NSi Industries Stem & Swivel L...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$63.40
NSi Industries Stem & Swivel LED Photocontrol, 105-305 VAC

NSi Industries Stem & Swivel LED Photocontrol, 105-305 VAC

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Model: ZSS124

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

$63.40
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NSi Industries Stem & Swivel LED Photocontrol, 105-305 VAC

The NSi Industries Stem & Swivel LED Photocontrol is an Advanced LongLife ZeroCross Electronic Instant Response photocontrol built for reliable dusk-to-dawn lighting control. Designed for conduit mount installation, this photocontrol operates on a wide 105-305 VAC supply range and is cULus Listed for use in demanding lighting applications. With a molded sealed IR sensor housed in durable Lexan, it delivers consistent, instant-response switching for roadway, area, and security lighting systems.

Key Features

  • Wide Supply Voltage: 105-305 VAC input accommodates a broad range of lighting circuits and fixture types.
  • Stem & Swivel Conduit Mount: Adjustable swivel design allows precise sensor aiming for accurate light-level detection.
  • Instant Response Switching: ZeroCross Electronic Instant Response with On 1.3-1.7 and Off/On Ratio 1.5:1 for dependable turn-on at 1.5fc sensitivity.
  • Enhanced Surge Protection: Integrated 445 Joule MOV surge device helps protect the photocontrol and connected fixture from line surges.
  • Load Ratings: Rated for 1000W Tungsten, 1800VA Ballast, and 8A LED loads for compatibility with a variety of fixture types.
  • Durable Lexan Housing: Molded sealed IR sensor and Lexan enclosure withstand a wide operating temperature range of -40 to +140 F.
  • Low Power Consumption: Draws only .5 Watts, minimizing standby energy use.
  • Frequency Rating: Rated for 50-60 Hz supply frequencies.

Certifications & Compliance

  • cULus Listed

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Roadway, Area, Parking, Flood, and Security Type Lighting Fixtures
  • Dusk-to-Dawn Outdoor Lighting Control
  • Commercial and Industrial Lighting Systems
  • LED, Tungsten, and Ballast-Driven Fixture Control
  • Conduit-Mounted Photocontrol Retrofits

Why NSi Industries?

NSi Industries builds this LongLife photocontrol with a sealed IR sensor, rugged Lexan housing, and enhanced 445 Joule surge protection to deliver dependable, code-compliant performance for outdoor and area lighting control. The cULus Listed rating and wide 105-305 VAC operating range make it a versatile choice for professional electrical and lighting installations.

Manufacturer Resources

Product Specs

Mounting Method:
Conduit Mount
Product Voltage:
105-305 VAC
Standards:
cULus
Timing Range:
Instant On
Sensitivity:
Turn On Is 1.5fc
Sensor Type:
Molded Sealed IR
Product Wattage:
.5 Watts
Product Type:
Photocontrol
Operating Temperature:
-40 to + 140 F
Frequency Rating:
50-60 Hz
Configuration:
Lexan Housing
Product Material:
Lexan
Listing:
cULus
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Lighting Controls & Sensors

NSi ZSS124 – Frequently Asked Questions

1) Will the NSi ZSS124 photocontrol work on 120V and 277V circuits?
Yes. The NSi ZSS124 stem and swivel photocontrol accepts anything from 105 to 305 VAC, so the same unit covers 120V, 208V, 240V and 277V lighting circuits at 50-60 Hz. That is why it is a common standardization choice across a mixed-voltage site: one part number on the shelf instead of one per voltage.
2) How much LED load can this NSi photocontrol switch?
8A of LED load, 1800VA of ballast load, or 1000W tungsten. Size to the LED figure if you are driving LED fixtures, since the inrush and power factor on LED drivers is what the 8A rating accounts for. Multiple small LED heads can share one control as long as the total stays inside 8A at your circuit voltage.
3) Is this a stem-mount photocontrol or a twist-lock shorting cap style?
This one is a stem and swivel conduit mount unit, not a NEMA twist-lock photocontrol. It threads into a conduit hub or fixture stem entry and the swivel lets you aim the sensor away from the lamp it controls. If your fixture already has a 3-prong twist-lock receptacle on top, you want a locking-type photocontrol instead, not this stem version.
4) At what light level does the ZSS124 turn the lights on, and is there a delay?
Turn-on is at 1.5 footcandles, with instant response switching rather than a timed delay. Off/on ratio is 1.5:1 with an on point of 1.3-1.7, so it comes on at dusk and drops out at dawn without the lag you get from a delayed-response control. If you specifically need a delay to ride through passing headlights or lightning, an instant-response unit is not the one to pick.
5) Will this photocontrol survive winters and rooftop heat in an unconditioned outdoor location?
Rated -40 to +140 F, with a Lexan housing and a molded sealed IR sensor, so it is built for exposed pole, wall and rooftop mounting. The sealed sensor is the part that matters for wet locations, it keeps moisture off the eye rather than relying on a gasketed lens.
6) Does this NSi photocontrol have surge protection for pole-mounted roadway lighting?
There is an integrated 445 Joule MOV surge device in the ZSS124, which clamps line transients before they reach the switching electronics and the fixture. That is the spec to look at for exposed roadway and parking lot poles, where line surges are the usual cause of photocontrol failure.
7) Can I use one of these to control a whole bank of parking lot fixtures from a single sensor?
Yes, within the load rating. One ZSS124 can switch up to 8A of LED or 1800VA of ballast load, so a group of area or flood fixtures can run off a single control as long as the combined load stays inside that. For larger banks, use the photocontrol to drive a lighting contactor coil instead of the fixtures directly.
8) How much standby power does a photocontrol like this add to each fixture?
Half a watt. Across a large pole count that keeps the parasitic load negligible, which matters when you are counting connected load on an energy-code submittal or metering an unmetered street lighting circuit.
How fast can I get the NSi ZSS124 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 ZSS124 come with a warranty?
Absolutely. The NSi ZSS124 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 ZSS124?
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 ZSS124 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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