Cut Sheet

Class I, Division 1 and 2, Groups C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 7CD, 9EFG
Applications
• Designed to prevent arcing of enclosed switches in ignitable
atmospheres during connect and disconnect operation of
lighting and light power loads.
• For use in classied areas where ignitable vapors, gases or
highly combustible dusts are present.
• For installation in:
— Chemical plants
— Petrochemical plants
— Reneries
— Other process industries
Features
• Enclosures have external mounting lugs for ease of mounting.
• Smooth, rounded integral bushing in each hub protects
conductor insulation.
• Enclosures furnished with internal ground screw.
• 20 Amp and 30 Amp units available for use with 120-277 Vac.
• Smooth ground mating surfaces assure ame-tight joint
between cover and mounting enclosure.
• Stainless steel hex head cap screws for attaching cover to
mounting enclosure.
• Choice of front-operating or side rocker arm handle—each may
be locked in ON or OFF position.
• Each handle has close-tolerance threaded stainless steel shaft
to meet explosionproof requirements.
• Enclosures furnished with internal ground screw.
Options
• 1- or 2-gang copperfree (4/10 of 1% max.) aluminum bodies
and covers available. Add sufx – A.
• NPBRKT nameplate mounting bracket to make circuit
description/identication easy.
— Pre-drilled holes in bottom of bracket allow direct mounting
to control stations with existing cover bolts.
— Pre-drilled holes in middle of bracket allow mounting of
customer’s circuit identication nameplate; epoxy glue
may also be used for mounting (phenolic nameplate not
included).
— Bracket eliminates costly eld installation of drilling and
tapping to accommodate circuit identication nameplate.
— Brackets t side-by-side on 2-, 3- and 4-gang boxes and
3-devices.
Standard Materials
• Body and cover: malleable iron
• Handle: nylon 6/6
• Optional nameplate mounting bracket: corrosion resistant
stainless steel
Standard Finishes
• Tumbler switch body: triple-coat—(1) zinc electroplate, (2)
chromate, and (3) epoxy powder coat
Certifications and Compliances
• UL Standards: UL 894, UL 1203
• UL Listed: E10523, E81751
Ordering Information for “Custom” Units
• Devices, covers and bodies may be ordered separately so that
a different EFS switch may be used in each gang.
• Order components separately as follows:
(1) select body catalog number,
(2) select cover catalog number, and
(3) select switch or switch assembly catalog number (1-pole,
2-pole, 3-way or 4-way available in listings).
How to Order Hub Arrangements
• Simply send sketch indicating sizes and locations for brazed
hubs on body or bodies selected from catalog listings. Orient
sketch so that cover opening faces front and mounting lugs
face upward and downward (box wall opposite cover should be
referred to as the back of box).
Bodies and Hubs Available
• Tumbler switches may be ordered in single thru ve gang deep
malleable iron blank bodies with brazed hubs as specied at
any location.
• Tumbler switches may be ordered with tandem malleable iron
boxes with additional brazed hubs as specied.
• Standard malleable iron single and 2-gang tumbler switches
may be ordered with additional brazed hubs as specied.
• Single and 2-gang tumbler switches may be ordered with
aluminum boxes with additional brazed hubs as specied.
Related Products
• For classied-location push button, pilot light and selector
switch control stations, see Explosionproof Control Stations
Section.
Front Operated Rocker Arm Operated
Illustrated Features
Handles may be locked in ON or OFF position
Controls
CONTROLS: HAZARDOUS LOCATION CONTROL STATIONS AND SWITCHES
Visit our website at www.appletonelec.com or contact us at [phone].
© September 2010
236
EFS Non-Sealed Tumbler Switches
Explosionproof, Dust-Ignitionproof
Malleable Iron Body and Cover. Furnished with Internal Ground Screw.