Leviton 1221-2KL Extra Heavy-D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$171.33
Leviton 1221-2KL Extra Heavy-Duty Spec Grade 1-Pole Toggle Switch, 20A, 120/277V

Leviton 1221-2KL Extra Heavy-Duty Spec Grade 1-Pole Toggle Switch, 20A, 120/277V

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Model: 1221-2KL

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

$171.33
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Leviton 1221-2KL Extra Heavy-Duty Spec Grade 1-Pole Toggle Switch, 20A, 120/277V

The Leviton 1221-2KL is an Extra Heavy-Duty Industrial/Specification Grade 1-Pole toggle switch built for demanding commercial and industrial electrical systems. Rated for 120/277-Volt AC service at 20-Amp, this switch delivers dependable single-circuit control in applications that require spec-grade durability well beyond standard residential-grade devices. Its rugged toggle-actuated design is engineered for high-cycle, high-traffic switching environments where consistent performance and long service life are essential.

Key Features

  • Electrical Rating: 120/277-Volt AC, 20-Amp rating supports heavy-duty circuit switching in commercial and industrial power systems.
  • Pole Configuration: 1-Pole design provides straightforward single-circuit on/off control.
  • Extra Heavy-Duty Construction: Industrial/Specification Grade build quality is intended for demanding environments that see frequent, heavy use.
  • Toggle Actuation: Standard toggle switch operation delivers familiar, reliable manual control for lighting and power circuits.
  • Specification-Grade Reliability: Engineered to a higher performance standard than general-purpose switches, suited for commercial and industrial specification requirements.

Technical Specifications

  • Voltage Rating: 120/277-Volt AC
  • Current Rating: 20-Amp
  • Poles: 1-Pole
  • Grade: Extra Heavy-Duty Industrial/Specification Grade
  • List Batch: LEV-20260730

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Specification-Grade Switching Projects
  • Lighting and Power Circuit Control
  • High-Traffic Commercial Facilities
  • New Construction and Renovation Wiring

Why Leviton?

Leviton's Extra Heavy-Duty Industrial/Specification Grade switches are engineered to withstand the demands of continuous commercial and industrial use, offering a level of durability and reliability that specification writers and electrical contractors depend on. With a 120/277-Volt AC, 20-Amp, 1-Pole rating, the 1221-2KL is built to perform in facilities where switching devices are used frequently and must hold up over the long term, helping ensure code-compliant, dependable performance on every project.

Manufacturer Resources

Technical Information

Product Specs

Product Type:
Single-Pole Toggle Switch
Amperage Rating:
20A
Voltage Rating:
120/277V
Poles:
1
Grade:
Specification
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Toggle Switches

Leviton 1221-2KL – Frequently Asked Questions

1) Can the Leviton 1221-2KL be used on a 277V lighting circuit?
Yes. The 1221-2KL is rated 120/277V AC at 20A, so it works on both standard 120V branch circuits and the 277V lighting circuits common in commercial buildings running 480/277V three-phase service. One device covers both, which is why spec writers use it across a whole facility instead of stocking two switches.
2) What else does ZenSupply carry that is an equivalent to the Leviton 1221-2KL?
For a straight like-for-like at the same grade, the Pass & Seymour PS20AC3W is an industrial extra heavy duty specification grade 20A toggle switch in white. If you want spec grade but one tier down from industrial extra heavy duty, the Pass & Seymour CS20AC3I is a commercial 20A specification grade toggle in ivory. Both are single-device substitutions on the same box and yoke pattern as any standard toggle switch.
3) What is the closest equivalent to the Leviton 1221-2KL from another manufacturer?
The Pass & Seymour PS20AC3W is the nearest match. It is an industrial extra heavy duty specification grade toggle switch rated 20A, which lines up with the 1221-2KL's specification grade build and 20A rating. The Leviton 1221-2KL is a 1-pole device rated 120/277V AC; the PS20AC3W is supplied in white. If you are standardizing a facility on one spec-grade toggle, either device covers the same extra heavy duty duty class.
4) Can I use a Bryant 4801W in place of the Leviton 1221-2KL?
Only if the circuit is 15A. The Bryant 4801W is a 4-Series single-pole toggle switch rated 15A at 277V AC in white, so the pole configuration matches the 1-pole Leviton 1221-2KL but the ampacity does not. The 1221-2KL is rated 20A at 120/277V. On a 20A branch circuit requiring a 20A-rated switch, the 4801W is not a valid substitute.
5) Will a 20A switch work on a 15A lighting circuit?
Yes. A 20A switch on a 15A circuit is fine, and it is the normal spec-grade practice because the switch is rated above the branch circuit breaker. The reverse is not allowed: a 15A switch cannot be used to control a 20A circuit. The 1221-2KL is rated 20A.
6) What is the difference between a spec grade switch like this and a residential grade one?
Grade is the durability tier, not the electrical rating. The 1221-2KL is built to Extra Heavy-Duty Industrial/Specification Grade, meaning it is intended for high-cycle switching in commercial and industrial service, where a residential grade device would be replaced far sooner. For property managers with corridor, stairwell, or restroom lighting that gets switched dozens of times a day, that is the reason to pay for spec grade.
7) Do I get a wall plate with the Leviton 1221-2KL?
No. The 1221-2KL is the switch device itself, a 1-pole toggle switch. A wall plate is a separate line item, so add a single-gang toggle plate (or the correct multi-gang plate if it is ganging with other devices) to the order to finish the install.
8) My spec sheet calls for a 277V-rated switch for fluorescent lighting - which of these qualify?
The Leviton 1221-2KL is rated 120/277V AC at 20A, so it covers both 120V and 277V lighting branches from one part number. The Eaton Arrow Hart industrial grade three-way toggle also carries a 20A, 120/277V rating if the circuit needs three-way control. The Bryant 4801W is rated 277V AC but at 15A, so it suits 277V circuits only where a 15A switch is acceptable.
9) Is there a less heavy-duty spec grade toggle switch than the Leviton 1221-2KL for lighter commercial use?
Yes. The Pass & Seymour CS20AC3I is a commercial 20A specification grade toggle switch in ivory. It holds the same 20A specification grade classification, but it is a commercial grade device rather than the extra heavy duty industrial/specification grade construction the Leviton 1221-2KL uses. For tenant offices and lower-cycle rooms the commercial device is the common choice; for high-cycle corridors, shops and plant areas the extra heavy duty 1221-2KL is the one specification writers call out.
10) What are the Pass & Seymour TradeMaster 660G and 663LAG, and would either work as a substitute here?
Both are TradeMaster grounding toggle switches in thermoplastic - the 660G in brown satin and the 663LAG in light almond. They are a different product family from the Leviton 1221-2KL, which is an extra heavy duty industrial/specification grade device rated 20A at 120/277V. Reach for a TradeMaster where the color needs to match existing brown or light almond devices in a residential or light commercial space; keep the 1221-2KL where the drawing calls for spec-grade 20A switching.
How fast can I get the Leviton 1221-2KL 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 Leviton 1221-2KL come with a warranty?
Absolutely. The Leviton 1221-2KL 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 Leviton 1221-2KL?
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 Leviton 1221-2KL from ZenSupply?
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