Pass & Seymour PS20AC3I Indust...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$114.20
$71.86

Pass & Seymour PS20AC3I Industrial Extra Heavy Duty Specification Grade Toggle Switch, Ivory

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Model: PS20AC3-I

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

$114.20
$71.86
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Pass & Seymour PS20AC3I Industrial Extra Heavy Duty Specification Grade Toggle Switch, Ivory

The Pass & Seymour PS20AC3I is an Industrial Extra Heavy Duty, Specification Grade toggle switch finished in Ivory and built for demanding commercial and industrial duty cycles. It features a heavy-duty, brass alloy, one-piece contact arm that virtually eliminates contact bounce, oversized silver-alloy contacts for long life and better heat dissipation, and side and external screw-pressure-plate back wire terminals accepting #14 - #10 AWG copper or copper-clad wire. The switch is cULus Listed and Federal Spec Listed, making it suitable for applications requiring specification-grade compliance and long-term reliability.

Key Features

  • Wiring: Side and external screw-pressure-plate back wire accepts #14 - #10 AWG copper or copper-clad wire, with a grounding terminal standard on screw-pressure plate back wire.
  • Durable Contact System: Heavy-duty, brass alloy, one-piece contact arm virtually eliminates contact bounce, paired with oversized silver-alloy contacts for long life and better heat dissipation.
  • Grounding: Auto-ground clip assures positive ground for consistent, code-compliant grounding performance.
  • Cover & Toggle: Impact- and chemical-resistant cover with a one-piece toggle molded from chemical-, impact-, and heat-resistant thermoplastic for long-term durability.
  • Body Construction: Glass-reinforced, chemical-resistant thermoplastic back body resists harsh cleaners, with locking support that resists face and back body separation.
  • Strap: One-piece nickel-plated brass strap provides superior corrosion resistance.
  • Operation: Cam control and spring actuator deliver positive makes and breaks, while heavy-duty bumpers ensure quiet, smooth operation.
  • Installation: Shallow design allows for easier installation in existing boxes and tight enclosures.

Certifications & Compliance

  • cULus Listed
  • Federal Spec 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

  • Industrial and Commercial Electrical Installations
  • Specification-Grade Lighting and Load Switching
  • Heavy-Duty, High-Traffic Switching Applications
  • Facilities Requiring Federal Spec Compliance
  • Renovation and New Construction Wiring Projects

Why Pass & Seymour?

Pass & Seymour engineers the PS20AC3I with a brass alloy one-piece contact arm, oversized silver-alloy contacts, and a glass-reinforced thermoplastic back body to withstand heavy industrial duty cycles. Backed by cULus Listing and Federal Spec compliance, this Specification Grade toggle switch delivers the reliable, code-compliant performance professional electricians expect from Pass & Seymour.

Manufacturer Resources

Product Specs

Product Type:
3-Way Toggle Switch
Product Color:
Ivory
Product Finish:
Matte
Connection Type:
Screw-Pressure Plate
Listing:
cULus
Standards:
Federal Spec
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Toggle Switches
Product Width:
1.32 in
Product Depth:
1.073 in
Product Height:
3.281 in
Product Material:
Thermoplastic

