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Hard Use 20A Specification Grade Toggle Switch, Gray

CSB20AC3GRY Pass and Seymour
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Construction 3-Way Switch, Back and Side-Wire, 20A 120/277V. These switches offer excellent value while meeting federal specification standards. External screw-pressure-plate back wiring enables fast installation and superior electrical connections. Rugged construction shrugs off hard use and abuse.
Color Gray
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  • One-piece brass alloy contact arm for reliable electrical performance.
  • One-piece steel strap with integral ground is plated for corrosion resistance.
  • High strength thermoplastic polycarbonate toggle resists breaking and chipping under heavy abuse.
  • Heavy-duty toggle bumpers for smooth and quiet operation.
  • Back body made of glass-reinforced nylon. Locking support provides resistance to face and back body separation.
  • Available with side wire or external screw-pressure-plate back and side wire models capable of accepting #14 to #10 AWG copper or copper-clad wire.
  • Cam designed for fast make with positive break action to minimize arcing and prolong switch life.
  • Oversized silver alloy contacts for longer dependable switch life.
  • Tri-drive terminal and mounting screws.
  • For covering patents, see www.legrand.us/patents.
  • For compatible wall plate options, from our TradeMaster unbreakable plates to our radiant screwless plates to our metal wall plates, click here.


General Info
Product Line Pass & Seymour
Color Gray
Finish Matte
UPC Number 785007126266
Country Of Origin Mexico
Application Sector Residential/Commercial
Standard UL Listed E140597, Standard UL20, FedSpec WS896, Flammability Rating UL94 V2
Type Switch
Product Width US 1.32 in
Product Depth US 1.073 in
Product Height US 3.281 in
Listing Agencies / 3rd Party Agencies
cULus ListingNumber  140597
cULus Listed  Yes
Technical Information
Contact Configuration One piece brass alloy contact arm
Actuator Toggle
Connection Side Wire or external screw-pressure plate
Contact Rating Oversized silver alloy contacts
Amperage 20 A
Number of Poles 3-Way
Indoor/Outdoor Indoor
Operating Temperature -40°-115°C
Voltage 120/277 V
Connection Type Wired
Degree of Protection 1500V Dielectric Withstand Voltage


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Questions & Answers

Please provide a link tot he UL Cert, that has this part number on it.

Asked by: Steve
Hello, Please email Pass & Seymour Technical Support and request a Certificate Of Compliance documentation for part number CSB20AC3W. Pass & Seymour Technical Support Phone #: 800-223-4185 Monday - Friday | 8:00am - 6:00pm Eastern Standard Time (excluding holidays) Email: tech.support@legrand.us Best Regards, Technical Support
Answered by: Justin
Date published: 2023-09-22

What is the Correct UL File number?

Asked by: Steve
Hi Steve, The UL file number is E140597. I hope this helps!
Answered by: Wiremold Tech Support
Date published: 2023-09-21

What is the connector for a common wire on a CSB20AC# switch?

Asked by: Alexander
The common screw terminal on this device is the odd colored screw. For assistance with wiring the device, please feel free to call in to Technical Support at 844-957-3783
Answered by: Wiremold Tech Support
Date published: 2023-09-20
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