Intermatic K4100 Series, K4400 Series Catalog Page

K4100 & K4400 Series

20

Photocontrols

Project:

Location:

K4100 & K4400 Series

Stem Mounting

The K4100 & K4400 Series Photocontrols feature stem mounting,
thermal-type, controls with single and multi-voltage models.
Thermal-type photocontrols provide dusk-to-dawn lighting control
and a delay action, which eliminates loads switching OFF due to car
headlights, and lightning. The thermal-type controls feature a cadmium
sulde photocell and a sonic-welded polycarbonate case and lens to
seal out moisture. The design utilizes a dual temperature compensating
bimetal and composite resistor for reliable long life operation over
ambient temperature extremes. These models are California Title 24

compliant.

Features

• Cadmium sulde photocell

• Sonic welded polycarbonate housing and lens to seal out moisture

• Delay action eliminates load switching OFF due to car
headlights, and lightning

• 6" leads

• Light level slide adjustment

• Controls come with a washer gasket and locking nut

• “M” Models are heavy duty die cast housings

Ratings

Size: 1 9⁄16" (4.0 cm) square, 3" (7.6 cm) long
Models with “M”- 1 15⁄16" (4.9 cm) square, 3 3⁄4"

(9.5 cm) long

Product Type:

Contact/Phone:

Model #:

K4121C, K4123C, K4127, K4135, K4141C

Color: Gray

Electrical Rating: See table

Activation: 1-5 FC ON; 3-15 FC OFF

(phote eye clear on models with shield)

Power Consumption: Averages under 1 Watt

Operating Temperature: -40°F to 158°F (-40°C to 70°C)

Shipping Weight: .14 lb. (.06 kg)

Models with “M”- .62 lb (.28 kg)

Agency Listing: See table

Model Number

K4121C 1800 1000 15 8.3 120 UL

K4421M 1800 1000 15 8.3 120 CSA, C/UL

K4123C 3100-4150 1700-2300 15 8.3 208-277 CSA, C/UL

K4423M 3100-4150 1700-2300 15 8.3 208-277 UL, CSA

K4127 5205 2880 15 8.3 347 CSA, C/UL

*K4135 7200 4000 15 8.3 480

*K4136M 2000-4625 1800-4150 16.7 15 120 or 277

*K4141C 3000 3000 25 25 120

*Models are not agency certied

Tungsten
(Watts)

Ballast (VA)

TITLE

LISTED

Tungsten
(Amps)

K4136M, K4421M, K4423M

Ballast
(Amps)

VAC Agency Listing

Energy Controls

K4100 & K4400 Series

Load

(Line)

Load

(Line)

Specification

The photocontrol shall provide automatic switching for outdoor lighting loads. The control shall be a thermal design with
built-in delay to ensure that the controlled lighting does not switch off due to ambient light or light striking the photocell.
The photocontrol shall have a rating of _____Watts and ______Amps tungsten and _____Watts and ______Amps ballast
based on agency testing at 50% power factor for ballast loads. The photocontrol shall provide switching for nominal
voltage xtures of _____Volts ±10% to accommodate uctuations in supply voltage. The photocontrol shall be the stem
mounting type, with all necessary mounting hardware and instructions. The photocontrol housing shall be constructed
of_________________(polycarbonate)(die cast metal). The photocontrol components shall consist of a metal lm resistor,
dual temperature compensating bi-metal blades, snap action contact blades, chemically treated/polymer encapsulated
cadmium sulde photocell and silver alloy contacts to ensure reliable operation. The photocontrol shall be 100% factory
tested for function within specied light levels. The photocontrol shall be agency certied (unless otherwise noted) and
tested accordingly. The photocontrol shall function over temperature range of -40°F to 158°F (-40°C to 70°C). The
photocontrol shall be Intermatic model _________________(See Model Numbers Listed).

Diagrams

Line

Neutral

Photocontrol

Black

White
(Neutral)

Photocontrol 120 or 277 VAC

Red (Load)

Line 1

Line 2

Photocontrol

Black

White
(Neutral)

Photocontrol 208/240/480 VAC

Red (Load)

Energy Controls

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