Cooper Wiring Devices 1221 Con...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$8.75
Eaton Construction Grade Single-Pole Toggle Switch 20A 120/277V

Cooper Wiring Devices 1221 Construction Grade Single-Pole Toggle Switch, 20A 120/277V

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Model: 1221BK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$8.75
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Cooper Wiring Devices 1221 Construction Grade Single-Pole Toggle Switch, 20A 120/277V

The Cooper Wiring Devices 1221 Construction Grade Single-Pole Toggle Switch delivers reliable 20A switching performance at 120/277V for demanding industrial and commercial environments. Built with durable polycarbonate housing and brass terminal enclosures, this flush-mount toggle switch accepts #14-10 AWG conductors via screw connectors and offers flexible back and side wiring options to accommodate a wide range of electrical box configurations. Designed as a construction grade device, it is engineered to withstand frequent operation and harsh operating conditions found in manufacturing facilities, warehouses, and other heavy-duty commercial settings, while maintaining UL Listed safety and code compliance.

Key Features

  • Amperage Rating: 20A rating handles high-current loads up to 20 amperes for demanding industrial applications and heavy-duty equipment control.
  • Voltage Rating: 120/277V dual-voltage compatibility supports both standard commercial and industrial electrical systems for versatile installation.
  • Wire Range: Accepts #14-10 AWG conductors via screw-type connectors for secure, code-compliant terminations.
  • Durable Construction: Polycarbonate housing provides impact resistance and stands up to harsh operating conditions in industrial settings.
  • Brass Terminal Enclosures: Corrosion-resistant brass terminal enclosures ensure reliable, long-term electrical connections.
  • Flexible Wiring Method: Back and side wiring accommodates a variety of installation methods and electrical box configurations.
  • Single-Pole Toggle Design: Simple, dependable single-pole switching for straightforward on/off circuit control.
  • Flush Mounting: Flush-mount configuration delivers a clean, professional finish for commercial and industrial installations.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Certifications: UL

Typical Applications

  • Industrial Manufacturing Facilities
  • Commercial Construction Sites
  • Heavy-Duty Equipment Control
  • Warehouse and Distribution Centers
  • Processing Plants and Factories
  • Maintenance and Service Areas
  • High-Traffic Commercial Spaces

Why Cooper Wiring Devices?

Cooper Wiring Devices construction grade switches deliver proven reliability with UL Listed certification and rugged polycarbonate construction built specifically for industrial environments. Brass terminal enclosures resist corrosion for long-term connection integrity, while flexible back-and-side wiring methods give installers professional-grade versatility. For demanding 20A, 120/277V electrical applications where equipment must perform reliably day after day, the Cooper Wiring Devices 1221 toggle switch is engineered to meet the standards professionals expect from code-compliant, industrial-grade electrical components.

Manufacturer Resources

Product Specs

Allowable Wire Size:
#14-10 AWG
Amperage Rating:
20 A
Application:
Industrial
Certifications:
UL
Connector Type:
Screw
Mounting Method:
Flush
Number Of Poles:
Single-pole
Product Details:
Toggle switch
Product Height:
3.28 in
Product Length Depth:
1.31 in
Product Material:
Polycarbonate
Product Weight:
.16 lb
Product Width:
.88 in
Switch Classification:
Single-pole
Terminal Enclosure Material:
Brass
Voltage Rating:
120/277 V
Wiring Method:
Back and side
Product Type:
Switches
Product Group:
Wiring Devices
Department:
Electrical
Product Subgroup:
Toggle Switches

Cooper Wiring Devices 1221BK – Frequently Asked Questions

1) Will the Cooper 1221 toggle switch work on a 277V lighting circuit?
Yes. The Cooper Wiring Devices 1221 single-pole toggle switch is rated 120/277 V, so it handles 277V commercial lighting branch circuits as well as standard 120V, at up to 20 A. That dual rating is why it shows up on warehouse and industrial lighting jobs where the fixtures run at 277 and the same part number can be carried for both systems.
2) Is a single-pole switch the right one, or do I need a three-way?
Single-pole is what the 1221 is, meaning one switch controls the load from one location. If the same lights need to be switched from two doorways you need a three-way instead, and from three or more locations a three-way pair plus a four-way in between. Ordering the 1221 for a two-location layout leaves you a device short.
3) Does the Cooper 1221 switch come with a wall plate?
No. The 1221 is the device only, flush mounted to the box with its strap, so you order the cover plate separately. It is a standard toggle opening, so any single-gang toggle plate fits, and on multi-gang boxes you match the plate to the mix of devices in the gang. The device body measures 3.28 x .88 x 1.31 inches, which is a standard strap-mounted footprint for a single-gang box.
4) What colors does the Cooper 1221 toggle switch come in?
Five: white (1221W), ivory (1221V), almond (1221A), black (1221BK) and red (1221RD). For a property manager matching existing devices across a building, white and ivory are the usual standards, and red is commonly pulled for emergency or generator-backed circuits so it reads at a glance. All five are the same 20A 120/277V device, so the color choice does not change the electrical spec.
5) Will the Cooper 1221 hold up in a warehouse or shop where the lights get switched all day?
That is what the construction grade build targets. The housing is polycarbonate for impact resistance and the terminal enclosures are brass, which resists corrosion and keeps the screw connection tight over years of service in a damp or dusty plant. For MRO buyers standardizing across a facility, it is the same device family in five colors so one stocked part covers most of the switching.
6) Can the Cooper 1221 switch a motor or a piece of equipment, not just lights?
It is a general use snap switch rated 20 A at 120/277 V, single pole, and the description calls out heavy-duty equipment control as a typical application. What it is not is a disconnecting means or a motor starter, and it carries no horsepower rating in the spec data, so do not use it where the equipment requires an HP-rated switch or a lockable disconnect at the machine.
How fast can I get the Cooper Wiring Devices 1221BK 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 Cooper Wiring Devices 1221BK come with a warranty?
Absolutely. The Cooper Wiring Devices 1221BK 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 Cooper Wiring Devices 1221BK?
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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