Technical Data
Effective September 30, 2014
CEPC – Emergency Power Control
Catalog#
Prepared by
Project
Date
Comments
Type
CEPC-1
CEPC-D-F-S-120
Overview
The Eaton's Cooper Controls Emergency Power Control (CEPC)
device allows the control of emergency lighting in iLumin
architectural dimming systems.
Technical Data 
CEPC – Emergency Power Control


September 2014
Specifications
General
Electrical Data
Mechanical:
Mounting:
Environment:
Interfacing:
Eliminates energy waste by allowing emergency
lighting to be switched and dimmed
Fail safe operation
Visible emergency power LED
Visible regular power LED
Integral test switch
Senses local circuit power loss
UL 924 listed, meets NEC, OSHA and NFPA safety
codes
Connections:
Normal Power Sensing/Control: 120V or 277V
Emergency Power: 120V or 277V
Load Ratings:
20A Ballast Load Rating
1800W Incandescent Load Rating at 120V
1500W Incandescent Load Rating at 277V (CEPC-1
only)
Size:
CEPC-1 Body Size: 2-7/8” x 1-3/4” x 1-3/4”
Flushmount size: 4-3/4”x2-3/4”x 1/4”
CEPC-D-F-S-* Surface mount size: 6”x6”x2-1/4”
CEPC-1 mounts to a 4-11/16” Junction box with
single gang plater ring
UL94-5VA Rated Plastic
Color: CEPC-1 = White, CEPC-D-F-S-* = Black
Weight: CEPC-1 = 8oz, CEPC-D-F-S-* = 16oz
Ambient Temp Rating: 32°F - 140°F (0°C - 60°C)
Compatibility:
CEPC-1: iLumin SC-RP, SC-RPB and Greengate
Occupancy Sensors
CEPC-D-F-S-*: iLumin SC-UN, SC-UN-FT
Standards
2
www.coopercontrol.com
Operation
The CEPC senses a local single normal power circuit. As long as
normal power is present the CEPC permits normal and emergency
switching and dimming of the lighting load from the iLumin
architectural dimming system. If normal power is lost for any reason,
the CEPC will force the connected emergency fixtures to full ON.
The CEPC can be wired as either a control device along with a relay
panel and occupancy sensor, or as a shunt to bypass line voltage
switching devices when normal power fails.
The CEPC-D-F-S is a universally compatible device that allows
control of 2, 3, and 4-wire emergency dimming loads. When normal
power is lost the CEPC-D-F-S will force the emergency fixtures to
the full bright condition.
Both CEPC models include a test switch feature for verifying
proper functionality. In addition the CEPC-1 model also provides
an automatic test feature. Under normal operation, when the
controlled load is turned OFF, the emergency lighting will remain on
an additional 2.5 seconds, providing safety and convenience while
leaving the area and eliminating the need of special equipment to
test the emergency control of the device.
Installation
The CEPC can be installed down line of the iLumin panels. The CEPC
should be located next to the emergency fixture it is controlling.
Technical Data
CEPC – Emergency Power Control


