EPC-A-1 Emergency Power Relay

EPC-A-1
Emergency Power Relay
TM
“Extreme Reliability”
Lighting Control Systems
Description:
The EPC-A-1 Emergency Power Controller is used for controlling emergency lighting loads. Both
Main power and Emergency power is connected to the device and an internal sensing circuit will
sense when the main power is interrupted. During a power interruption, this sensing circuit
causes the internal relay to drop into a Normally Closed position and turns on the emergency
lighting power. The EPC-A-1 is equipped with a green LED, which indicates if regular utility power
is available and field sensing wiring is connected correctly.
Automatic Diagnostic Feature:
This device may be placed above an accessible ceiling tile because the unit does not require an
accessible test switch to test the device. When the room switch is turned off, the emergency
luminaires stay on for 2.5 seconds indicating that an emergency power source was available and
that the EPC-A-1, ballast, and lamps are all functioning properly. This feature replaces the need for
a test switch on the unit.
Electrical Specifications:
Model EPC-A-1 Universal Mount-120/277
120V or 277V Sensing Input
120V or 277V Load
20 Amp Load Rating
Normally Closed (N.C.) Contact
UL924 Listed
Mechanical Specifications:
Mounts in 4-11/16” Junction Box with blank cover
UL94V-0 Flame Rating
Shipping Weight: 8oz.
Temperature: 32°F-140°F
Color: Black
Size (with mounting ears): 3-3/4”(L) x 1-3/4”(W) x 1-1/2”(H)
Mounting:
The EPC-A-1 can be universally mounted in a wall or ceiling using a 4-11/16” junction box with
blank cover. See Figure 1. EPC-A-1 can also be mounted in plenum, when tiles are removable. See
Figure 2.
NexLight is a re gis te re d tra de ma rk of N O R T H P O R T E N G I N E E R I N G I N C . , P ub N o. 0 0 5 6, 09/11/2012
Phone: 218.828.3700
www.nexlight.com
Page 1
Fax: 218.824.1568
EPC-A-1
Emergency Power Relay
TM
“Extreme Reliability”
Lighting Control Systems
Figure 1: Universal Wall or Ceiling Mount
Figure 2: Fire Ceiling Mount
Figure 3: Typical Wiring Diagram
NexLight is a re gis te re d tra de ma rk of N O R T H P O R T E N G I N E E R I N G I N C . , P ub N o. 0 0 5 6, 09/11/2012
Phone: 218.828.3700
www.nexlight.com
Page 2
Fax: 218.824.1568