The K4500 series photocontrols feature locking-type mounting and thermal type controls that are equipped with standard 3-prong locking-type plug connections. Thermal type photocontrols provide dusk-to-dawn lighting control and provide delay action, which eliminates loads switching OFF due to car headlights and lightning. The thermal type controls feature a cadmium sulfide photocell and 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.

Intermatic® Thermal Photocontrol, Locking Mounting, Series: K4500, 277 VAC, 15 A, 50 to 60 Hz Frequency, 4155 W Tungsten, 2300 VA Ballast, Automatic Switch/Cadmium Sulfide Sensor, 1 to 5 FC ON, 3 to 15 FC Off Sensitivity, Environmental Conditions: -40 to 158 deg F Operating Temperature, Twist-Lock Mounting, Polycarbonate, Gray, 3 in Dia x 3-1/4 in H Dimensions

• 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
• Easy-to install - just plug and twist
• Equipped with standard 3-prong NEMA locking-type plug connections

• Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_d537bc34a50c07b4984d44c705ee90c1c2d69794e9c35984d3973bd7eaf276df.pdf