K4500 Series

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.

  • Model Overview
  • Specifications
  • Accessories
  • Resources
  • 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
  • Complies with ANSI C136.10 standard
  • Equipped wirh standard 3-prong NEMA locking-type plug connections
Product Ratings
CA Title 20 Listed
Watts Tungsten: 3100
VA Ballast: 1700
Amps Tungsten: 15
Amps Ballast: 8.3
Volts AC: 208
Accessory for locking-type photocontrol. Pole bracket adapter, receptacle only.
Pole Bracket Adapter. Receptacle only with 30 inch leads.
Pole Bracket Adapter.
K4500 Shorting Cap

Photocontrol Shorting Cap. Replaces locking-type photocontrol to complete circuit.

New Product Highlights


The Intermatic® line of occupancy sensors are engineered and tested for long-lasting performance. In-Wall and Ceiling Mount sensors in both PIR (infrared) and dual (PIR/ultrasonic) technologies can monitor virtually any area within a building, providing solutions for any retrofit or new construction project. They utilize zero-crossing technology to suppress inrush current impact, supplying reliable ON/OFF sensing no matter the lighting technology.


The Intermatic® ICUBE™ Adaptive Defrost Module cuts defrost cycles--and utility bills--for the food service industry. Designed by Grässlin by Intermatic for commercial walk-in coolers and freezers, the smart-sensing technology behind the ICUBE™ continuously monitors evaporator coil temperatures and only allows defrosting when necessary at the next programmed timer interval.

Surge Protective Device Group Shot

The Intermatic® Surge Protective Device with Consumable Modules covers 100% of a home’s big investment equipment, from appliances and computers, to HVAC equipment and TVs. The Surge Protective Device uses replaceable Consumable Modules that allows homeowners to easily and safely replace a module when the built-in LED light indicates it has been compromised.