Pass & Seymour CSB20AC4 Hard U...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$41.56
Pass & Seymour CSB20AC4 Hard Use Specification Grade Toggle Switch

Pass & Seymour CSB20AC4 Hard Use Specification Grade Toggle Switch

(No reviews yet) Write a Review

Model: CSB20AC4

In Stock (leaves warehouse same day if ordered before 3pm ET)

$41.56
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Pass & Seymour CSB20AC4W Hard Use Specification Grade Toggle Switch, White

The Pass & Seymour CSB20AC4W is a Hard Use Specification Grade toggle switch finished in white, engineered with a one-piece brass alloy contact arm and oversized silver alloy contacts for reliable, long-lasting electrical performance. Built to Federal Spec standards and Listed by CSA and UL, this switch is designed for demanding commercial and industrial-grade installations where dependable operation matters. Side wire or external screw-pressure-plate back and side wire models accept #14 - #10 AWG copper or copper-clad wire, making it a versatile choice for professional electricians.

Key Features

  • Wire Compatibility: Accepts #14 - #10 AWG copper or copper-clad wire via side wire or external screw-pressure-plate back and side wire terminals.
  • Durable Contact Arm: One-piece brass alloy contact arm delivers reliable electrical performance over time.
  • Reinforced Back Body: Glass-reinforced nylon back body with locking support resists face and back body separation under heavy use.
  • Heavy-Duty Toggle Bumpers: Provide smooth, quiet toggle operation switch after switch.
  • Positive-Break Cam Design: Engineered for fast make with positive break action to minimize arcing and prolong switch life.
  • Corrosion-Resistant Strap: One-piece steel strap with integral ground is plated for corrosion resistance.
  • High-Strength Toggle: High strength thermoplastic polycarbonate toggle resists breaking and chipping under heavy abuse.
  • Oversized Silver Alloy Contacts: Sized for longer, dependable switch life, paired with tri-drive terminal and mounting screws.

Certifications & Compliance

  • Federal Spec Listed
  • CSA Listed
  • UL Listed

Technical Specifications

  • Country Of Origin: Mexico
  • Product Finish: Matte
  • Product Height: 3.281 in
  • Product Line: Pass & Seymour
  • Product Width: 1.32 in
  • Product Depth: 1.073 in

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Specification-Grade Lighting and Switch Circuits
  • Heavy-Duty Wiring Device Retrofits
  • New Construction Wiring Projects
  • Renovation Projects Requiring Federal Spec Compliance

Why Pass & Seymour?

Pass & Seymour builds this switch with a one-piece brass alloy contact arm, oversized silver alloy contacts, and a glass-reinforced nylon back body for durability that withstands heavy, repeated use. With Federal Spec, CSA, and UL Listing, the CSB20AC4W delivers the reliable, code-compliant performance professional electricians expect from hard-use specification-grade wiring devices.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Switch
Country of Origin:
Mexico
Product Group:
Wiring Devices
Department:
Electrical
Product Finish:
Matte
Product Subgroup:
Toggle Switches

