Class I, Div. 1 and 2,Groups C,DClass II, Div. 1 and 2,Groups E,F,GClass IIINEMA 7CD,9EFG

EPS Tumbler Switches:Non-Sealed, Front Operated;Explosion-Proof, Dust-Ignition-ProofMalleable Iron Body and Cover.UNILETS® fpr Use with Threaded Metal Conduit.Furnished with Internal Ground Screw.

HubSize,Inches Switch

Catalog Number

Dead-End Feed-Thru

Dead-End

Single Gang

20-Ampere—120-277 Volt A.C.*

1/21/21/21/2

3/43/43/43/4

1-Pole2-Pole3-Way4-Way

1-Pole2-Pole3-Way4-Way

30-Ampere—120-277 Volt A.C.*

3/43/4

1-Pole2-Pole

EFS150-F1

EFS150-F3WEFS150-F4W

EFS175-F1EFS175-F2EFS175-F3WEFS175-F4W

EFS175-F13EFS175-F23

EFSC150-F1EFSC150-F2EFSC150-F3WEFSC150-F4W

EFSC175-F1EFSC175-F2EFSC175-F3WEFSC175-F4W

EFSC175-F13EFSC175-F23

Feed-Thru

Dead-End

Two Gang

20-Ampere—120-277 Volt A.C.*

1/21/21/21/2

3/43/43/43/4

111

1-Pole2-Pole3-Way4-Way

1-Pole2-Pole3-Way4-Way

2-Pole3-Way4-Way

30-Ampere—120-277 Volt A.C.*

3/43/41

1-Pole2-Pole2-Pole

EFS250-F1

EFS275-F1

EFS210-F2EFS210-F3WEFS210-F4W

EFS275-F13

EFS210-F23

EFSC250-F1EFSC250-F2EFSC250-F3WEFSC250-F4W

EFSC275-F1EFSC275-F2EFSC275-F3WEFSC275-F4W

EFSC275-F13EFSC275-F23

Feed-Thru

*20 Amp—1 HP at 120 Volt A.C. and 2 HP at 240 Volt A.C. **30 Amp—2 HP at 120 Volt A.C. or 240 Volt A.C.

Effective October, 1993Copyright 1993 Printed in U.S.A.

PAGESAppleton

• • ELECTRIC COMRANY

1701 West Wellington AvenueChicago, Illinois 60657

EDS Factory Sealed and EPSTumbler Switches: Explosion-Proof,Dust-Ignition-Proof.UNILETS® for Use with Threaded Metal Conduit.

Applications• Designed to prevent arcing of en-closed switches in ignitable atmos-pheres during connect and disconnectoperation of lighting and light powerloads.• For use in classified areas where ig-nitable vapors, gases or highly combus-tible dusts are present.• For installation in chemical and petro-chemical plants, refineries, and otherprocess industries.Features: All Tumbler Switches• EDS and EFS enclosures have exter-nal mounting lugs for ease of mounting.• Smooth, rounded integral bushing ineach hub protects conductor insulation.• 20-ampere and 30-ampere units avail-able for use with 120-277 Volt A.C.

Features: EDS Factory SealedTumbler Switches• Factory sealed switches are designedto a U.L. standard so that any arcingdevices are within a chamber which con-tains any explosions. EDS tumblerswitch devices are approved for instal-lation without additional external sealingfittings.• 1/2" and 3/4" single gang units suitablefor Class I, Group B, in addition to ClassI, Groups C and D; Class II, Groups E,F and G; and Class III.• Switch is enclosed in separate sealingchamber.• Smooth double-face, accuratelyground surfaces on sealing chamberflange mate with cover and body to pro-vide positive flame-tight construction.• Sealing chamber has prewired factorysealed pigtail leads to switch.• Corrosion-resistant, strong stainlesssteel hex-head cap screws attachcover/body/sealing chamber assemblyfor approved flame-tight construction.• Threaded stainless steel operatinghandle provides positive corrosion-resistant operation.• Choice of Front-Operating or SideRocker Arm Handle—each may belocked in ON or OFF position.

PAGE 2, Effective 1980

tonI ELECTRIC COMPANY

1701 W. Wellington Ave.Chicago, Illinois 60657

Copyright 1980 Printed in U.S.A.

EDS Factory Sealed and EPSTumbler Switches: Explosion-Proof,Dust-Ignition-ProofUNILETS® for Use with Threaded Metal Conduit.

Features: EFS Non-SealedTumbler Switches• Smooth ground mating surfaces as-sure flame-tight joint between cover andmounting enclosure.• Stainless steel hex-head cap screwsfor attaching cover to mountingenclosure.• Choice of Front-Operating or SideRocker Arm Handle—each may belocked in ON or OFF position.• Each handle has close-tolerancethreaded stainless steel shaft to meetexplosion-proof requirements.Standard Materials• EDS tumbler switches: malleable ironbody and cover with aluminum sealingchamber. Handle is nylon 616.• EFS tumbler switches: malleable ironbody and cover.Standard Finishes• EDS and EFS tumbler switches: triple-coat—(1) zinc electroplate, (2) dichro-mate, and (3) epoxy powder coat.• EDS aluminum sealing chamber: nat-ural finish.Compliances:• UL Standard 894.• Class I, Div. 1 and 2; Class II, Div.1 and 2. See listing pages for specificgroups. Conduit seals are required inClass I areas unless unit is factorysealed.• Appleton malleable iron productsconform to ASTM A47-77, Grade32510, which has the following prop-erties: tensile strength, 50,000 psi;yield, 32,000 psi; and elongation, 10%.• Appleton aluminum products areproduced from a high strength copper-free (4/10 of 1% max.) alloy.Product Cross Reference:• For classified-location push button,pilot light and selector switch controlstations, see Catalog Section M.

EDS factory sealed tumbler switch—showsseparate sealing chamber and switchconstruction.

EDS and EFS choice of handles—front-op-erated or rocker arm handle.

EDS and EFS handles may be locked in ONor OFF position.

Ordering Information for"Custom" EDS and EFS Units

Devices, covers and bodies may beordered separately so that a differentEDS Chamber/Switch Assembly orEFS Switch may be used in each gang.Order components separately as fol-lows: (1) select body catalog number,(2) select cover catalog number, and(3) select switch or switch assemblycatalog number (1-pole, 2-pole, 3-wayor 4-way available in listings).

How to Order Hub ArrangementsSimply send sketch indicating sizes analocations for brazed hubs on body orbodies selected from catalog listings.Orient sketch so that cover openingfaces front and mounting lugs face up-ward and downward (box wall oppositecover should be referred to as the backof box).

See Catalog Section M, Page 14, for addi-tional ordering information.

Bodies and Hubs Available• EDS and EFS tumbler switches maybe ordered in single thru five gang deepmalleable iron blank bodies with brazedhubs as specified at any location.• EDS and EFS tumbler switches maybe ordered with tandem deep malleableiron boxes with additional brazed hubsas specified.• Standard EDS deep and standardEFS shallow malleable iron single andtwo gang tumbler switches may be or-dered with additional brazed hubs asspecified.• EDS and EFS single and two gangtumbler switches may be ordered withdeep aluminum boxes with additionalbrazed hubs as specified.

Effective October, 1993Copyright 1993 Printed in U.S.A. Appleton

• I ELECTRIC COMPANY

1701 West Wellington AvenueChicago, Illinois 60657

PAGES