Hubbell Incorporated
Hubbell Incorporated CSB220 Wall Switch 20A Brown 2-Pole 120/277V AC
A 20 A double-pole wall switch rated 120/277 V AC with back and side wiring for 14 to 10 AWG conductors
- 20 A rating handles heavy-duty circuits
- Double-pole design controls both hot conductors
- 120/277 V AC rating suits commercial supplies
- Back and side wiring accepts 14–10 AWG conductors
- UL Listed and impact-resistant for safe installation
Hubbell CSB220 20A Double-Pole Switch
The Hubbell CSB220 is a 20-ampere, double-pole wall switch rated for 120/277 volts AC. It is built for commercial and industrial lighting circuits that require both legs of a split-phase supply to be opened simultaneously. The brown, shatter-resistant body mounts in a standard wall box with 3.3-inch centre-to-centre holes.
20A 120/277V AC Double-Pole Rating
The decisive specification is the 20-ampere, 120/277-volt AC double-pole rating, which determines whether the switch can handle the load and voltage of the intended circuit. Single-pole switches or lower-voltage devices will not provide the required isolation for this application.
Back and Side Wiring 14-10 AWG
Installation uses back-wire or side-wire terminals that accept solid or stranded conductors from 14 AWG to 10 AWG. The most common issue is over-tightening the terminal screws on smaller-gauge wire, which can damage the conductor and create a high-resistance connection.
Highlights
- 20 A rating handles heavy-duty circuits
- Double-pole design controls both hot conductors
- 120/277 V AC rating suits commercial supplies
- Back and side wiring accepts 14–10 AWG conductors
- UL Listed and impact-resistant for safe installation
Specifications
| Brand | HUBBELL |
|---|
Questions about this item
What does the 20 A rating mean once the switch is installed?
It means the switch can carry up to 20 amps continuously on a 120/277 V AC circuit without overheating.
What wiring standard does the back/side wiring method follow and what wire sizes does it accept?
The back/side wiring terminals accept solid or stranded copper from 14 AWG up to 10 AWG per UL listing.
What mounting dimensions do I need for the wall box?
The mounting holes are spaced 3.3 in centre-to-centre vertically, fitting a standard US switch box.
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