The K4000 series fixed position mounting photo controls are thermal type photo controls that fit into a standard outlet box, post lamp or wall pack. The photo controls provide dusk-to-dawn lighting control along with 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.

Intermatic® Housing Photocontrol, Thermal, Series: K4000, 208 to 277 VAC, 15 A, 50/60 Hz, 3100 to 4150 W Tungsten, 1700 to 2300 VA Ballast, SPST, 30 to 90 s, 18 AWG Wire, 1 to 5 FC ON/3 to 15 FC OFF, Environmental Conditions: -40 to 158 deg F, Flush Mount, Polycarbonate, Gray, 46 mm H x 23.8 mm W x 20.6 mm D

• Mechanical bimetal switch with Cadmium Sulfide photocell
• Compact size fits into standard outlet box, post lamp, wall pack and other lighting fixtures
• Delay feature prevents unwanted OFF switching
• 3/8 in-18 NPSM, 3/4 in long stem with locking nut and washer gasket

• Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_7d906a627dc23a8a268a7a863b5c17109ff05fca205d0bfdb1df24be10cf96b7.pdf