Eaton WD1221B Toggle Switch - Residential Grade UL Listed

Part Number: WD1221B
Manufacturer
Eaton
Part number
WD1221B

Quick Summary

Eaton WD1221B toggle switch delivers reliable on/off control for single-pole circuits in commercial electrical installations. When panel space or wiring methods vary, this unit’s back and side wiring with screw terminals offers flexible, fast installation without compromising safety. UL Listed and cULus Listed certifications reinforce regulatory compliance across North American applications, while its residential-grade design supports high-volume use with cost efficiency. For engineers and procurement teams, the WD1221B combines durable materials and predictable performance to reduce maintenance needs and field service time, improving project timelines and reliability in busy electrical rooms.

Product Information

Extended Description

WD1221B Eaton: Toggle Switch, Brown, Screw, Polycarbonate, Flush, Single-pole, Single Pole, Brass, 120/277 Vac, #14 to 10 AWG, Back and side
Product Name
Eaton toggle switch
Catalog Number
WD1221B
UPC
032664735622
Product Length/Depth
1.31 in
Product Height
3.28 in
Product Width
0.88 in
Product Weight
0.001 lb
Certifications
UL Listed cULus Listed
Special features
RESIDENTIAL GRADE SWITCHES
Type
Toggle switch
Amperage Rating
20A
Voltage rating
120/277 V
Number Of Poles
Single-pole
Phase
Single-phase
Application
Commercial
Wiring method
Back and side
Switch type
Single-pole
Mounting method
Flush
Connector type
Screw
Material
Polycarbonate
Allowable wire size
#14-10 AWG
Torque rating
14 lbf-inch
Terminal enclosure material
Brass
Design type
Toggle
Actuator
Toggle
Color
Brown
Feature → Business Impact → Application: 20A at 120/277 V enables standard commercial lighting and control circuits, delivering dependable switching performance and compatibility with common electrical loads. This translates to improved system reliability and fewer nuisance trips in daily operations, ideal for commercial panel boards and service entrances. Application: commercial wiring and light-control circuits benefit from consistent amperage rating and straightforward integration with existing back and side wiring schemes.Feature → Business Impact → Application: Back and side wiring with screw terminals simplifies field wiring and reduces installation time while maintaining secure, vibration-resistant connections. This supports faster panel builds, easier retrofits, and lower labor costs on site. Application: retrofit projects and new installations in office spaces and retail environments where quick, reliable wiring is essential.Feature → Business Impact → Application: Polycarbonate housing with brass terminal enclosure provides robust abrasion resistance and corrosion protection, extending switch life in diverse environments. This lowers maintenance cycles and replacement costs. Application: indoor commercial environments where longevity and durability drive total cost of ownership reductions.Feature → Business Impact → Application: Flush mounting and brown finish deliver a clean, professional aesthetic that aligns with standard electrical accessories while maintaining space efficiency. This reduces rework during panel upgrades and supports code-compliant installation in limited-clearance enclosures. Application: new build-outs and renovations requiring neat, code-compliant switch assemblies.Feature → Business Impact → Application: UL Listed and cULus Listed certifications confirm regulatory compliance, easing procurement and audit processes while ensuring performance under simultaneous electrical demands. This mitigates compliance risk for projects in regulated sectors. Application: facilities with strict safety and documentation requirements, including commercial and institutional environments.Feature → Business Impact → Application: Compact single-pole, 1-pole design with 14 lbf-in torque rating and #14-10 AWG wiring supports reliable clutching of conductors without over-torquing or damage. Application: standard residential and light-commercial wiring where consistent torque and secure terminations are critical for long-term operation.

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FAQs

WD1221B supports back and side wiring with screw terminals and accepts #14-10 AWG conductors. Its torque rating of 14 lbf-in helps ensure a secure termination without over-tightening, simplifying installation in tight panels and service boxes.
WD1221B is UL Listed and cULus Listed, confirming compliance with North American electrical safety standards. These certifications reduce approval time, support regulatory compliance, and are especially valuable for commercial and institutional installations needing rigorous verification.
Yes. The flush-mount design combined with a compact 1.31 in depth and 0.88 in width makes it ideal for constrained enclosures, while the 120/277 V rating covers most commercial lighting circuits without requiring special transformers or adapters.
Durable polycarbonate housing with brass terminal enclosure provides corrosion resistance and long service life, lowering replacement and maintenance costs. The simple screw-terminal wiring speeds up service calls, reducing downtime and improving total cost of ownership.
Absolutely. Labeled as residential grade with UL/cULus certification, the WD1221B is well-suited for residential-to-commercial retrofit projects, offering dependable performance, straightforward installation, and compatibility with common wire sizes and mounting methods.