Bryant 4903 Series 3-Way 20A 2...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$16.31
Bryant 4903 Series 3-Way 20A 277V AC Toggle Switch

Bryant 4903 Series 3-Way 20A 277V AC Toggle Switch

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Model: CS320BLA

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

$16.31
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Bryant 4903 Series 3-Way 20A 277V AC Toggle Switch

The Bryant 4903 Series 3-Way 20A 277V AC Toggle Switch delivers heavy-duty two-location control for lighting and other alternating current loads in commercial and residential electrical systems. Rated 20A at 277V AC, this 3-way toggle switch handles the higher-voltage demands of commercial lighting circuits while remaining equally suited to standard residential switching applications. This family is available in Black, Ivory, Standard, and White finishes, giving electricians and specifiers a consistent 20A, 277V AC switching platform across a range of device colors to match any installation. Bryant electrical devices are specified by contractors and facility managers who need dependable, code-compliant hardware for everyday switching tasks, and the 4903 Series continues that standard.

Key Features

  • 3-Way Switching Configuration: Enables control of a single AC load from two separate switch locations, ideal for hallways, stairways, garages, and rooms with multiple entry points that require independent on/off control.
  • 20A Amperage Rating: Rated to safely carry 20A of current, giving it the capacity for demanding lighting circuits and general-purpose AC loads found in commercial and residential wiring.
  • 277V AC Voltage Rating: Suitable for 277V AC applications, a voltage commonly used in commercial lighting circuits fed from three-phase distribution systems, in addition to standard AC switching duties.
  • Dedicated AC Switch Design: Engineered specifically for alternating current switching applications, ensuring reliable make-and-break performance over repeated daily use.
  • Toggle-Style Operation: Uses a familiar toggle actuator for straightforward, intuitive on/off and location-to-location switching that installers and end users recognize immediately.
  • Multiple Finish Options: Available in Black, Ivory, Standard, and White to coordinate with wallplates and interior finishes across a job site.
  • Bryant's Quality Construction: Backed by Bryant's long-standing reputation for durable, code-compliant electrical devices built to withstand the rigors of commercial and residential job sites.

Technical Specifications

  • Amperage Rating: 20A

Typical Applications

  • Commercial and Industrial Lighting Control Circuits
  • Residential Multi-Location Switching Projects
  • Hallways, Stairwells, and Multi-Entry Rooms
  • General-Purpose 277V AC Circuit Switching
  • New Construction Electrical Rough-In and Trim-Out
  • Renovation and Retrofit Wiring Upgrades

Why Bryant?

Bryant is a trusted name in electrical wiring devices, relied on by electrical contractors for switches built to perform reliably under everyday commercial and residential demands. The 4903 Series 3-Way AC Switch reflects that standard, pairing a 20A, 277V AC rating with a straightforward toggle-style 3-way configuration across Black, Ivory, Standard, and White finishes for consistent, dependable switching performance. Choose Bryant electrical devices for job-site hardware that professionals can depend on, installation after installation.

Product Specs

Product Type:
3-Way Toggle Switch
Configuration:
3-Way
Amperage Rating:
20A
Voltage Rating:
277V
list_batch:
TOPAZ-20260727
Series:
4903
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Toggle Switches

Bryant CS320BLA – Frequently Asked Questions

1) Can a Bryant 4903 3-way switch be used on a 277V commercial lighting circuit?
Yes. The Bryant 4903 Series toggle switch is rated 20A at 277V AC, which is the voltage you get on lighting branch circuits fed from a 480/277V three-phase system. It also handles ordinary 120V AC switching, so one device covers both the commercial lighting legs and standard residential loads on the same job.
2) Do I need two 4903 switches to control a light from two doorways?
Yes, two. A 3-way switch is half of a pair, so controlling one lighting load from two locations, say each end of a hallway or top and bottom of a stair, takes two 4903 devices plus the three-wire traveler run between them. One 3-way switch on its own cannot do two-location control.
3) Is the Bryant 4903 a single-pole switch or a 3-way?
It is a 3-way toggle switch, not single pole. That means it has travelers and no fixed on/off marking on the handle, because the state depends on the position of the partner switch. If you are replacing a plain single-location switch, a 3-way is the wrong part for that box.
4) What colors does the Bryant 4903 3-way switch come in?
Four choices: White (9903W), Ivory (9803I), Black (CS320BLA), and Standard (4903L). Order by the color that matches the wallplates already on the job, and note the catalog number changes with the color, so specify it on the purchase order rather than just the series.
5) Is a 20A switch OK on a 15A lighting circuit?
Yes. The 4903 is rated 20A, and a switch rated above the branch circuit is fine, the rating is a ceiling on what the contacts will carry. It is the other way round that is a problem: do not put a 15A device on a 20A circuit. Standardizing a building on the 20A 4903 means one part number covers both 15A and 20A lighting branches.
6) Will a 277V switch work for a plain residential 120V hall light?
Yes. The 277V AC rating on the 4903 is a maximum, so the same switch works on 120V residential circuits. Facilities that run both commercial 277V lighting and 120V general lighting often stock only this device to cut down on SKUs.
How fast can I get the Bryant CS320BLA 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 Bryant CS320BLA come with a warranty?
Absolutely. The Bryant CS320BLA 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 Bryant CS320BLA?
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 Bryant CS320BLA from ZenSupply?
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