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INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120V AC - Fixed Stem-Mounted Photocells
INTERMATICFixed Stem-Mounted Photocells

INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120V AC

The INTERMATIC K4121C is a fixed stem-mounted photocontrol with a 1/2-inch stem diameter, designed for 120V AC operation with a SPST switching configuration. This INTERMATIC-branded unit includes a lock nut for…

SKU 3G-OTH-155684

Brand
INTERMATIC
Item
Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120V AC
Category
Fixed Stem-Mounted Photocells
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Technical Specifications

INTERMATIC
Manufacturer Part Number
K4121C
Type
SPST
AC
120V
Stem Dia
1/2 in
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INTERMATIC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The INTERMATIC K4121C is a fixed stem-mounted photocontrol with a 1/2-inch stem diameter, designed for 120V AC operation with a SPST switching configuration. This INTERMATIC-branded unit includes a lock nut for secure mounting. The product is a thread stem photocell mounting type, suitable for automatic lighting control based on ambient light levels.

Used in

Common applications for INTERMATIC
Outdoor lighting control — INTERMATIC ET2145CR digital timer for parking lot lighting schedules
HVAC scheduling — INTERMATIC T7801B electromechanical timer for 7-day ventilation system cycling
Dusk-to-dawn lighting — INTERMATIC K4141C photocontrol for automatic street or sign lighting
Short-cycle pump control — INTERMATIC FD5MW spring-wound timer for sump pump test cycles
Plug-in appliance timing — INTERMATIC DT200LT digital plug-in timer for outdoor holiday lighting
Indoor load shedding — INTERMATIC ET2805C astronomic timer for office lighting based on daylight

INTERMATIC Products

3G Electric supplies INTERMATIC fixed stem-mounted photocells. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120V AC, 120V AC (MPN K4421M). Key specifications — attr211224: INTERMATIC; attr1072315: Washer Gasket.
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INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120V AC, 120V AC (MPN K4421M). Key specifications — attr211224: INTERMATIC; attr1072315: Washer Gasket.
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INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 208-277V AC (MPN K4423M). Key specifications — attr211224: INTERMATIC; attr1072315: Lock Nut.
INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120-277V AC (MPN EK4136S). Key specifications — attr211224: INTERMATIC; attr1072315: Mounting Hardware.
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INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 120-277V AC (MPN EK4136S). Key specifications — attr211224: INTERMATIC; attr1072315: Mounting Hardware.
INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 208-277V AC (MPN K4123C). Key specifications — attr211224: INTERMATIC; attr1072315: Lock Nut.
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INTERMATIC Photocontrol: Thread Stem Photocell Mounting, 1/2 in Stem Dia, SPST, 208-277V AC (MPN K4123C). Key specifications — attr211224: INTERMATIC; attr1072315: Lock Nut.
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