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Spring Grove, Illinois 60081
www.intermatic.com

1

Mini Button Photocontrol 
Model K4621

SAFETY SECTION

Warning

Risk of Fire or Electric Shock

•  Installation and/or wiring must be in accordance with all national and local code 

requirements.

•  Disconnect power at the circuit breakers or disconnect switch(es) before 

beginning installation or service.

•  Do NOT use the OFF state of the photocontrol for equipment servicing.

DESCRIPTION

This mini button photocontrol is for use with passage lighting, 
doorway lighting, lamp post lighting, and enclosure mounts 
to allow automatic powering of the load by light level.

INSTALLATION INSTRUCTIONS

Note: 

Use an approved FS box or lighting fixture with 
a 7/16” or 11mm diameter hole for mounting the 
photocontrol.

Gasket
Joint
Junta

Nut
Écrou
Tuerca

FIG. 1. 

Photocontrol mounting

Mini Button Photocontrol 
Model K4621

Installation manual

158--01975

1.  Disconnect the power before beginning installation.
2.  Mount the photocontrol using the included gasket and 

nut. DO NOT MOUNT WITH THE WIRES FACING UP. 
Refer to FIG. 1.

3.  Turn the photocontrol lens away from artificial light 

sources. Artificial light may cause the controlled load to 
turn off at night.

4.  Wire the photocontrol. Refer to FIG. 2.
5.  Reconnect the power.
6.  Test the unit. Completely cover the lens of the 

photocontrol using a dark cloth. The load controlled by 
the unit should activate in less than one minute.

Red 

Rouge 

Rojo

Black 

Noir 

Negro

Black 

Noir 

Negro

White 

Blanc 

Blanco

White 

Blanc 

Blanco

White 

Blanc 

Blanco

FIG. 2. 

Wiring Diagram

LIMITED TWO-YEAR WARRANTY

If within the warranty period specified, this product fails due to a defect in material or 
workmanship, Intermatic Incorporated will repair or replace it, at its sole option, free of 
charge. This warranty is extended to the original household purchaser only and is not 
transferable. This warranty does not apply to: (a) damage to units caused by accident, 
dropping or abuse in handling, acts of God or any negligent use; (b) units which have 
been subject to unauthorized repair, opened, taken apart or otherwise modified; (c) 
units not used in accordance with instructions; (d) damages exceeding the cost of 
the product; (e) sealed lamps and/or lamp bulbs, LED’s and batteries; (f) the finish on 
any portion of the product, such as surface and/or weathering, as this is considered 
normal wear and tear; (g) transit damage, initial installation costs, removal costs, or 
reinstallation costs.
INTERMATIC INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR 
CONSEQUENTIAL DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION 
OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE 
LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY IS IN LIEU 
OF ALL OTHER EXPRESS OR IMPLIED WARRANTIES. ALL IMPLIED WARRANTIES, 
INCLUDING THE WARRANTY OF MERCHANTABILITY AND THE WARRANTY OF 
FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY MODIFIED TO EXIST ONLY 
AS CONTAINED IN THIS LIMITED WARRANTY, AND SHALL BE OF THE SAME 
DURATION AS THE WARRANTY PERIOD STATED ABOVE. SOME STATES DO NOT 
ALLOW LIMITATIONS ON THE DURATION OF AN IMPLIED WARRANTY, SO THE 
ABOVE LIMITATION MAY NOT APPLY TO YOU.
This warranty service is available by either (a) returning the product to the dealer from 
whom the unit was purchased or (b) completing a warranty claim online at www.
intermatic.com. This warranty is made by: Intermatic Incorporated, Customer Service 
7777 Winn Rd., Spring Grove, Illinois 60081-9698.  For warranty service go to:  
http://www.Intermatic.com or call 815-675-7000.

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