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Black cylindrical locking photocontrol receptacle with 12 inch leads, 2.55 inch diameter, 1.52 inch height

Intermatic

Intermatic K121 Locking Photocontrol Receptacle 15 A dimmer switch

SKU CH-2BMH-MS3M9

A locking photocontrol receptacle rated 15 A at 120–480 V AC with 12 in leads for Intermatic photo controls

  • TypeIndustrial Electrical Controls & Automation
  • Color MappingBlack
  • Locking receptacle secures photocontrols for reliable dusk-to-dawn operation
  • 15 A rating handles standard lighting circuits up to 480 V AC
  • 12 in leads simplify wiring in junction boxes and enclosures
  • 55 in outside diameter fits common mounting configurations
  • Industrial-grade construction by Intermatic withstands outdoor environments

Product Identity

The Intermatic K121 is a locking-type photocontrol receptacle rated for 15 A. It is designed for electricians and facility managers who need a secure mounting point for compatible photo controls in industrial or commercial lighting circuits.

Capacity and Headroom

The unit operates across a 120 to 480V AC range and carries a 15 A current rating. It comfortably handles standard lighting loads within that voltage window, but runs out of headroom for circuits exceeding 15 A or for control devices that demand a higher amperage rating.

Deciding Specification

The locking receptacle mechanism is the single specification that determines fit. Only photo controls with a matching locking base will engage securely, so buyers using twist-lock or other mounting styles cannot use this part.

Highlights

  • Locking receptacle secures photocontrols for reliable dusk-to-dawn operation
  • 15 A rating handles standard lighting circuits up to 480 V AC
  • 12 in leads simplify wiring in junction boxes and enclosures
  • 55 in outside diameter fits common mounting configurations
  • Industrial-grade construction by Intermatic withstands outdoor environments

Specifications

TypeIndustrial Electrical Controls & Automation
BrandINTERMATIC
Color MappingBlack

Questions about this item

Will the 15 A receptacle work with my existing 120 V lighting circuit?

Yes, the receptacle is rated for 120 to 480 V AC at 15 A, so it is compatible with standard 120 V circuits.

How can I verify the photocontrol receptacle is operating correctly after installation?

The connected photo control should switch the load on at dusk and off at dawn, confirming the receptacle is passing power as intended.

Does the K121 include the photo control head or only the receptacle and wiring leads?

The package supplies the locking receptacle with 12 in and 9 in leads; the photo control head itself must be purchased separately.

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