Eaton Commercial Grade Three-W...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.59
Eaton Commercial Grade Three-Way Toggle Switch, 20A, 120/277V

Eaton Commercial Grade Three-Way Toggle Switch, 20A, 120/277V

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Model: CS315LA

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

$4.59
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Eaton Commercial Grade Three-Way Toggle Switch, 20A, 120/277V

The Eaton Commercial Grade Three-Way Toggle Switch is a single-pole, three-way toggle switch built for reliable multi-location lighting control in commercial wall installations. Rated 20A at 120/277V and cULus Listed, it accepts #14-10 AWG wire through side-wire screw terminals with a copper alloy terminal enclosure, delivering dependable performance for demanding commercial applications.

Key Features

  • Three-Way Switching: Single-pole, three-way toggle configuration allows lighting control from multiple switch locations.
  • 20A, 120/277V Rating: Commercial-grade electrical rating supports demanding load requirements in commercial buildings.
  • Wide Wire Compatibility: Accepts #14-10 AWG wire via side-wire, screw-type terminals for flexible field wiring.
  • Durable Construction: PVC housing paired with a copper alloy terminal enclosure for long-term durability and consistent contact performance.
  • Precision Terminals: 0.031 in terminal thickness engineered for secure, code-compliant wire connections.
  • Compact Wall-Mount Design: Measures 4.2 in in height, .902 in in width, and 1.3 in in depth for standard wall box mounting.
  • Light Almond Finish: Light almond color coordinates with common commercial interior finishes.

Certifications & Compliance

  • cULus Listed

Technical Specifications

  • Product Material: PVC
  • Department: Electrical
  • Mounting Method: Wall
  • Terminals: 0.031 in
  • Voltage Rating: 120/277 V
  • Application: Commercial
  • Number of Poles: Single-pole
  • Wiring Method: Side wire
  • Allowable Wire Size: #14-10 AWG
  • Terminal Enclosure Material: Copper alloy
  • Connector Type: Screw

Typical Applications

  • Commercial Wall Switch Installations
  • Multi-Location Lighting Control
  • Office, Retail, and Institutional Buildings
  • New Construction and Renovation Wiring Projects

Why Eaton?

Eaton builds this three-way toggle switch with a copper alloy terminal enclosure and durable PVC housing to deliver reliable, code-compliant performance for professional electrical work. Backed by cULus Listing, it is engineered to provide dependable multi-location switching for commercial-grade installations that demand consistent quality.

Manufacturer Resources

Product Specs

Mounting Method:
Wall
Terminals:
0.031 in
Voltage Rating:
120/277V
Application:
Commercial
Product Height:
4.2 in
Product Type:
3-Way Toggle Switch
Number of ways:
Three-way
Switch Classification:
Three-way
Certifications:
cULus Listed
Number Of Poles:
Single-pole
Product Width:
.902 in
Product Color:
Light Almond
Wiring Method:
Side wire
Product Length/Depth:
1.3 in
Product Material:
PVC
Allowable Wire Size:
#14-10 AWG
Terminal enclosure material:
Copper alloy
Connector Type:
Screw
Department:
Electrical
Configuration:
Three-Way
Amperage Rating:
20A
Connection Type:
Screw
Listing:
cULus
Product Group:
Wiring Devices
Product Subgroup:
Toggle Switches
Product Length:
1.3 in

