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Photo Detectors - 558 - Blowout Sale! Save up to 64%


Blowout Sale! Up to 64% off on Photo Detectors at In The National Interest. Top brands include Shine Gold Electronices, TORK a brand of NSi Industries, LLC, NSI, Tork, & Intermatic. Hurry! Limited time offers. Offers valid only while supplies last.



5pcs Photoresistor Photoconductive Cell Light Dependent Resistor 20-30K LDR 20mm Ceramic Pacakge
5pcs Photoresistor Photoconductive Cell Light Dependent Resistor 20-30K LDR 20mm Ceramic Pacakge
In Stock
$13.20

mpn: SG20537-1,

5pcs Photoresistor Photoconductive Cell Light Dependent Resistor 20-30K LDR 20mm Ceramic Pacakge CdS photoconductive cells utilize photoconductive effects in semiconductors that decrease their resistance when illuminated by light. These sensors are ...


Lexan Housing with Weatherproof Sealant Photocontrol, 2080-2770VA Ballast, SPST Switch, 3470-4620W Power, 208-277VAC Voltage
Lexan Housing with Weatherproof Sealant Photocontrol, 2080-2770VA Ballast, SPST Switch, 3470-4620W Power, 208-277VAC Voltage
In Stock
$13.22
$8.99
You Save: 32%

mpn: 2000-2, ean: 0786261600189,

This NSi Industries 2000-2 switch and photocontrol accepts 208-277 VAC input and each of its three circuits can activate a 2,770 ballast for lighting control. The integral photocell turns on lighting when the ambient light level drops below a user-se...


Quick Response Turn-Lock Mounting Photocontrol, 1800VA Ballast, 1000W Power, 105-285VAC Voltage, Blue
Quick Response Turn-Lock Mounting Photocontrol, 1800VA Ballast, 1000W Power, 105-285VAC Voltage, Blue
By NSI
In Stock
$16.00
$8.42
You Save: 47%

mpn: 2007A, ean: 0786261620132,

This NSi Industries 2007A photocontrol accepts 105-285 VAC input, has a 1,800 VA ballast capability, and can power a 1,000 watt lamp for applications such as street and highway lighting. The cadmium sulphide photocell turns on lighting when the ambie...


5000M Series Delayed Response Utility Grade Mov Surge Arrestor Photocontrol, 1800VA, 2080-2770VA Ballast, 1/2'' Light Sensor, 2000W Power, 105-130/208-285VAC Voltage, Blue (Note: This item is not designed for use with LED lighting)
5000M Series Delayed Response Utility Grade Mov Surge Arrestor Photocontrol, 1800VA, 2080-2770VA Ballast, 1/2" Light Sensor, 2000W Power, 105-130/208-285VAC Voltage, Blue (Note: This item is not designed for use with LED lighting)
By Tork
In Stock
$12.48
$7.50
You Save: 40%

mpn: 5007M, ean: 0786261610140,

This NSi Industries 5007M photocontrol accepts 105-130/208-285 VAC input, has a 1,800/2,080-2,770 VA ballast capability, and can power a 2,000/3,470-4,620 watt lamp for applications such as street and highway lighting. The 1/2" cadmium sulphide photo...


5737 Series Early Morning ON Photo-Timer, 1800VA Ballast, SPST Switch, 1000W Power, 105-305VAC Voltage
5737 Series Early Morning ON Photo-Timer, 1800VA Ballast, SPST Switch, 1000W Power, 105-305VAC Voltage
In Stock
$110.25
$73.00
You Save: 34%

mpn: 5737TZ, ean: 0786261620101,

This NSi Industries 5737TZ photocontrol accepts 105-305 VAC input, has a 1,800 VA ballast capability, and can power a 1,000 watt lamp for applications such as sign and billboard lighting. The silicon photocell turns on lighting when the ambient light...


Photocontrol Open Cap, 480VAC Voltage, For Turn-Lock Control
Photocontrol Open Cap, 480VAC Voltage, For Turn-Lock Control
In Stock
$184.59

mpn: 5500-OC, ean: 0786261611321,

This NSi Industries 5500-OC photocontrol cap accepts 480 VAC input and replaces turn-lock mount photo sensor controls to provide a constant Off setting. The polypropylene housing is UV stabilized for durability. This cap is Intertek Testing Services ...


Intermatic LC4536C 120VAC to 277VAC Locking Thermal Photocontrol
Intermatic LC4536C 120VAC to 277VAC Locking Thermal Photocontrol
In Stock
$19.99
$7.16
You Save: 64%

mpn: 02955, ean: 0078275029552,

The LC4500 Series Photocontrols feature low cost locking-type mounting, and thermal-type controls for street lighting and other applications requiring a twist and lock type plug connection. Thermal-type photocontrols provide dusk-to-dawn lighting con...


Quick Response Turn-Lock Mounting Photocontrol, 1800VA Ballast, 1000W Power, 105-130VAC Voltage, Grey
Quick Response Turn-Lock Mounting Photocontrol, 1800VA Ballast, 1000W Power, 105-130VAC Voltage, Grey
In Stock
$14.25
$12.56
You Save: 12%

mpn: 2005A, ean: 0786261620125,

This NSi Industries 2005A photocontrol accepts 105-130 VAC input, has a 1,800 VA ballast capability, and can power a 1,000 watt lamp for applications such as street and highway lighting. The cadmium sulphide photocell turns on lighting when the ambie...


Tork Photo Electric Control Model 2000
Tork Photo Electric Control Model 2000
By Tork
In Stock
$20.00
$11.77
You Save: 41%

mpn: 2000, ean: 0786261600172,

'Photocontrol, Mounting Fixed, 1/2 In. Conduit, Voltage 120VAC, Max. Wattage 2000, Max. Incandescent Amps 16.7, Max. Ballast Amps 15, 1 to 5 Foot Candles On, 3 to 15 Foot Candles Off, Color Gray, Temp. Range -40 Degrees to 140 Degrees F, Length 3-1/2...


DGU Series Lighting Control with Photo/Override Input Control Time Switch, Metal Indoor NEMA 1 Enclosure, 120-277 VAC 50/60 Hz Input Supply, SPDT Momentary Output Contact
DGU Series Lighting Control with Photo/Override Input Control Time Switch, Metal Indoor NEMA 1 Enclosure, 120-277 VAC 50/60 Hz Input Supply, SPDT Momentary Output Contact
By NSI
In Stock
$885.12
$758.79
You Save: 14%

mpn: DGUM100A-Y, ean: 0786261822246,

4.2 out of 5 stars with 53 reviews
This NSi Industries DGUM100A-Y digital time switch accepts 120-277 VAC input and its SPDT output contacts provide momentary contact operation (up to two seconds) for mechanically held contactors and low-voltage remote control operations. This timer i...



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