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White polycarbonate photo control sensor with mounting stem and lock nut

Intermatic

Intermatic K4123C Photo Control Sensor 208-277V 15A personal protective equipment

SKU CH-3NP5-XQGXP

Photocontrol sensor switches 15 A loads at 208-277 V AC from dusk to dawn in a raintight polycarbonate housing

  • Main materialHAWA
  • Automatic dusk-to-dawn operation saves energy
  • Handles 208–277 V AC circuits up to 15 A
  • Raintight polycarbonate housing withstands -40 °F to 158 °F
  • cCSAus and UL Listed for code-compliant installs
  • Includes lock nut and washer gasket for secure mounting

Intermatic K4123C Photo Control Sensor

The Intermatic K4123C is a photo control sensor designed for automatic dusk-to-dawn lighting operation. It mounts via a stem and includes a lock nut with washer gasket for secure installation. The unit features a raintight polycarbonate enclosure rated for outdoor use. It carries cCSAus, California Title 20 and UL Listed certifications.

For 208-277V AC lighting circuits up to 15A

This sensor suits installations operating between 208 and 277 volts AC with incandescent loads up to 15 amps or ballast loads up to 8.3 amps. It handles maximum wattage of 150 for 4-wire configurations. Installers needing control for different voltage ranges or higher amperage ratings should consider other options.

1.0 to 5.0 foot-candle turn-on threshold

The photocell activates lighting between 1.0 and 5.0 foot-candles and deactivates between 3 and 15 foot-candles. This sensitivity range determines when lights switch on and off relative to ambient light levels. Verify that this operating window matches the specific lighting requirements of the installation site.

How it compares

Measured against everything we stock in Face Masks, Respirators & PPE, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 60% of the 5,612 comparable items (median $24.99).

Specifications

Product
Brand nameIntermatic
Size & build
Main materialHAWA

Questions about this item

How does the 15 A incandescent rating translate when the sensor is controlling actual lighting loads?

The sensor can switch up to 15 A of incandescent lighting or 8.3 A of ballast load on a 208 to 277 V AC circuit.

What does the cCSAus and UL listing mean for the voltage range this device can handle?

The listings confirm the sensor is approved for continuous use on 208 to 277 V AC circuits within the stated temperature limits.

What mounting hardware is required to install the stem on a standard junction box?

The unit includes a lock nut and washer gasket that thread onto the mounting stem for a raintight junction-box connection.

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