Brand: Intermatic · SKU: K4021MB · UPC: 078275159594 · Category: Controls & timers · Type: Photocontrols
The Intermatic K4021MB is a button thermal photocontrol rated for 120V. Mini-Button Thermal Photocontrol, 120V. It is used by electricians and lighting contractors to automatically switch outdoor lighting fixtures on at dusk and off at dawn based on ambient light levels, removing the need for a manual switch or a separate timer. A thermal photocontrol like this one uses a heat-sensitive bimetal element paired with a photocell to open and close the switching contacts, which is a common, field-proven design for area lighting, parking lot fixtures, building-mounted luminaires, and other dusk-to-dawn applications. It is built for the button style of installation described in the product data, and it falls under Intermatic's Photocontrols line within the controls timers category.
It is rated for 120V.
It is a thermal photocontrol that uses a heat-sensitive element and a photocell to switch based on ambient light, turning fixtures on at dusk and off at dawn.
Specification sheet (PDF)
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