K4421M INTERMATIC Metal Stem Mount Thermal Photocontrol

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Product Details

Thermal dusk-to-dawn photocontrol from Intermatic with a Cadmium Sulfide photocell and mechanical bimetal switch. Mounts directly onto standard outdoor light fixtures and electrical boxes with a 1/2"-14 NPSM threaded stem or 7/8" knock-out. A built-in sensor delay (30–90 sec) prevents unwanted OFF switching from temporary light interruptions. Compatible with HID, fluorescent, and incandescent lamp types. Washer gasket and locking nut included.

Available in stock — ships within 24 hours after payment.

Product overview

Model number K4421M
UPC 078275105997
Brand Intermatic
Product type Thermal photocontrol — dusk-to-dawn
Mounting style Stem mount
Input voltage 120 V AC, 50/60 Hz
Switch type SPST — mechanical bimetal
Photocell type Cadmium Sulfide
Sensor time delay 30 to 90 seconds
Activation ON 1 to 5 fc
Activation OFF 3 to 15 fc
Fail mode ON
Compatible lamp types HID, Fluorescent, Incandescent
Incandescent / tungsten load 15 A / 1,800 W
Magnetic ballast load 8.3 A / 1,000 VA
Stem thread 1/2"-14 NPSM
Wire leads #18 AWG, 9" (228.6 mm)
Housing material Die-cast zinc — grey
Dimensions (H×W×D) 76.2 × 39.7 × 39.7 mm (3" × 1.563" × 1.563")
Operating temperature -40 °C to +70 °C
Expected lifetime 5 years / 3,650 operations
Certifications cULus, cCSAus, Title 20, Green Energy
Condition New in original packaging (OVP)

Applications

  • Dusk-to-dawn ON/OFF control of outdoor street, area, and security lighting
  • Standard outdoor light fixtures and electrical boxes with 1/2"-14 NPSM thread or 7/8" knock-out
  • HID, fluorescent, and incandescent outdoor luminaires
  • Commercial and residential outdoor lighting automation

Shipping

  • Ships within 24 hours after payment
  • Secure packaging for safe delivery
  • Free delivery within Germany

Warranty & compliance

  • 12-month warranty included
  • Product is fully compliant with EU industry standards
  • VAT invoice included with every order

(GPSR (EU) 2023/988): Contact us at info@liquisto.com for Manufacturer/EU Responsible Party product safety contact details.