IF 267 • 04/20 Copyright © 2020, Eaton’s Crouse-Hinds Division Page 2
WIRING CONNECTION
Determine the type of distribution system to be used that will comply with
NEC requirements and ensure grounding con tinuity.
Proper grounding of systems and circuit conductors is required to limit
hazardous voltages caused by lightning, line surges or unintentional contact
with higher voltage lines and to stabilize the voltage to ground during
normal operation. All conductive materials that enclose the electrical
conductors or attached equipment or forming part of such equipment must
be grounded. A permanent conducting connection must be made between
all such equipment and the earth.
Pull all power supply conductors into enclosure and make connections to
the line side of the circuit breaker following the wiring pattern established
for your system.
The Arktite receptacles on the EPC enclosures are polarized so that mating
plugs can enter the receptacle only one way. Also, the mating contacts in
the receptacle and corresponding plug are identified by numbers on the
insulating recesses. Note: Some Arktite plugs manufactured prior to 1982
identify the mating contacts by color. Contact members in the receptacle
always mate with those in a plug identified by the same number {or color).
This assures proper polarity or phase rotation of conductors through
receptacle and plug.
Usually the conductors in a cable or conduit system are identified by the
color of the insulation covering each individual conductor. We assume
that these colors agree with those given in Section 210-5 of the National
Electrical Code for multi-wire branch circuits; also, that there is an additional
wire in the cable or conduit system that is uninsulated or identified green
that is for grounding and complies with Sections 250-42 and 250-45 of
the National Electrical Code. If the conductors are not identified with
exactly these colors, these colors may be assumed when making proper
connections.
WARNING
EPC Series enclosures must be securely attached into a permanently
grounded conduit system in accordance with Article 250 of the National
Electrical Code.
!
WARNING
Before installing an EPC Series enclosure with interlocked Arktite
receptacle, a wiring pattern must be established for your system.
Locations having different voltages, frequencies or types of current {AC
or DC)
MUST NOT
have interchangeable attachment plugs as stated in
paragraph 210-7F of the National Electrical Code.
!
Circuit breaker
Enclosure
Receptacle
with spring
door housing
Rating
Hub
size
Circuit
breaker
amperage
Cat. #
Without circuit
breaker
With circuit breaker
Cat. #
Cutler-Hammer
“EHD”
Cat. #
General Electric
“TED”
30A
2-wire, 3-pole
Style 2
2-pole, 480 VAC
A
or 250 VDC
600 VAC
B
1
1
/
4
”
20
EPC43032
EPC43032 WT20 2
EPC43032 TT20 2
30
EPC43032 WT30 2
EPC43032 TT30 2
40C
EPC43032 WT40 2
EPC43032 TT40 2
50C
EPC43032 WT50 2
EPC43032 TT50 2
30A
3-wire, 4-pole
Style 2
3-pole, 480 VAC
A
or 250 VDC
600 VAC
B
1
1
/
4
”
20
EPC43042
EPC43042 WT20 3
EPC43042 TT20 3
30
EPC43042 WT30 3
EPC43042 TT30 3
40C
EPC43042 WT40 3
EPC43042 TT40 3
50C
EPC43042 WT50 3
EPC43042 TT50 3
60A
2-wire, 3 pole
Style 2
2-pole, 480 VAC
A
or 250 VDC
600 VAC
B
1
1
/
4
”
50
EPC46032
EPC46032 WT50 2
EPC46032 TT50 2
60
EPC66032 WT60 2
EPC66032 TT60 2
70C
EPC66032 WT70 2
EPC66032 TT70 2
2”
90C
EPC66032
EPC66032 WT90 2
EPC66032 TT90 2
100C
EPC66032 WT100 2
EPC66032 TT100 2
60A
3-wire, 4-pole
Style 2
3-pole, 480 VAC
A
or 250 VDC
600 VAC
B
1
1
/
4
”
50
EPC46042
EPC46042 WT50 3
EPC46042 TT50 3
60
EPC66042 WT60 3
EPC66042 TT60 3
70C
EPC66042 WT70 3
EPC66042 TT70 3
2”
90C
EPC66042
EPC66042 WT90 3
EPC66042 TT90 3
100C
EPC66042 WT100 3
EPC66042 TT100 3
100A
2-wire, 3-pole
Style 2
2-pole, 480 VAC
A
or 250 VDC
600 VAC
B
2”
60
EPC61032
EPC61032 WT60 2
EPC61032 TT60 2
70
EPC61032 WT70 2
EPC61032 TT70 2
90
EPC61032 WT90 2
EPC61032 TT90 2
100
EPC61032 WT100 2
EPC61032 TT100 2
100A
3-wire, 4-pole
Style 2
3-pole, 480 VAC
A
or 250 VDC
600 VAC
B
2”
60
EPC61042
EPC61042 WT60 3
EPC61042 TT60 3
70
EPC61042 WT70 3
EPC61042 TT70 3
90
EPC61042 WT90 3
EPC61042 TT90 3
100
EPC61042 WT100 3
EPC61042 TT100 3
A
Enclosures with 600V circuit breakers from the U.S. are available. Information available upon request.
B
CSA certified units are supplied with 600 VAC FDB frame circuit breakers.
Table 1. EPC Enclosure Circuit Breaker Selection
CAUTION
Selecting a circuit breaker with an ampere rating exceeding that of the Arktite receptacle must
only be done where a momentary in-rush current can be caused by heavy, slow-starting loads,
but where the normal continuous operating current is less than the receptacle rating.
!
WARNING
For each system the same colored wire must be attached to the same
numbered {or color coded) contact on all plugs and receptacles in
that system. This will assure correct system polarity and reduce the
possibility of equipment damage and/or personal injury due to mis-
phasing or electrical shorts. Always test before energizing.
!