Intermatic Stem Mount Thermal Photocontrol, 120V, Model K4121C
Description
These photocontrols install on standard outdoor light fixtures and electrical boxes with 1⁄2"-14 NPSM thread or 7⁄8" knock-out holes for dusk-to-dawn ON/OFF control of outdoor lighting.
Features
- Mechanical bimetal switch with Cadmium Sulfide photocell
- Delay feature prevents unwanted OFF switching
- Gray plastic housing
- 1⁄2"-14 NPSM threaded stem
- Washer gasket and locking nut included
- #18 AWG, 9" wire leads
Technical Information
Sensor Time Delay: 30 sec to 90 sec
Photocell Type: Cadmium Sulfide
Photo Control Switch Type: Mechanical Bimetal
Fail Mode: ON
Activation On: 1 to 5 fc
Activation Off: 3 to 15 fc
Photocontrol Type: Thermal
Application Compatibilities: HID; Fluorescent; Incandescent
Photocontrol Style: Stem Mount
Photocontrol Sensor Location: Side
Product Height (in): 3
Product Height (mm): 76.2
Product Width (in): 1 9/16
Product Width (mm): 39.7
Product Depth (in): 1 9/16
Product Depth (mm): 39.7
Wire Lead Length (in): 9
Wire Lead Length (mm): 228.6
Wire Size Max: #18 AWG
Cover Color: Gray
Housing Material: Polycarbonate
Load Ratings
Magnetic Ballast Range(s): 8.3 A, 1000 VA
Tungsten Range(s): 15 A, 1800 W
Wiring Option: Wire leads
Input Voltage Range(s): 120 VAC, 50/60 Hz
Expected Lifetime (Years): 5
Expected Lifetime (Operations): 3650
Temperature (operation): -40°C..70°C
Usage Environments: Outdoor
Country of Origin (Intermatic): MEXICO
Warranty Period: 2-Year limited
Document
Original: $19.70
-65%$19.70
$6.89






Description
Description
These photocontrols install on standard outdoor light fixtures and electrical boxes with 1⁄2"-14 NPSM thread or 7⁄8" knock-out holes for dusk-to-dawn ON/OFF control of outdoor lighting.
Features
- Mechanical bimetal switch with Cadmium Sulfide photocell
- Delay feature prevents unwanted OFF switching
- Gray plastic housing
- 1⁄2"-14 NPSM threaded stem
- Washer gasket and locking nut included
- #18 AWG, 9" wire leads
Technical Information
Sensor Time Delay: 30 sec to 90 sec
Photocell Type: Cadmium Sulfide
Photo Control Switch Type: Mechanical Bimetal
Fail Mode: ON
Activation On: 1 to 5 fc
Activation Off: 3 to 15 fc
Photocontrol Type: Thermal
Application Compatibilities: HID; Fluorescent; Incandescent
Photocontrol Style: Stem Mount
Photocontrol Sensor Location: Side
Product Height (in): 3
Product Height (mm): 76.2
Product Width (in): 1 9/16
Product Width (mm): 39.7
Product Depth (in): 1 9/16
Product Depth (mm): 39.7
Wire Lead Length (in): 9
Wire Lead Length (mm): 228.6
Wire Size Max: #18 AWG
Cover Color: Gray
Housing Material: Polycarbonate
Load Ratings
Magnetic Ballast Range(s): 8.3 A, 1000 VA
Tungsten Range(s): 15 A, 1800 W
Wiring Option: Wire leads
Input Voltage Range(s): 120 VAC, 50/60 Hz
Expected Lifetime (Years): 5
Expected Lifetime (Operations): 3650
Temperature (operation): -40°C..70°C
Usage Environments: Outdoor
Country of Origin (Intermatic): MEXICO
Warranty Period: 2-Year limited














