Leviton 20 Amp, 120/277 Volt Decora Plus Rocker Single-Pole

The Verdict

Most homeowners grab whatever switch is on the shelf at the big-box store. That’s fine for a 15-amp bedroom circuit. But when you’re wiring a shop, a commercial space, or a heavy-duty appliance circuit, you need something with real guts. The Leviton 20 Amp Decora Plus Rocker Single-Pole is that switch. And with a 4.7-star average across 235 ratings, it’s not just me saying so.

What you’re actually getting

Inside the box: one switch, two mounting screws, and that’s it. No wire nuts, no instructions worth reading — if you need a manual for a single-pole switch, call an electrician. The body is the familiar Decora Plus form factor: a 1.2-inch wide rocker face that fits standard wall plates. What sets it apart is the 20-amp rating at both 120V and 277V. That 277-volt spec matters if you’re working with commercial lighting circuits — most residential switches top out at 120V.

The terminals accept #14 to #10 AWG wire, and you get both side screws and back-wiring holes. For solid copper, that back-wire option speeds up rough-in work considerably. Stranded wire? Use the screws.

Build quality and real-world handling

The rocker action is where this switch earns its keep. It’s a smooth, positive toggle — you feel the contact click, not a vague wobble. The internal mechanism uses a snap-action design that reduces arcing at the contacts, which is a genuine durability factor at 20 amps. One buyer noted, “I’ve replaced cheap switches every few years in my workshop. This one has been in service for 18 months with a dust collector and table saw on the same circuit — no heat, no flicker, no issues.”

The body is the usual Leviton thermoplastic — tough, doesn’t crack when you overtighten the mounting screws, and the rocker doesn’t yellow over time. The face is glossy enough to wipe clean but not so slick it looks cheap.

What buyers consistently praise

The 4.7-star rating holds up across reviewer patterns. Three things come up repeatedly:

1. The 20-amp rating with 277V compatibility — “Finally found a switch rated for our 277V office lighting without special ordering,” wrote one commercial property manager.
2. Installation ease — The back-wire option gets frequent mentions. “Took me five minutes to swap out an old toggle. The back-wiring made it a one-person job.”
3. Reliability — Multiple reviewers note zero failures over years of service on high-draw tools or frequent cycling.

Where it falls short

Honest assessment: this isn’t a perfect switch. The side-mounted grounding screw sits low on the body, and in a shallow single-gang box, getting a screwdriver on it is a finger-twisting exercise. Plan for that if you’re doing a retrofit.

The body is also slightly bulkier than a standard 15-amp Decora switch. In older boxes packed with wires, you might need to trim back conductors to get a clean fit. One reviewer mentioned, “I had to do some careful wire folding to get it seated in a 1960s box. Not a dealbreaker, but be prepared.”

And if you’re a homeowner on a standard 15-amp lighting circuit — you don’t need this. The extra capacity costs more for zero functional benefit.

Who should buy this

• Workshop owners running 20-amp circuits for table saws, dust collectors, or air compressors
• Commercial maintenance folks dealing with 277V lighting circuits
• DIYers doing a kitchen or shop rewire where code requires 20-amp-rated devices
• Anyone tired of replacing cheap switches every few years on high-draw loads

FAQ

Q: Can I use this on a standard 15-amp residential circuit? Yes, a 20-amp-rated switch is safe on a 15-amp circuit. But you’re paying for capacity you won’t use. Save the money unless you plan to upgrade the circuit.

Q: Does it work with standard Decora wall plates? Yes. It fits any standard Decora-style wall plate. Just match the color — white, ivory, and light almond are common options.

Q: Is this switch rated for aluminum wiring? No. It’s rated for copper and copper-clad wire only. If you have aluminum branch circuits, you need CO/ALR-rated devices.

The Verdict

Rating: 4.6/5 ⭐⭐⭐⭐½

Buy it if you need a genuinely heavy-duty switch for 20-amp circuits or 277V commercial lighting. The build quality, positive rocker action, and wiring flexibility justify the price premium over bargain switches.

Skip it if you’re just swapping a switch on a standard 15-amp lighting circuit — a standard 15-amp Decora switch will serve you fine for less money.

This is a professional-grade component from a brand that’s been doing this since 1906. It’s not flashy, but it’s the kind of switch you install once and forget about — which is exactly what a good switch should do.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.