Authorized Partner Distributor

NSI Industries

Serving Wisconsin, Midwest United States

Authorized Partner Distributor for NSI Industries, serving Wisconsin, Midwest United States

NSI Industries logo

About NSI Industries

NSI Industries is a U.S.-based powerhouse in the electrical and mechanical space—known for building smart, practical solutions that make life easier for contractors, distributors, and OEMs. Their commitment to American manufacturing, deep product expertise, and portfolio of trusted brands have made them a go-to for high-quality components that work right the first time.

At the core of NSI’s offering is the legendary Polaris line—pre-insulated connectors that have been setting the standard for over 30 years. Polaris connectors are dual-rated for copper and aluminum, easy to install with just a hex key and torque wrench, and insulated with tough, high-dielectric plastisol. For panel builders, installers, and field crews, they save time, reduce risk, and hold up under pressure.

Metallics, another long-standing NSI brand, brings a full lineup of fasteners, anchors, and hardware built to keep jobs on schedule and parts on hand. With roots dating back to 1959, Metallics is known for reliable fill rates, same-day shipping, and rock-solid consistency across screws, washers, bolts, and more. It's a brand built around practical speed and supply-chain confidence.

NSI’s strong focus on U.S.-based production helps ensure product availability, tight quality control, and responsiveness to customer needs. That’s why Gross Automation continues to rely on NSI—and why our customers trust us to deliver the right solutions, whether you’re wiring a new facility or maintaining a fleet of machines in the field.

NSI Industries offers a diverse portfolio of brands that cater to various electrical and construction needs. Their lineup includes Bridgeport Fittings for electrical fittings and connectors, Polaris for wire connectors and lugs, Tork for timers and controls, and Platinum Tools for datacom and telecom solutions. Additionally, NSI features Remke for industrial-grade electrical connectors, Metallics for fasteners and anchors, and Duro Dyne for HVAC accessories. The company also produces lighting solutions under the Superlume brand and offers wire management products through TERMINATOR. Rounding out their offerings are WarriorWrap electrical tapes and Rhino Safety personal protective equipment.

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.