NSi Industries 5237-UL - TurnLock LED Electronic 105-305V IR
NSI Industries

5237-UL

UPC: 786261788955


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Technical BulletinSpecification Sheet

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Overview

The NSI Industries 5237-UL is an electronic Turn-Lock photocontrol designed for dusk-to-dawn operation. It features a UV-stabilized polycarbonate housing and window for durability. The IR-filtered silicon sensor mimics human eye response for accurate light detection. This unit includes 360-joule MOV surge protection and a DC relay with snap action for reliable switching. It operates on 105-305V AC and is compatible with LED, 1000W Tungsten, and 1800VA Ballast loads. The 5237-UL offers instant ON and a 2-5 second delay OFF to prevent false switching. It has a Fail-ON mode for safety and solid brass locking prongs. Certified to UL773 and ANSI C136.10, it comes with an 8-year warranty.
  • IR filtered silicon sensor for human eye response
  • 360 joule MOV surge protection
  • UV stabilized polycarbonate housing and window
  • Instant ON, 2-5 second delay OFF
  • 8-year warranty, UL773 and ANSI C136.10 certified

Specifications

_Power Consumption
1 Watt Average At 120 V
_Sensitivity
Turn On Is 1.5fc - Off-On Ratio Is 1.5:1 Average
_Sensor
Molded Sealed IR
_Supply Voltage
105-305 VAC
Application
Local Utility-Street-Highway Lighting Control
Enclosure
Polycarbonate
Environmental Conditions
-40 to + 158 F
Frequency Rating
50-60 Hz
Mounting
Twist Lock
Operating Temperature
-40 to + 158 F
Size
H=2.187 - W=3.187 IN
Special Features
360 Joule MOV (Metal Oxide Varistor) Surge Arrestor - Locking Prongs - Silicon Photosensor
Standard
UL
Timing Range
3-5 Second Delay
Type
Utility Grade Electronic With Fail On Mode
Package Dimensions (L x W x H)
3.187 IN x 3.187 IN x 2.187 IN
Package Dimensions (L x W x H)
8.095 cm x 8.095 cm x 5.555 cm
Package Weight (Imperial)
0.266 L
Package Weight (Metric)
0.121 kg

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Frequently Asked Questions

What is the temperature rating for the connectors?

The connectors have a temperature rating of 90 °C.

What is the maximum voltage for these connectors?

The maximum voltage for the connectors is 600V, with a maximum of 2000V per UL486B.

Are the connectors compatible with copper conductors?

Yes, the connectors are designed for use with both copper and aluminum conductors.

What materials are the connectors made from?

The connectors are made of 6061T-6 aluminum alloy and are electro-tin plated for low contact resistance.

What is the wire range for the connectors?

The wire range varies by connector type, with options from 2 AWG to 1000 MCM.

What is the recommended torque value for installation?

The recommended torque values range from 50 to 550 in/lbs depending on the connector type.

What safety precautions should I take during installation?

Always ensure power is off before installation and follow all local electrical codes.

Frequently Asked Questions about NSi Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.