NSi Industries Stem-Mount Lexa...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$25.85
NSi Industries Stem-Mount Lexan Photocontrol, 208-277V

NSi Industries Stem-Mount Lexan Photocontrol, 208-277V

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Model: 20002

In Stock (leaves warehouse same day if ordered before 3pm ET)

$25.85
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NSi Industries Stem-Mount Lexan Photocontrol, 208-277V

The NSi Industries Stem-Mount Lexan Photocontrol is a 1/2" stem-mounted, conduit-mount photocontrol built with a durable Lexan housing and a Cadmium Sulphide Cell sensor for reliable dusk-to-dawn lighting control. Rated for 208-277 VAC supply voltage, this fixed-position photocontrol switches at 1 to 5fc (turn on) and 3 to 15fc (turn off), supporting loads up to 3470-4620W tungsten, 2080-2770VA ballast, and 1040-1385VA LED. Backed by cULus listing, it is engineered for dependable performance across outdoor lighting applications where consistent, code-compliant switching is essential.

Key Features

  • Stem Mount Design: 1/2" Lexan stem with 6" leads for straightforward conduit-mount installation.
  • Durable Construction: Lexan housing enclosure rated for operating temperatures from -40 to +140 F, supporting long-term outdoor durability.
  • Fixed Position Photocontrol: Cadmium Sulphide Cell sensor turns on at 1 to 5fc and turns off at 3 to 15fc for consistent dusk-to-dawn switching.
  • Electrical Rating: 208-277 VAC supply voltage supporting 3470-4620W tungsten, 2080-2770VA ballast, and 1040-1385VA LED loads.
  • Low Power Consumption: Draws under 1 Watt during operation for efficient standby performance.
  • Frequency Rating: Compatible with 50-60 Hz supply frequency.
  • Timing Range: 2-minute timing range for stable switching response.

Certifications & Compliance

  • cULus Listed

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Flood Lamp and Patio Lamp Lighting Control
  • Decorative Outdoor Lighting
  • Dusk-to-Dawn Lighting Switching
  • Conduit-Mount Outdoor Fixtures
  • Commercial and Residential Exterior Lighting

Why NSi Industries?

NSi Industries builds this stem-mount photocontrol with a rugged Lexan housing and a Cadmium Sulphide Cell sensor designed to withstand demanding outdoor environmental conditions from -40 to +140 F. With cULus listing and a defined 208-277 VAC electrical rating, it delivers dependable, code-compliant dusk-to-dawn switching for flood, patio, and decorative lighting applications where consistent performance matters.

Manufacturer Resources

Spec Sheet

Product Specs

Mounting Method:
Conduit Mount
Environmental Conditions:
-40 to + 140 F
Product Voltage:
208-277 VAC
Standards:
cULus
Timing Range:
2 Minutes
Sensor Type:
Cadmium Sulphide Cell
Sensitivity:
Turn On Is 1 to 5fc - Turn Off is 3 to 15fc
Product Wattage:
Under 1 Watt
Product Type:
Photocontrol
Operating Temperature:
-40 to + 140 F
Frequency Rating:
50-60 Hz
Configuration:
Lexan Housing
Application:
Flood Lamp-Patio Lamp-Decorative Ligting
Product Material:
Lexan
Listing:
cULus
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Lighting Controls & Sensors

NSi 20002 – Frequently Asked Questions

1) How does the 20002 photocontrol mount, and does it come with wiring leads?
It mounts on a 1/2 inch Lexan stem for conduit mounting, and it ships with 6 inch leads for splicing in a box or fixture wiring compartment. You supply the 1/2 inch conduit fitting or fixture knuckle it threads into.
2) How much LED load can this NSi photocontrol switch?
Load ratings are 1040-1385VA LED, 2080-2770VA ballast, and 3470-4620W tungsten, with the range tracking the 208 to 277 volt supply (the higher figure at the higher voltage). For an LED retrofit, total the driver VA on the circuit and stay under that LED figure, not the tungsten number, which is much higher and only applies to incandescent flood and patio lamps.
3) Will a stem-mount photocontrol like this hold up outdoors in a cold climate?
The Lexan housing is rated for operation from -40 to +140 F, so it covers northern winters and hot roof or wall-pack locations. Lexan is the impact-resistant housing choice over a metal shell for exposed exterior mounting.
4) At what light level does the NSi 20002 turn lights on and off?
Turn-on is 1 to 5 footcandles and turn-off is 3 to 15 footcandles. It is a fixed-position control, so there is no sensitivity adjustment screw; if you need to dial the trip point in on a specific site, you want an adjustable photocontrol instead.
5) Why do the lights take a minute to come on after it gets dark, and will headlights cycle the fixture?
There is a built-in 2 minute timing range. The CdS cell plus that delay keeps passing headlights, lightning, or a brief shadow from short-cycling the lighting load, so a short delay at dusk and dawn is normal operation, not a fault.
6) Is this NSi photocontrol UL listed for a commercial job spec?
It carries cULus listing, covering both US and Canadian requirements, which is what most exterior lighting specs call for on a line-voltage photocontrol.
7) Does this photocontrol add measurable standby load to a lighting panel?
Draw is under 1 watt in operation, so even a few dozen of them across a property add negligible load. Useful if you are tallying parasitic draw for an energy audit.
How fast can I get the NSi 20002 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the NSi 20002 come with a warranty?
Absolutely. The NSi 20002 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the NSi 20002?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the NSi 20002 from ZenSupply?
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