Pass & Seymour PS20AC3L Indust...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$89.66
$42.60
Pass & Seymour PS20AC3L Industrial Extra Heavy-Duty Specification Grade Switch, Back & Side Wire, Gray

Pass & Seymour PS20AC3L Industrial Extra Heavy-Duty Specification Grade Switch, Back & Side Wire, Gray

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Model: PS20AC3-L

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

$89.66
$42.60
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Pass & Seymour PS20AC3L Industrial Extra Heavy-Duty Specification Grade Switch, Back & Side Wire, Gray

The Pass & Seymour PS20AC3L is an Industrial Extra Heavy Duty Specification Grade switch finished in Gray, built for demanding commercial and industrial wiring applications. It features external screw-pressure-plate back and side wiring that accepts #14 - #10 AWG copper or copper-clad conductors, along with a nickel-plated steel strap and integral ground for durable, code-compliant installations. This switch is cULus Listed, giving electrical professionals confidence in its safety and performance for high-use environments.

Key Features

  • Wiring Method: External screw-pressure-plate back and side wired construction accepts #14 - #10 AWG copper or copper-clad conductors for flexible, secure terminations.
  • High-Strength Toggle: High strength thermoplastic polycarbonate toggle stands up to repeated heavy-duty operation.
  • Fast Cam Action: Cam controls a fast "make" and positive "break" to help minimize arcing during switching.
  • Durable Strap: Nickel-plated steel strap with integral ground supports reliable grounding and long-term corrosion resistance.
  • Heavy-Gauge Contact Arm: One-piece copper alloy contact arm virtually eliminates contact bounce for consistent switching performance.
  • Reinforced Back Body: Back body made of glass-reinforced nylon adds structural strength and heat resistance.
  • Oversized Silver Alloy Contacts: Oversized silver alloy contacts extend contact life and improve heat dissipation.
  • Quiet, Secure Design: Heavy-duty bumper pads enable quiet operation, while locking support resists face and back body separation; an auto-ground clip assures positive grounding, and a grounding terminal is standard. The shallow design also eases installation.

Certifications & Compliance

  • cULus Listed

Technical Specifications

  • Country Of Origin: Mexico
  • Product Color: Grey
  • 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 Switching for High-Traffic Areas
  • Heavy-Duty Panel and Device Wiring Requiring Back or Side Wire Terminations
  • Renovation and New Construction Wiring Projects
  • Applications Requiring cULus Listed Devices

Why Pass & Seymour?

Pass & Seymour engineers the PS20AC3L with a nickel-plated steel strap, glass-reinforced nylon back body, and a heavy-gauge one-piece copper alloy contact arm to deliver dependable, long-lasting switching performance. Features like the auto-ground clip, standard grounding terminal, and oversized silver alloy contacts reflect a specification-grade build designed for professional electricians who need reliable, cULus Listed devices for industrial and commercial work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Switch
Product Color:
Gray
Product Finish:
Matte
Connection Type:
Back and Side Wire
Listing:
cULus
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Switches
Product Depth:
1.073 in
Product Height:
3.281 in
Product Material:
Thermoplastic
Product Width:
1.32 in

