INTERMATIC K4221C 120V Photocell

Spec Sheet

Intermatic K4221C 120V Photocell - Stem Mounting

The K4200 Series Photocontrols feature stem and swivel mounting, with thermal-type controls. Thermal-type photocontrols, which are available in single or multi-voltage models, provide dusk-to-dawn lighting control and a delay action, which eliminates loads switching OFF due to car headlights, and lightning. The thermal-type controls feature a cadmium sulfide photocell and a sonic-welded polycarbonate case and lens to seal out moisture. The design utilizes a dual temperature compensating bimetal and composite resistor for reliable long life operation over ambient temperature extremes.

- Brand Type: Intermatic

- Ordering Part#: Intermatic-K4221C


  • Cadmium sulfide photocell
  • Sonic welded polycarbonate housing and lens to seal out moisture
  • Delay action eliminates load switching OFF due to car headlights, and lightning
  • 6" leads
  • Light level slide adjustment
  • Controls come with a washer gasket and locking nut
  • “M” Models are heavy duty die cast housing