Intermatic K4121C 15A, 120V Photocell

The K4100 and K4400 Series Photo Controls are thermal-type, dusk-to-dawn lighting controls designed for use with outdoor lighting fixtures. These models provide reliable, energy-efficient ON/OFF control, utilizing a cadmium sulfide photocell for automatic operation. The thermal-type design includes a delay action to prevent lights from turning off due to interference from car headlights or other transient light sources. The controls feature a sonic-welded polycarbonate case and lens, ensuring moisture resistance and durability. Designed for long-lasting performance in varying temperature conditions, these models are California Title 24 compliant and are suitable for installation on standard outdoor light fixtures and electrical boxes.

Product Specification :

• 120V, 50/60Hz operation
• 1800W power rating with "T" stem mounting
• Thermal-type photocontrol with dusk-to-dawn lighting control
• Delay action prevents switching OFF due to car headlights or other transient light
• Features a cadmium sulfide photocell for automatic operation
• Sonic-welded polycarbonate case and lens to prevent moisture ingress
• Dual temperature compensating bimetal and composite resistor for reliable, long-life operation
• Compliant with California Title 24 energy efficiency standards
• Installs on standard outdoor light fixtures or electrical boxes with 1/2"-14 NPSM thread or 7/8" knock-out holes
• Ideal for streetlights, security lights, and landscape lighting
• Alternative part numbers: 078275002012, K4121C, IMTK4121C, K4221C