Pass & Seymour CSB20AC4 – Frequently Asked Questions

1) What wire size does the Pass & Seymour CSB20AC4 toggle switch accept?
The CSB20AC4 takes #14 through #10 AWG copper or copper-clad wire. Terminations are side wire, or external screw-pressure-plate back and side wire on those models, so you can back-wire a #12 branch circuit without a pigtail. Aluminum conductors are not covered by that rating.
2) Is the Pass & Seymour CSB20AC4 UL Listed and Federal Spec compliant?
It is UL Listed, CSA Listed, and built to Federal Spec standards. That combination is what lets it be used on government and institutional jobs where the drawing calls out a federal specification grade wiring device.
3) What is the closest equivalent to the Pass & Seymour CSB20AC4 toggle switch from another brand?
The nearest peer is the Bryant CSB2BW, a DPA Series wiring device switch rated at 277V. Both are hard-use commercial toggle switches in the same CSB family naming, so the Bryant is the most direct cross-brand swap. The Pass & Seymour CSB20AC4 is offered in brown, ivory, and white and accepts #14 to #10 AWG copper or copper-clad wire at side wire or external screw-pressure-plate back and side wire terminals, with Federal Spec, CSA, and UL Listing behind it.
4) I need a 20A AC switch with a pilot light instead of a plain toggle - what should I order?
For an illuminated switch, use the Bryant 4801GLI, a 4-Series 20A 277V lighted AC switch. The Pass & Seymour CSB20AC4 is a plain hard-use specification grade toggle with a high strength thermoplastic polycarbonate toggle and no indicator lamp, so if the crew needs to see switch status in a dark mechanical room or corridor, the lighted Bryant is the one to spec.
5) What do I use if I need to lock out the switch so tenants cannot operate it?
Specify the Bryant 4802L, a 4 Series single-pole locking AC switch rated 20A 277V. The Pass & Seymour CSB20AC4 is a standard toggle with heavy-duty toggle bumpers for smooth, quiet operation and no locking provision, so for a stairwell or common-area circuit that must stay under building control, the locking Bryant covers it.
6) Will a Pass & Seymour CSB20AC4 switch fit a standard single-gang box and plate?
Yes. The device body measures 3.281 in high, 1.32 in wide and 1.073 in deep, which is the standard toggle strap footprint for a single-gang wall box and a standard toggle wall plate. It mounts on a one-piece steel strap with an integral ground.
7) What colors does the CSB20AC4 hard use toggle switch come in?
Three: brown (CSB20AC4), ivory (CSB20AC4-I) and white (CSB20AC4-W). All three are the same hard use specification grade device with a matte finish, so you can standardize a building on one catalog number and just change the color suffix to match existing devices on the floor.
8) Why choose a hard use specification grade switch instead of a residential grade toggle?
It comes down to what is inside. The CSB20AC4 uses a one-piece brass alloy contact arm, oversized silver alloy contacts, and a positive-break cam that makes fast and breaks fast to cut arcing. The back body is glass-reinforced nylon with locking support so the face and back body do not separate under abuse, and the toggle is high-strength polycarbonate that resists chipping. For a corridor, classroom, shop or stairwell switched dozens of times a day, that is the difference between a five-year device and a one-year device.
9) What other brands make an equivalent 20A commercial AC toggle switch?
Bryant is the closest cross-brand line we carry. The Bryant 4802L is a 4 Series single-pole locking AC switch rated 20A 277V, and the Bryant 4801GLI is a 4-Series 20A 277V lighted AC switch if you want an illuminated toggle. For a 15A device instead, the Bryant 9801 is a BR Series 1-pole 15A 120/277V AC switch. Pick on the feature you need, locking or lighted, since the Pass & Seymour CSB20AC4 is a plain hard use toggle.
10) Can the Bussmann TPHCS-250 be used in place of a Pass & Seymour CSB20AC4?
No. The Bussmann TPHCS-250 is a TPH Series high-current switch rated 80 Vdc with 100kA SCCR, a DC power-distribution device, not a wall-box wiring device. The Pass & Seymour CSB20AC4 is an AC toggle switch for standard device boxes, measuring 3.281 in high by 1.32 in wide by 1.073 in deep with a one-piece steel strap and integral ground. The two are not interchangeable in either direction.
11) Is a 15A switch acceptable in place of the Pass & Seymour CSB20AC4 on a lighting circuit?
They are not the same device. The Bryant 9801 is a BR Series 1-pole switch rated 15A at 120/277V, while the Pass & Seymour CSB20AC4 is a hard use specification grade device rated for 20A service and built with oversized silver alloy contacts and a one-piece brass alloy contact arm. Check the circuit rating on the drawing before substituting down; a 20A branch circuit calls for the 20A device.
12) Does the CSB20AC4 need a separate ground screw or grounding pigtail?
No separate grounding accessory is needed. The steel strap has an integral ground and is plated for corrosion resistance, so the device grounds through the strap and mounting screws to a grounded metal box, or through the green terminal on the strap to a branch circuit ground.
13) Where is the Pass & Seymour CSB20AC4 switch made?
Country of origin is Mexico. Worth knowing up front if your project carries domestic-sourcing requirements on wiring devices.
How fast can I get the Pass & Seymour CSB20AC4 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pass & Seymour CSB20AC4 come with a warranty?
Absolutely. The Pass & Seymour CSB20AC4 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pass & Seymour CSB20AC4?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pass & Seymour CSB20AC4 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!