Dimensions Guide

Specifications and dimensions subject to change without notice.
Sure-Lites • Customer First Center • 1121 Highway 74 South • Peachtree City, GA 30269 • TEL [phone] • FAX [phone]
TECHNICAL DATA
Lenses
Lenses are specifically designed to distribute
light forward and down towards Path of Egress.
Housing
The subtly detailed Model CU2 housing is
constructed of flame- and impact-resistant UL
945V rated polycarbonate in a color-stable
designer white finish. All electrical components
are securely attached in the housing and
prewired for fast AC connection. The housing is
tethered to the mounting plate freeing both
hands to make electrical connections. Once
complete, the housing simply snaps on to the
hinged mounting plate with two integral
securely locking tabs making the Model CU2
suitable for wall- or ceiling-mount applications.
The mounting plate has keyhole mounting slots
and a universal mounting pattern for quick,
efficient installation. The housing contains a
hidden tearout for surface conduit attachment.
Line-Latched
Sure-Lites’ line-latched electronic circuitry
makes installation easy and economical. A labor
efficient AC-activated load switch prevents the
lamps from turning on during installation to a
non-energized AC circuit. Line-latching
eliminates the need for a contractor’s return to a
job site to connect the batteries when the
building’s main power is permanently turned
on.
Solid-State Charger
Supplied with a 120/277 VAC, voltage regulated
solid-state charger. Immediately upon
restoration of AC current after a power failure,
the charger provides a high charge rate. The
charge circuit reacts to the condition of the
battery and alters the rate of charge in order to
maintain peak battery capacity and maximize
battery life. Solid-state construction recharges
the battery following a power failure in
accordance with UL 924.
Overload and Short-Circuit Protection
The solid-state overload monitoring device in
the DC circuit disconnects the lamp load from
the battery should excessive wattage demands
be made and automatically resets when the
overload or short-circuit is removed. This
overload current protective feature eliminates
the need for fuses or circuit breakers for the DC
load.
Brownout Circuit
The brownout circuit in Sure Lites’ units
monitors the flow of AC current to the unit and
activates the emergency lighting system when a
predetermined reduction of AC power occurs.
This dip in voltage will cause most ballasted
fixtures to extinguish causing loss of normal
lighting even though a total power failure has
not occurred.
Solid-State Transfer
The unit incorporates a solid-state switching
transistor which eliminates corroded and pitted
contacts or mechanical failures associated with
relays. The switching circuit is designed to
detect a loss of AC voltage and automatically
energizes the lamps. Upon restoration of the AC
power, the emergency lamps will switch off and
the charger will automatically recharge the
battery.
Low-Voltage Disconnect
When the battery’s terminal voltage falls below
80% of the rated voltage, the low-voltage
circuitry disconnects the lighting load. The
disconnect remains in effect until normal utility
power is restored, preventing deep battery
discharge.
Test Switch/Power Indicator Light
Conveniently located combination Test
Switch/Power Indicator Light allows for manual
verification of proper operation of the transfer
circuit and emergency lamps.
Sealed Lead Calcium Battery
The fully sealed, long-life, maintenance-free
lead calcium battery is ideal for emergency
lighting applications. These recombinant cycle
batteries typically provide eight to ten years of
life and may be operated in any position.
Warranty
All Sure-Lites’ units are backed by a firm one-
year warranty against defect in material and
workmanship (excluding lamps). Maintenance-
free, long-life, sealed lead calcium batteries
carry a five-year pro-rata warranty.
PHOTOMETRICS
CU2 SERIES
ADX041147 pc
2011-07-05 10:55:51
2011-07-11 10:07:22