Pass & Seymour PS20AC3-L – Frequently Asked Questions

1) What wire size does the Pass & Seymour PS20AC3L switch accept, and can I back-wire it?
The PS20AC3L takes #14 through #10 AWG copper or copper-clad conductors on external screw pressure plates, and those plates work either back wired or side wired. That gives you a solid termination on #12 branch circuits without having to form a loop around a screw, which is the usual reason electricians reach for this style on a long run of switches.
2) Do I need a separate ground pigtail for this switch, or does it self-ground?
Both options are there. The PS20AC3L has a nickel-plated steel strap with integral ground plus an auto-ground clip for positive grounding through the yoke and a metal box, and a grounding terminal is standard if you prefer to land a green wire on the screw.
3) What other extra heavy-duty industrial toggle switches could I use instead of the Pass & Seymour PS20AC3L?
Leviton's 1221-2W is the closest cross-brand equivalent we carry, an Extra Heavy-Duty Industrial Specification Grade single-pole toggle rated 20A at 120/277V AC. If the circuit needs three-way control, the Leviton 1223-PLR is a specification grade 3-way with a pilot light. For a double-pole, double-throw center-off application, the Leviton 1286-W is a 20A DPDT center-off in the same grade. All three are white-family devices rather than gray, so finish matching is the trade-off.
4) I need a switch that can be locked off for maintenance. Is this the right one?
No. The PS20AC3L is a standard toggle with no locking provision. For lockable control we carry the Bryant 4802L, a 4 Series single-pole locking AC switch rated 20A 277V, and the Leviton 1221-2IL, an industrial grade SPST locking toggle rated 20A 120/277V. Either of those is what you want where the switch has to stay off during service work.
5) What is the closest equivalent to the Pass & Seymour PS20AC3L from another brand?
The Leviton 1221-2W is the nearest match: it is an extra heavy-duty industrial specification grade SPST toggle switch rated 20A at 120/277V AC. The PS20AC3L is likewise an industrial extra heavy-duty specification grade switch with back and side wire terminations. The Leviton is cataloged in white, while the Pass & Seymour is gray with a matte finish, so confirm the device color matches the rest of the opening.
6) I need a three-way switch instead of the PS20AC3L - what should I use?
The PS20AC3L is a single-device industrial extra heavy-duty specification grade switch. For three-way switching, the Leviton 1223-PLR is a 3-way extra heavy-duty industrial grade toggle switch with a pilot light, rated 20A 120V. Note the pilot light is integral to that device, so it will show an illuminated toggle at the wall even where you only wanted the 3-way function.
7) Will the PS20AC3L fit in a shallow or crowded switch box?
The body is a shallow design, which is specifically called out as easing installation, and the device measures 3.281 in high by 1.32 in wide by 1.073 in deep. In a box already packed with conductors, that depth is what decides whether the device seats without bowing the wires, and 1.073 in is on the short side for a spec grade toggle.
8) Is this switch listed for commercial and industrial work?
The PS20AC3L is cULus Listed, so it carries both the US and Canadian listing marks, and it is built as an Industrial Extra Heavy Duty Specification Grade device for commercial and industrial wiring.
9) Why pay for a specification grade toggle instead of a residential switch in a high-traffic building?
The build is where the money goes: oversized silver alloy contacts for longer contact life and better heat dissipation, a one-piece heavy-gauge copper alloy contact arm that virtually eliminates contact bounce, a cam that gives a fast make and positive break to limit arcing, a glass-reinforced nylon back body, and a high-strength thermoplastic polycarbonate toggle. On a corridor or restroom switch cycled dozens of times a day, that is what keeps you off the callback list.
10) Does the PS20AC3L have a pilot light or indicator so I can tell it is on from down the hall?
No indicator on this one, it is a plain gray toggle. If you need a lit device, the Bryant 4801GLI is a 4-Series 20A 277V lighted AC switch, and the Leviton 1223-PLR adds a pilot light on a 3-way specification grade body.
11) What is a lighter-duty alternative if the PS20AC3L is more switch than a 15A branch circuit needs?
The Bryant 9801 is a BR Series 1-pole AC switch rated 15A at 120/277V, which covers a 15A lighting circuit without the extra heavy-duty industrial build of the PS20AC3L. The Eaton 275VBOX is a commercial grade decorator duplex combination switch at 15A with auto-ground, in white. Both sit below the PS20AC3L's specification-grade construction, which uses a nickel-plated steel strap, glass-reinforced nylon back body, and oversized silver alloy contacts for high-cycle service.
12) If I need to see at a glance whether the load is on, is there a switch with an indicator instead of the PS20AC3L?
The Bryant 4801GLI is a 4-Series 20A 277V lighted AC switch, which gives a visible indication at the device. The PS20AC3L has no indicator - its cam gives a fast make and positive break but no lighted toggle - so for mechanical rooms or remote loads where the fixture is out of sight, the lighted device is the one to specify. The Leviton 1223-PLR also carries a pilot light, but it is a 3-way device.
13) Will a Leviton 1286-W drop in where a PS20AC3L is installed?
Not as a like-for-like function swap. The 1286-W is a 20A DPDT center-off toggle switch of industrial/specification grade, so it switches two poles and has a center off position for applications such as motor reversing or two-source selection. The PS20AC3L is a single industrial extra heavy-duty specification grade switch with back and side wire terminations. If the existing wiring is a simple single-pole lighting leg, the DPDT device gives you more poles than the circuit uses.
14) What looks like a substitute for the PS20AC3L but is not?
The Eaton 275VBOX is a decorator duplex combination switch - two switching functions in one strap in a decorator body, commercial grade, 15A, white - so it needs a decorator-style plate and does not match a toggle opening. The Bryant CSB2BW is a DPA Series 277V wiring device switch, a different series and configuration. For a straight toggle replacement on a 20A circuit, stay with a single-pole industrial toggle such as the Leviton 1221-2W.
15) What color and finish is the PS20AC3L, and will it match my existing devices?
It is gray with a matte finish. Gray is the common choice for mechanical rooms, back-of-house, and industrial spaces where white devices show dirt. If your openings are standardized on white or ivory faces, this one will not match visually, though the electrical function is unchanged.
16) Is the PS20AC3L a quiet switch? I'm specifying for occupied offices and patient rooms.
Heavy-duty bumper pads are built in for quiet operation, and the cam gives a positive break rather than a drawn-out one. A locking support between the face and back body resists the two separating over years of use, which is the other thing that starts a switch rattling.
17) What is the exact part number and country of origin for ordering the Pass & Seymour gray spec grade switch?
Order it as Pass & Seymour PS20AC3L, manufacturer part number PS20AC3-L. It is made in Mexico.
18) Does a wall plate come with the PS20AC3L switch?
No wall plate is included. The PS20AC3L is the switch body only, so plan on a standard single-gang toggle plate separately. If you are matching the gray device, order a gray plate, otherwise the face and plate will not agree.
19) Which 20A industrial switch should I standardize on across a facility where devices are gray?
The Pass & Seymour PS20AC3L is supplied in gray with a matte finish, so it keeps a consistent device appearance where gray plates and receptacles are already in place, and it is cULus Listed with back and side wire terminations accepting #14 to #10 AWG copper. The comparable industrial toggles - the Leviton 1221-2W and the Eaton 275VBOX - are cataloged in white, so mixing them into a gray scheme shows at the wall.
How fast can I get the Pass & Seymour PS20AC3-L 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-L come with a warranty?
Absolutely. The Pass & Seymour PS20AC3-L 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-L?
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
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