Cut Sheet

Interval
Astronomic
THE PHOTO CONTROL YOU NEED
Intermatic Photo Controls
provide “dusk-to-dawn” control
of street, parking lot, billboard
and security lighting. Our line
includes Thermal type, Relay
type and Solid State (electronic)
Photo Controls. Mounting types
include fixed position mounting,
stem mounting and twist lock.
With so many different options;
we have the right Photo Control
for your application.
For more information go to
www.intermatic.com
Specifier Resources
Competitive comparisons
Downloadable documentation
and wiring diagrams
K4021
K4321C
LC4521CK4521 K1221
FEATURES & BENEFITS
5 Year Warranty
NEMA twist lock
plug connection
K4000 style thermal switch for
reliable long life performance
Accessories available
UL/CSA approved
FEATURES & BENEFITS
5 year Warranty
Instant ON/OFF switching
Two mounting types
2400V open type spark gap
arrestor and standard
3-prong connector
(K1200 series only)
Equipped with an adjustable
stem for mounting at up to
80° angle (K1100 series only)
UL/CSA approved
FEATURES & BENEFITS
3 Year Warranty
NEMA twist lock
plug connection
Integral housing and lens,
with UV protection
Solid brass terminals
UL/CSA approved
Stem Mounting Stem and Swivel Mounting
FEATURES & BENEFITS
5 Year Warranty
Fits into a standard outlet box,
post lamp or wall packs
Single and multivolt models
available
Equipped with a 3/8”
threaded side mounting
locking nut and gasket
K4321C includes weatherproof
wall plate with gasket
UL/CSA approved
FEATURES & BENEFITS
5 Year Warranty
Single and multivolt models
available
Equipped with light level slide
adjustment and 1/2”
threaded stem
Washer gasket and locking
nut included
UL/CSA approved
K4121M K4121 K4251 K4221C K1121K4236C K4536SS
FEATURES & BENEFITS
5 Year Warranty
Normally closed contact
Electronically calibrated
Raintight enclosure
NEMA twist lock
plug connection
K4536SST provides adjustable
ON/OFF times between sunset
and sunrise
Instant ON, 10 second delay
OFF switching
UL/CSA approved
Solid State Fixed Position
FEATURES & BENEFITS
5 Year Warranty
Single and multivolt models
available
Models equipped with light
level slide adjustment and
1/2” threaded stem
Washer gasket and locking
nut included
UL/CSA approved
Relay Type
Low Cost Locking-Type
Fixed Position Mounting
Locking Type Mounting
PHOTO CONTROLS