Eaton Cutler Hammer
65/100 kA
(2) 2 AWG - 500 MCM
375 (42)
CU/AL
400A
300A
Eaton Cutler Hammer
65/100 kA
(2) 2 AWG - 500 MCM
375 (42)
CU/AL
500A
370A
Eaton Cutler Hammer
65/100 kA
(2) 2 AWG - 500 MCM
375 (42)
CU/AL
Note
: Wire size range listed is for lug as per lug manufacturer. Follow NEC guidelines for sizing ampacity of power conductors.