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INTERMATIC Fixed Stem-Mounted Photocontrol - Fixed Stem-Mounted Photocells
INTERMATICFixed Stem-Mounted Photocells

INTERMATIC Fixed Stem-Mounted Photocontrol

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
Fixed Stem-Mounted Photocontrol
Part Number
K4121C
Category
Fixed Stem-Mounted Photocells
Available to Order
Also known as:K4121CINTERMATIC
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

INTERMATIC
Manufacturer Part Number
K4121C
Type
SPST
AC
120V
Stem Dia
1/2 in

Technical Documents

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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.

Frequently Asked Questions

What is the INTERMATIC K4121C photocontrol used for?

The INTERMATIC K4121C is a fixed stem-mounted photocontrol that automatically switches lighting on and off based on ambient light levels. It is commonly used in outdoor area lighting, parking lots, and security lighting to save energy and provide dusk-to-dawn operation.

What are the specifications of the INTERMATIC K4121C?

The INTERMATIC K4121C operates at 120V AC with a SPST switching configuration. It features a 1/2-inch stem diameter for thread stem mounting and includes a lock nut for secure installation. The manufacturer part number is K4121C.

Where to buy the INTERMATIC K4121C worldwide?

3G Electric supplies the INTERMATIC K4121C photocontrol to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fixed stem-mounted photocontrol.

How to install the INTERMATIC K4121C photocontrol?

Install the INTERMATIC K4121C by threading the 1/2-inch stem into a standard knockout or fixture opening. Secure it with the included lock nut. Wire the SPST contacts to your 120V AC lighting circuit. Ensure the photocell faces north or away from artificial light for proper operation.

Used in

Common applications for INTERMATIC
Commercial buildings — Intermatic FM1D20A-AV-8 digital timer for scheduling lighting and HVAC based on occupancy or time of day.
Industrial automation — Intermatic FM1D20A-LV-8 DIN rail timer for controlling industrial loads in 24V AC control circuits.
Panel integration — Intermatic FM1STUZH-240U panel cover-mounted electromechanical timer for through-door access in control panels.
Energy management — Intermatic MIL72ESWUZH-120 7-day electromechanical timer for automated lighting control in facilities.
Low-voltage control — Intermatic FM1QTUZ-24U 12/24V AC timer for switching low-voltage loads in HVAC and lighting systems.
Process control — Intermatic FM1STUZ-120U 120V AC timer for time-based operation of pumps and industrial equipment.
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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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