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Brown locking toggle switch, rectangular body, screw terminals visible

Hubbell Incorporated

Hubbell Incorporated HBL1223L 3-Way Locking Switch Brown 20A 120/277V

SKU CH-MC2F-HSHHY

A 20 A, 120/277 V three-way locking toggle switch with screw terminals for 14–10 AWG wire, UL listed and impact resistant

  • Color/FinishBrown
  • Color MappingBlack
  • TypeLight Switch
  • 3-way switching controls lights from two locations
  • 20 A rating handles heavy-duty circuits at 120/277 V AC
  • Locking straight-key toggle prevents accidental operation
  • Back and side wiring accepts 14 to 10 AWG conductors
  • UL listed impact-resistant construction ensures durability

Three-Way Locking Switch

The Hubbell HBL1223L is a single-pole three-way locking switch rated for 20 A at 120/277 V AC. It is intended for electricians and facility managers who need a secure, key-operated toggle in commercial or institutional lighting circuits. The brown thermoplastic body accepts 14 to 10 AWG conductors via back and side screw terminals. UL listing confirms compliance with applicable safety standards.

Sustained Load Behaviour

Under continuous operation the switch maintains its 20 A rating without derating, and the 1 hp horsepower rating supports motor loads such as exhaust fans. Impact-resistant construction and a straight-key locking mechanism resist tampering and mechanical abuse in high-traffic areas. The maintained contact function keeps the circuit in the selected position until manually changed. Screw-terminal connections provide reliable conductivity over long service periods.

Voltage and Current Rating

The 120/277 V AC, 20 A rating is the decisive specification; it determines whether the device matches the branch-circuit voltage and ampacity required by the installation. If the circuit voltage or current demand falls outside this rating, a different switch must be selected.

Highlights

  • 3-way switching controls lights from two locations
  • 20 A rating handles heavy-duty circuits at 120/277 V AC
  • Locking straight-key toggle prevents accidental operation
  • Back and side wiring accepts 14 to 10 AWG conductors
  • UL listed impact-resistant construction ensures durability

Specifications

BrandHubbell Wiring Device-Kellems
Color/FinishBrown
Color MappingBlack
TypeLight Switch

Questions about this item

Does the 20 A, 120/277 V AC switch generate noticeable heat or noise when powering a circuit continuously?

The switch is a passive mechanical device with no active electronics, so it produces no audible noise and negligible heat during normal 20 A operation.

What wiring must already be in place for the HBL1223L to function as a 3-way control point?

You need a 3-wire traveller run between the two switch boxes plus a neutral and line conductor, all sized between 14 AWG and 10 AWG for the screw terminals.

Can this locking 3-way switch replace an older non-locking toggle on the same 20 A branch circuit?

Yes, it fits the same standard wall box, uses identical screw-terminal wiring, and is UL Listed for 120/277 V AC at 20 A, matching the circuit rating.

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