September 2014
Wiring Diagram
Wiring Diagram for 3-Wire Dimming Loads
CEPC-1-D
Emergency
Power
3
4
20A
Test
Emergency
Panel
5
6
7
8
9
10
Test
7 EM
Neutral
20A
Emergency
Lighting Load
Test
Emergency
Panel
Emergency
Lighting Load
6 EM Load
RED
Test
(Violet 0-10V)
Utility
Power
Blue
X1
X2
(Violet 0-10V)
1
2
3
Utility
Power
Emergency
Power
5 EM Hot
1 or 2
4
CEPC-D-F-S
Regular Neutral
0-10V
Gray wire
Regular Line Hot (Sensing Circuit)
iLumin SC-UN
Power Card
Load
Hot
Switched Hot
Dimmed Hot
Line
CK4A or Room Controller
Relay
Neutral
3-Wire Dimming
CEPC-D-F-S
CEPC-D-F-S
Wire##
Wire
3 - Wire Dimming
VIOGRY
1 1
Description
Description
iLumin Connection
Connection
iLumin
4-Wire Dimming
CEPC-1-D
Wire #
Color
Description
iLumin Connection
1
Black
Regular Hot (120V)
Constant Hot and
Relay Line
2
Orange
Regular Hot (277V)
Constant Hot and
Relay Line
iLumin Power Card (D)
3
Red
Switched Hot
Relay Load
iLumin Power Card (N)
4
White
Regular Neutral
5
blue
Emergency Hot
6
Yellow
Emergency Load Hot
7
White/Blue
Emergency Neutral
Do
Not
Do
Not
CutCut
Blue
Dimmer Violet (0-10V +)
Do Not Cut
Red
To Load Violet (0-10V +)
Black
Cap Off
1
1
Regular
HotHot
Regular
iLumin
Power
CardCard
(L)
iLumin
Power
(L)
2
2
Regular
Neutral
Regular
Neutral
iLumin
Power
CardCard
(N)
iLumin
Power
(N)
3
3
Emergency
HotHot
Emergency
4
4
Emergency Neutral
5
Switched Hot
iLumin Power Card (S)
6
Dimmed Hot
7
Regular Neutral
5
6
7
8
9
Emergency Neutral
Switched Hot
iLumin Power Card (D)
Regular Neutral
iLumin Power Card (N)
To Load Hot
9
Load
Hot Hot
ToTo
Load
Dimmed
10
Load
Dimmed Hot
ToTo
Load
Neutral
10 X1
X1
iLumin Power Card (S)
Dimmed Hot
8
ToNot
Load
Do
CutNeutral
X2
X2
CK4A or Room Controller
0-10V outputs
Panel Dimmer
Output Violet
Wiring Diagram for 2-Wire Dimming Loads
CEPC-D-F-S
Emergency
Panel
5
6
7
Test
Emergency
Lighting Load
X1
X2
Test
Emergency
Panel
Yellow
Test
Red
iLumin SC-UN
Power Card
Switchleg
Regular Line Hot
(iLumin SC-RP transformer power)
(or other constant hot circuit)
Load
20A
Neutral
CEPC-D-F-S
CEPC-D-F-S
#
Wire Wire
#
Regular Neutral
(iLumin SC-RP Neutral wire)
iLumin SC-RP
Relay Card
Hot
Switched Hot
Dimmed Hot
2-Wire Dimming
2 - Wire Dimming
Emergency
Lighting Load
Blue/
White
Utility
Power
1
2
Utility
Power
CEPC
Emergency
Power
Blue
Blue/
White
20A
White
Test
8
9
10
Black/
Orange
20A
Wiring Diagram for 2-Wire Non Dimmed Loads
Emergency
Power
3
4
Line
Normal Panel
Description
iLumin Connection
Description
iLumin Connection
2 - Wire Non Dimmed
2-Wire Non Dimmed
1
1
2 2
Regular Hot
Regular Hot
iLuminCard
Power
iLumin Power
(L) Card (L)
CEPCCEPC
Wire #
Description
Regular Regular
Neutral Neutral
iLuminCard
Power
iLumin Power
(N) Card (N)
Blue
Emergency Hot
3 3
Emergency
Hot
Emergency
Hot
Yellow
Emergency Switchleg
4 4
Emergency
Emergency
Neutral Neutral
Blue/White
Emergency Neutral
5 5
Dimming
Hot
Dimming
Hot
6 6
Not Used
Not Used
Black/Orange
Hot(Sensing)
(Sensing)
Regular Hot
Black/Orange Regular
Transformer Power (or
Transformer
Power
other
constant
hot circuit
7 7
Regular Regular
Neutral Neutral
Red
Switchleg
Relay Load Terminal Block
8 8
9
Regular
Neutral
Regular Neutral
Transformer
Neutral Wire
Transformer Neutral wire
Not Used
9
To LoadTo
Hot
Load Hot
10
To Load Neutral
Do Not Cut
X2
Do Not Cut
X1
X2
Blue
Yellow
iLuminCard
Power
iLumin Power
(D) Card (D)
iLumin Power
(N) Card (N)
iLuminCard
Power
Blue/White
Red
White
White
Description
iLumin Connection
iLumin Connection
Emergency Hot
Emergency Switchleg
Emergency Neutral
Switchleg
(or other constant hot circuit)
Relay Load Terminal Block
Not Used
X1
10
Wire #
To Load Neutral
Do Not Cut
Do Not Cut
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3
Technical Data 
CEPC – Emergency Power Control


September 2014
Ordering
Catalog #
Descriptoin
Rating
CEPC-1
CEPC-D-F-S-120
CEPC-D-F-S-277
Emergency Power Control 120V/277V
Emergency Power Control 120V
Emergency Power Control 277V
120V or 277V (Switching)
120V (2-wire, 3-wire, 4-wire dimming loads)
277V (2-wire, 3-wire, 4-wire dimming loads)
CEPC-1-D
Emergency Power Control 120V/277V 0-10V
120V or 277V (0-10 dimming loads)
CEPC-1-CUL
Emergency Power Control for Canada 120V/277V
120V or 277V (Switching)
CEPC-D-F-S-120V-CUL
Emergency Power Control for Canada 120V
120V (2-wire, 3-wire, 4-wire dimming loads)
CEPC-D-F-S-277V-CUL
Emergency Power Control for Canada 277V
277V (2-wire, 3-wire, 4-wire dimming loads)
CEPC-1-D-CUL
Emergency Power Control for Canada 120V/277V 0-10V
120V or 277V (0-10 dimming loads)
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Eaton’s Cooper Controls Business
203 Cooper Circle
Peachtree City, GA 30269
coopercontrol.com
© 2014 Eaton
All Rights Reserved
Printed in USA
Publication No. ACC140950
September 30, 2014
Eaton is a registered trademark.
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of their respective owners.