Class I, Division 1 and 2, Groups B, C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3, 7 BCD, 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 classied areas where ignitable vapors, gases or
highly combustible dusts are present.
• For installation in:
— Chemical plants
— Petrochemical plants
— Reneries
— 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.
• Factory sealed switches are designed to a UL Standard so
that any arcing devices are contained within an explosionproof
labyrinth switch (standard switch and sealing chamber on
select models). Tumbler switch devices are approved for
installation without additional external sealing ttings.
• 1/2” and 3/4” 1-gang units suitable for Class I, Group B, in
addition to Class I, Groups C and D; Class II, Groups E, F and
G; and Class III.
• 20 Amp 4-way and all 30 Amp models utilize a switch enclosed
in separate sealing chamber. Smooth double-face, accurately
ground surfaces on sealing chamber ange mate with cover
and body to provide positive ame-tight construction.
• Sealing chamber has prewired factory sealed pigtail leads to
switch.
• Corrosion resistant, strong stainless steel hex head cap screws
attach cover/body/sealing chamber assembly for approved
Indicates items which are suitable for Class I, Group B, as well as Class I, Groups C and D; Class II, Groups E, F, G; and Class III. See product selection pages
for suitable items.
69
EDS Factory Sealed Tumbler Switches
CONTROLS: NEC/CEC EXPLOSIONPROOF CONTROL STATIONS AND SWITCHES
Class I, Division 1 and 2, Groups B, C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3, 7 BCD, 9EFG
Options
• 1- or 2-gang copperfree (4/10 of 1% max.) aluminum bodies
and covers available. Add sufx – A.
• NPBRKT nameplate mounting bracket to make circuit
description/identication 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 identication 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 identication nameplate.
— Brackets t side-by-side on 2-, 3- and 4-gang boxes and
3-devices.
Standard Materials
• Body and cover: malleable iron
NEC/CEC Certifications and Compliances
• UL Standards: UL 894, UL 1203
• UL Listed: E10523, E81751
• cUL Listed: E81751, E810523
Ordering Information for ”Custom” Units
• Devices, covers and bodies may be ordered separately so that
a different EDS chamber/switch assembly may be used in each
gang.
• Order components separately as follows:
(1) select mounting body catalog number,
(2) select cover catalog number with desired switch operation
(1-pole, 2-pole, 3-way or 4-way).
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 specied at
any location.
• Tumbler switches may be ordered with tandem malleable iron
boxes with additional brazed hubs as specied.
• Standard malleable iron single and 2-gang tumbler switches
may be ordered with additional brazed hubs as specied.
• Single and 2-gang tumbler switches may be ordered with
aluminum boxes with additional brazed hubs as specied.
Related Products
• For classied-location push button, pilot light and selector
switch control stations, see EFD/EFDB and EDS Control
Stations and Pilot Lights.
Indicates items which are suitable for Class I, Group B, as well as Class I, Groups C and D; Class II, Groups E, F, G; and Class III. See product selection pages
for suitable items.
Aluminum rocker arm cover is not available.
70
EDS Factory Sealed Tumbler Switches
CONTROLS: NEC/CEC EXPLOSIONPROOF CONTROL STATIONS AND SWITCHES
Malleable Iron Body and Cover. Furnished with Internal Ground Screw.
NEC/CEC:
Class I, Division 1, Groups B, C, D
Class I, Division 2, Groups B, C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3, 7CD, 9EFG
1-Gang — Front Operated
Dead-End
Feed-Thru
2-Gang — Front Operated
Dead-End
Hub Size
(Inches)
20 Amp — 120-277 Vac
1/21-PoleEDS150-F1EDSC150-F1
1/22-PoleEDS150-F2EDSC150-F2
1/23-WayEDS150-F3WEDSC150-F3W
1/24-WayEDS150-F4W EDSC150-F4W
3/41-PoleEDS175-F1EDSC175-F1
3/42-PoleEDS175-F2EDSC175-F2
3/43-WayEDS175-F3WEDSC175F3W
3/44-WayEDS175-F4W EDSC175F4W
11-PoleEDS110-F1EDSC110-F1
12-PoleEDS110-F2EDSC110-F2
13-WayEDS110-F3WEDSC110-F3W
14-WayEDS110-F4W EDSC110-F4W
30 Amp — 120-277 Vac
3/41-PoleEDS175-F13 EDSC175-F13
3/42-PoleEDS175-F23 EDSC175-F23
3/43-WayEDS175-F3W3 EDSC175-F3W3
11-PoleEDS110-F13 EDSC110-F13
12-PoleEDS110-F23 EDSC110-F23
13-WayEDS110-F3W3 EDSC110-F3W3
20 Amp — 120-277 Vac
1/21-PoleEDS250-F1EDSC250-F1
1/22-Pole—EDSC250-F2
1/23-Way—EDSC250-F3W
1/24-Way—EDSC250-F4W
3/41-PoleEDS275-F1EDSC275-F1
3/42-Pole—EDSC275-F2
3/43-WayEDS275-F3WEDSC275-F3W
3/44-Way—EDSC275-F4W
11-PoleEDS210-F1EDSC210-F1
12-PoleEDS210-F2EDSC210-F2
13-WayEDS210-F3WEDSC210-F3W
14-WayEDS210-F4W EDSC210-F4W
SwitchDead-EndFeed-Thru
Catalog Number
Feed-Thru
For aluminum backbox and cover, add suffix -A.
20 Amp — 1 HP at 120 Vac and 2 HP at 240 Vac.
30 Amp — 2 HP at 120 Vac or 240 Vac.
Contains standard switch and sealing chamber.
Shaded area indicates items suitable for Class I, Group B, as well as Class I, Groups C and D; Class II, Groups E, F, G; and Class III.
71
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