Pass & Seymour PS20AC3-I – Frequently Asked Questions

1) What wire sizes will the Pass & Seymour PS20AC3I switch accept, and can I back-wire it?
The PS20AC3I takes #14 through #10 AWG copper or copper-clad wire. You can land conductors on the side screws or use the external screw-pressure-plate back wire terminals, so #10 branch circuits in a commercial lighting run are no problem. The grounding terminal comes standard on the screw-pressure plate back wire.
2) Is the Pass & Seymour PS20AC3I approved for a federal or government specification job?
Yes. It is cULus Listed and Federal Spec Listed, which is why it gets written into government, institutional and military facility packages where a commercial-grade device would be rejected on submittal.
3) What is the closest equivalent to the Pass & Seymour PS20AC3I from another manufacturer?
The Leviton 1221 is the nearest match: it is an extra heavy-duty industrial specification grade SPST toggle switch rated 20A at 120/277V, the same specification-grade single-pole class as the PS20AC3I, which is an industrial extra heavy duty specification grade toggle switch in ivory. The Leviton 1221-2KL is also an extra heavy-duty spec grade 1-pole toggle switch at 20A, 120/277V. Confirm the color you need, since the PS20AC3I is supplied in ivory with a matte finish.
4) Does spec grade actually buy me anything over a commercial grade toggle switch?
On a high-cycle opening, yes. The PS20AC3I is an Industrial Extra Heavy Duty, Specification Grade device: brass alloy one-piece contact arm that virtually eliminates contact bounce, oversized silver-alloy contacts for longer life and better heat dissipation, a one-piece nickel-plated brass strap for corrosion resistance, and cam-and-spring actuation for positive makes and breaks. A commercial grade switch like the Bryant 4903 is the lighter-duty answer for a tenant space or office that gets switched a few times a day.
5) Will the PS20AC3I hold up in a kitchen, lab or wash-down area where surfaces get cleaned with harsh chemicals?
It's built for it. The back body is glass-reinforced, chemical-resistant thermoplastic that resists harsh cleaners, the cover is impact- and chemical-resistant, and the one-piece toggle is molded from chemical-, impact- and heat-resistant thermoplastic. Locking support between the face and back body resists separation. The ivory finish is matte rather than gloss, so it does not telegraph scuffs the way a gloss device does.
6) Do I need to run a separate bonding jumper to the switch yoke?
The PS20AC3I has an auto-ground clip that establishes a positive ground through the mounting strap to a grounded metal box, plus a dedicated grounding terminal on the screw-pressure plate back wire. In a plastic box, or any installation where the box is not grounded, land the equipment grounding conductor on that green terminal.
7) I need the same extra heavy duty spec grade switch but in white, or in a three-way. What else is there?
The PS20AC3I is the ivory single device. If you need a different brand or configuration, the Leviton 1221 is an extra heavy-duty industrial specification grade SPST at 20A, 120/277V, and the 1221-2KL is Leviton's extra heavy-duty spec grade 1-pole 20A 120/277V version. For three-way switching, the Eaton Arrow Hart industrial grade three-way runs 20A at 120/277V, and the Bryant 4903W is a 20A 277V three-way in commercial grade. If you want a pilot light on the device, Leviton's 1201PLC and 1221-2L are industrial grade pilot light switches.
8) Can I use the Ideal 774005 heavy-duty toggle switch in place of the PS20AC3I in a wall box?
No - they are different device classes. The PS20AC3I is a wall-box wiring device with side and external screw-pressure-plate back wire terminals accepting #14 to #10 AWG copper or copper-clad wire and an auto-ground clip. The Ideal Industries 774005 is a heavy-duty DPST on-off toggle switch with spade terminals, a panel- or equipment-style switch rather than a strap-mounted wiring device, and it is double-pole rather than single-pole. Use the PS20AC3I or another spec grade wiring device for branch-circuit wall switching.
9) Is there a commercial grade toggle switch I can use in lower-traffic areas instead of the spec grade PS20AC3I?
Yes. The PS20AC3I is built as an industrial extra heavy duty specification grade device with a one-piece brass alloy contact arm and oversized silver-alloy contacts for heavy duty cycles. Where that level is more than the opening needs, the Bryant 4903W is a commercial grade AC toggle switch at 20A 277V, and the Bryant 4801W is a 4-Series single-pole switch rated 15A 277V AC. Note the 4801W is a 15A device, so check your branch circuit and load before substituting it for a 20A switch.
10) My spec calls for a Federal Spec listed switch - which of these qualify?
The Pass & Seymour PS20AC3I is cULus Listed and Federal Spec Listed, which is why it is specified on government and institutional jobs. Among the comparable single-pole devices, the Leviton 1221 and 1221-2KL are extra heavy-duty specification grade 20A 120/277V switches in the same class, while the Eaton Arrow Hart AH-1223GY and Leviton 1201PLC are described as industrial grade. If the drawing calls out Federal Spec by name, the PS20AC3I carries that listing directly.
11) Is a wall plate included with the PS20AC3I switch?
No. The PS20AC3I ships as the device only, so you order the wall plate separately. For a clean match on an ivory device, specify an ivory standard-size toggle plate; most spec jobs call for a smooth nylon or stainless plate depending on the facility standard.
12) Why does contact bounce matter when I'm choosing a switch for a high-traffic corridor?
Contact bounce is what burns up a switch's contacts and shortens its life in an opening that gets operated dozens of times a day. The PS20AC3I uses a heavy-duty brass alloy one-piece contact arm that virtually eliminates it, with oversized silver-alloy contacts to spread heat, plus heavy-duty bumpers for quiet, smooth operation. In a corridor, classroom or stairwell where tenants complain about switch noise, those bumpers are the detail that settles it.
13) Where is the Pass & Seymour PS20AC3I made, and what part number do I put on the purchase order?
Order it as Pass & Seymour PS20AC3I, MPN PS20AC3-I, in ivory. Country of origin is Mexico, which is the detail to confirm against any domestic-content requirement on a federally funded job.
How fast can I get the Pass & Seymour PS20AC3-I 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 PS20AC3-I come with a warranty?
Absolutely. The Pass & Seymour PS20AC3-I 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 PS20AC3-I?
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