Cut Sheet

ELS Series Emergency Lighting System
Explosionproof, Dust-Ignitionproof
Remote and direct mounted fixtures for hazardous location applications
Applications
• ELS Series features an emergency lighting power unit that is
designed to provide safe operation in the presence of hazardous
gases, vapors or dusts, dened by the National Electrical Code
as Class I, Groups C and D, and Class II, Groups E, F and G.
• Typical applications include all means of egress (such as
walkways, exit ramps, stairs and aisles) for hazardous areas
which include oil reneries, petrochemical facilities, pulp and
paper mills, chemical storage areas, wastewater treatment
facilities and grain elevators.
Features
• The electronics consist of a solid-state charger, transfer circuit
and low-voltage battery disconnect circuit.
• The unit test switch and AC “On” indicator light are housed in
a separate module that may be attached directly to the unit
housing or mounted remotely for ease of testing.
• All ELS Series units are rated for operation in NEC Class I,
Division 1 and 2, Groups C and D; and Class II, Division 1 and 2,
Groups E, F, and G environments.
• Housing provisions allow for the attachment of two optional
explosionproof lighting xtures.
• Unit capacity is sufcient for the connection of up to four 6- or
12- volt, 18-watt xtures.
• Units provide 90 minutes of emergency operation.
• The solid-state charger maintains battery at full charge.
• Upon failure of utility voltage, the DC emergency lighting load is
connected to the battery.
• During emergency operation, automatic battery protection from
deep discharge damage is provided by a low-voltage battery
disconnect (LVD) circuit.
• Upon restoration of normal power, the charger will begin a
recharge cycle. It will bring the battery to full capacity within
acceptable UL time standards.
• A pilot light indicates the presence of AC line voltage, and a test
switch is provided for checking transfer operation. Lock-out
type guard on push button accepts locks with up to 6.5 mm
(1/4 in) hasp.
• A universal transformer allows operation on 120 or 277 Vac
lines.
• Emergency power source is a maintenance-free, sealed,
pure-lead battery suited for harsh temperature environments
for 0 °C to +40 °C (+32 °F to +104 °F).
— Never necessary to add water.
— Expected life is 10 years
— Compact in design
• Standard illumination is provided during power failure only using
xtures specially designed for emergency lighting in hazardous
environments, supplied with double contact bayonet base 18-
or 28-watt incandescent lamps.
• Designed for easy installation. Provided with 4 mounting holes
for attachment to a wall or other suitable surface. Mounting
hardware not included.
• Housing is drilled and tapped for installation of utility
12.7 mm (1/2 in) NPT conduit.
• Quick access to internal wiring and components is provided
by thread-on cover.
• All necessary ttings for test switch/ pilot light module
supplied standard.
Standard Materials
• Battery enclosure, xtures, guards and pendant mount:
copperfree (4/10 of 1% max.) aluminum.
• Ceiling and bracket mounts: malleable iron with aluminum
adapter
• Reectors: porcelain enameled steel
• Test Switch: copperfree (4/10 of 1% max.) aluminum with
stainless steel hardware
Standard Finishes
• Enclosure, xtures and test station: epoxy powder coat
nish electrostatically applied for complete and uniform
surface protection
• Reectors: white porcelain enamel
Options
• The xture may be adapted to serve as an exit sign through use
of an Auxiliary Exit Housing.
• Time Delay Relay (15 minutes) available to permit normal
lighting to re-establish brightness. Add sufx -T1 for 120 Vac, or
-T2 for 277 Vac.
NEC Certifications and Compliances
• UL Standard: UL 924, UL 844, UL 1598
• UL Listed: 175025
NEC:
Class I, Division 1 and 2, Groups B , C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
 Contact your sales representative for Class I, Group B rating.
FLUORESCENT/AREA: NEC/CEC EXPLOSIONPROOF
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© May 2019
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