The Killark SWB-33 is a copper-free cast aluminum alloy back box designed for custom drilled and tapped conduit openings on all four sides and the back. It features a ground flange joint between the bolted cover and box to provide a flame path. It accepts both miniature and standard size push buttons and has an internal ground screw.
Copper free cast aluminum alloy
Designed for custom drilled and tapped conduit openings on all four sides and the back
Ground flange joint between bolted cover and box provide required flame path
Product Highlights
The Killark SWB-33 back box provides control solutions in hazardous locations and is suitable for use with Killark XCS and XS Cover Assemblies.
Product Information
Standard Information
Brand: Killark
Manufacturer Part Number: SWB-33
Technical Specifications
Color
Gray
Sub Component
Box
Component
Accessories
Manufacturer
Killark
(Switching-Indication) Composition
Copper-Free Aluminum
Application
Hazardous locations due to the presence of flammable gases or vapors, combustible dusts, or easily ignitable fiber or flyings. Installations at petroleum refineries, chemical and petrochemical plants, and other processing or storage facilities where similar hazards exist. Use in conjunction with magnetic starters or contactors for remote control of motors.
Catalog Number
SWB-33
Material
Aluminum, Copper Free (less than 4/10 of 1%)
Mounting Type
Wall
Series
SWB Series
Type
Aluminum Device Body
UPC
783936631042
Depth
3-5/16 in
Height
9.75 in
Hub Size
1-1/2 "
Length
15 in
Weight
20.79 lb
Width
13.75 in
CSA File Number
LR11712
Hazardous Rating(s)
Class I, Divisions 1 & 2, Groups C, D
Class I, Zones 1 & 2, Groups IIB, IIA
Class II, Divisions 1 & 2, Groups E, F, G
Class III, Divisions 1 & 2