Eaton CS315LA – Frequently Asked Questions

1) Will the Eaton CS315LA three-way toggle switch work on a 277V lighting circuit?
Yes. The Eaton commercial grade three-way toggle switch is rated 120/277V, so it works on both standard 120V branch circuits and 277V commercial lighting circuits fed from a 480Y/277 system. It is cULus Listed.
2) What is the difference between the Eaton CS315LA and CS320LA three-way switches?
Amperage. CS315LA is the 15 amp version and CS320LA is the 20 amp version. Both are the same light almond three-way toggle. Pick the 20 amp CS320LA if you are on a 20 amp lighting branch circuit and your spec calls for a switch rated to match the breaker.
3) Can I use this Eaton toggle switch with #12 THHN, and does it take back wiring?
It accepts #14 through #10 AWG on screw terminals, so #12 THHN is squarely in range. Wiring is side wire only, screw type, with a copper alloy terminal enclosure. If your crew prefers push-in back wiring, this is not that device.
4) It says single-pole but also three-way. Which is it, and can I use it for a single switch location?
It is a single-pole, three-way device: one common terminal and two travelers, used in pairs so one light can be controlled from two locations. Do not drop it in where a plain single-pole on/off is wanted unless you land the load on the common and cap a traveler. For a straight one-location switch, a true single-pole like the Leviton 1221 20A 120/277V SPST is the right part.
5) What single-pole toggle switch matches the Eaton CS320LA rating if the circuit only needs on/off from one location?
The Eaton CS320LA is a three-way switch rated 20A at 120/277V. For a single-location on/off circuit at the same rating, the Leviton 1221 is a single-pole, single-throw toggle switch rated 20A 120/277V in extra heavy-duty industrial specification grade, and the Leviton 1221-2KL is a 1-pole toggle switch rated 20A, 120/277V in extra heavy-duty spec grade. A three-way switch wired into a single-pole circuit leaves an unused traveler terminal, so the single-pole device is the cleaner fit.
6) Can the Bryant 4801W be used in place of the Eaton three-way toggle switch?
No. The Bryant 4801W is a 4-Series single-pole 15A 277V AC toggle switch in white, which controls a load from one location only. The Eaton CS315LA and CS320LA are three-way devices for multi-location lighting control, and the Eaton is light almond rather than white. Use the Bryant only where a straight single-pole switch is called for.
7) Will this Eaton switch fit a standard single-gang wall box?
It is a wall-mount device measuring 4.2 in height, .902 in width, and 1.3 in depth, which is standard strap-and-yoke toggle geometry for a single-gang box. Depth of 1.3 in is what you check against a shallow old-work box packed with #10 conductors.
8) I need the new three-way to match light almond devices already in the building. What else matches?
The Eaton CS315LA and CS320LA are light almond, so they sit next to existing light almond receptacles and plates without a color break. Pass & Seymour's 663LAG TradeMaster grounding toggle is another light almond thermoplastic option if you are filling out a job in the same color family.
9) Is this Eaton toggle switch heavy enough for an office or retail building, or should I be looking at spec grade?
This one is built for commercial application with a PVC housing and copper alloy terminal enclosure, and it is cULus Listed. If your drawings specifically call out extra heavy duty specification grade, look at the Leviton 1221-2KL or the Pass & Seymour PS20AC3W instead, both listed as specification grade, and the Pass & Seymour CS20AC3I as a 20A commercial specification grade toggle.
10) For a heavy-traffic industrial opening, what toggle switch is used instead of the Eaton commercial grade three-way?
The Eaton CS320LA is a commercial grade device. Where an extra heavy duty industrial spec is written, the Pass & Seymour PS20AC3W is an industrial extra heavy duty specification grade toggle switch in white, and the Leviton 1221 is an extra heavy-duty industrial specification grade SPST switch rated 20A 120/277V. Both of those are single-pole, so they do not replace the Eaton where three-way control is required.
11) Is there a light almond toggle switch that matches the Eaton CS315LA color on adjacent devices?
Yes. The Eaton CS315LA is finished in light almond, and the Pass & Seymour 663LAG TradeMaster grounding toggle switch is a light almond thermoplastic device, so the two coordinate on a multi-gang plate. The Eaton is the three-way device; confirm the switching function you need at each box before mixing them.
12) How does the Eaton CS320LA compare with the Pass & Seymour CS20AC3I for a commercial spec job?
Both are commercial 20A toggle switches. The Eaton CS320LA is rated 20A at 120/277V, is cULus Listed, and is a three-way device in light almond. The Pass & Seymour CS20AC3I is a commercial 20A specification grade toggle switch in ivory. The practical differences are the finish and the switching function, so verify you need three-way travelers before swapping one for the other.
13) What is the terminal thickness on the Eaton commercial three-way toggle, and why does it matter?
Terminals are 0.031 in thick with a copper alloy enclosure. That gauge is what keeps the clamped connection tight under the heat cycling of a 20A lighting load, and it is the reason the device takes conductors up to #10 AWG without the screw plate deforming.
14) What is a simpler alternative to the Eaton CS315LA for a residential-style single-switch replacement?
The Pass & Seymour 660G Trademaster grounding toggle switch is a brown satin thermoplastic device and the 663LAG TradeMaster grounding toggle switch is light almond thermoplastic; both are single-location toggle devices in the TradeMaster line. The Eaton CS315LA is a three-way commercial-grade switch with screw-type side-wire terminals accepting #14-10 AWG, so choose it when the opening actually has travelers running to a second switch.
How fast can I get the Eaton CS315LA delivered?
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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 Eaton CS315LA come with a warranty?
Absolutely. The Eaton CS315LA 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 Eaton CS315LA?
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