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Gray polycarbonate photocontrol unit with fixed mounting base and lock nut

Intermatic

Intermatic K4023C Photocontrol Fixed 208-277VAC Gray

SKU CH-1G7H-8CW8S

Automatically controls lighting from dusk to dawn on 208 to 277 VAC circuits with a raintight polycarbonate housing

  • Dusk-to-dawn automation with fixed photocontrol setting
  • Handles 208 to 277 VAC for commercial lighting circuits
  • Raintight polycarbonate enclosure rated from -40 to 158 °F
  • UL listed and cCSAus certified for safety compliance
  • Includes lock nut and washer gasket for secure mounting

Fixed Photocontrol for 208–277 V AC Circuits

This Intermatic K4023C is a dusk-to-dawn photocontrol designed for fixed mounting on lighting circuits operating between 208 and 277 volts AC. It handles up to 150 watts and 15 amps for incandescent loads or 8.3 amps for ballast loads. The polycarbonate housing is raintight and rated for temperatures from -40 to 158 degrees Fahrenheit.

Suited for Commercial and Outdoor Lighting Control

Electricians and facility managers automating area lighting on standard 208–277 V supplies will find this unit a direct fit. The factory-set turn-on range of 1.0 to 5.0 foot-candles and turn-off range of 3 to 15 foot-candles covers typical dusk-to-dawn needs. It is not for low-voltage DC systems, supplies outside the stated voltage band, or applications requiring adjustable time delays or multi-level dimming.

Voltage Range Decides Compatibility

The single specification that determines whether this part works is the 208 to 277 V AC operating window. If the circuit voltage falls outside this range the photocontrol will not operate correctly. Verify the supply voltage before ordering.

Highlights

  • Dusk-to-dawn automation with fixed photocontrol setting
  • Handles 208 to 277 VAC for commercial lighting circuits
  • Raintight polycarbonate enclosure rated from -40 to 158 °F
  • UL listed and cCSAus certified for safety compliance
  • Includes lock nut and washer gasket for secure mounting

Specifications

BrandIntermatic

Questions about this item

What is the maximum wattage the K4023C can handle before it becomes the limiting factor under continuous operation?

The photocontrol supports a maximum of 150 watts, so sustained loads above that level will exceed its rating.

How much heat does the K4023C generate when it is powered all day?

The unit is rated for ambient temperatures from -40 to 158 degrees F and its polycarbonate housing dissipates heat passively without a fan.

Which electrical components must already be in place for the K4023C to operate correctly?

A 208 to 277 V AC supply, a compatible lighting load up to 15 A incandescent or 8.3 A ballast, and a mounting location for the fixed bracket with the included lock nut and washer gasket.

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