Hubbell Incorporated
Hubbell Incorporated CSB320 20A 120/277V 3-Way Switch
A 20 A commercial toggle switch for 120/277 V three-way circuits, rated 1 hp and accepting 14–10 AWG wire on screw terminals
- Rated for 20 A at 120/277 V AC
- 1 HP motor load capacity for commercial use
- 3-way toggle enables multi-location control
- Accepts 14 to 10 AWG wire via screw terminals
- Shatter, crack, corrosion and impact resistant nylon housing
Commercial Toggle Switch
The Hubbell CSB320 is a 20 A, 120/277 V AC three-way toggle switch built for commercial wiring. It accepts 14 to 10 AWG conductors on screw terminals and carries a 1 hp motor rating. UL listed construction suits branch-circuit control in offices, schools and similar facilities.
Thermals Noise Power
As a passive mechanical switch the device generates no audible noise and draws no power of its own. Shatter, crack, corrosion and impact resistant nylon housing maintains integrity across normal indoor temperature ranges. Contacts remain stable under continuous 20 A loading without thermal derating.
Wiring Flexibility
Back and side wiring entries give installers routing options in crowded boxes. Screw-terminal clamps secure solid or stranded wire without special tools. The brown toggle provides quick visual identification in multi-switch plates. No accessories or software are bundled with the unit.
Highlights
- Rated for 20 A at 120/277 V AC
- 1 HP motor load capacity for commercial use
- 3-way toggle enables multi-location control
- Accepts 14 to 10 AWG wire via screw terminals
- Shatter, crack, corrosion and impact resistant nylon housing
Specifications
| Brand | HUBBELL WIRING DEVICE-KELLEMS |
|---|
Questions about this item
How do I wire the CSB320 using the back and side terminals, and which step do installers often miss?
Strip conductors to the gauge range 14 to 10 AWG, insert fully into the back-wire ports or wrap clockwise around the side screws, then tighten each screw to secure the connection; the step often missed is confirming no bare copper remains exposed after tightening.
What part of this switch will need replacement first in a commercial setting?
The toggle mechanism and screw terminals are rated for maintained use; under normal commercial duty the nylon housing resists impact and corrosion, so the switch itself typically outlasts the circuit it controls.
At what load does the 1 hp motor rating become the limiting factor during sustained operation?
The 1 hp rating at 120/277 V AC defines the maximum motor load; continuous operation at or above this horsepower will reach the thermal limit before the 20 A current rating does.
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