NSI Industries N-750SP - All Purpose Split Bolt Connector 750 MCM All Purpose Split Bolt Connectors are used for combinations of aluminum to copper, aluminum to aluminum, steel to aluminum, copper to copper, and steel to copper applications. They have an electro-tinned body. UL listed for copper and copperweld wires only. Includes nut, spacer and pressure pad.
NSI Industries

N-750SP

UPC: 662381020420

Documents & Media
Technical Bulletin

Contact for Pricing

Minimum Qty: 2

Multiplier: 2

*Contact for lower quantities*

Overview

The NSI Industries N-750SP All Purpose Split Bolt Connector is a high-performance, UL-listed electrical connector designed for reliable splicing of copper and aluminum conductors up to 750 MCM. Engineered for versatility, this split bolt connector accommodates multiple conductor combinations including aluminum-to-copper, aluminum-to-aluminum, steel-to-aluminum, copper-to-copper, and steel-to-copper applications. The electro-tinned body ensures corrosion resistance and low contact resistance, while the included nut, spacer, and pressure pad guarantee secure, long-lasting connections. UL 486A/B listed for copper and copperweld wires, the N-750SP is ideal for utility, industrial, and commercial electrical installations where durability and compliance are critical. With a recommended torque range of 666.6–1000 in-lb, this connector delivers consistent performance under demanding conditions. The robust design minimizes inventory requirements by handling a wide range of wire sizes, reducing the need for multiple connector types. Whether used in overhead or underground applications, the N-750SP provides a dependable solution for splicing main and tap conductors in power distribution systems.
  • Handles conductor combinations: Al-to-Cu, Al-to-Al, Steel-to-Al, Cu-to-Cu, Steel-to-Cu
  • UL 486A/B listed for copper and copperweld wires only
  • Electro-tinned body for corrosion resistance and low contact resistance
  • Includes nut, spacer, and pressure pad for secure connections
  • Recommended torque range: 666.6–1000 in-lb

Specifications

Connection Type
Split Bolt
Environmental Conditions
90 C
Finish
Tin Plated Copper
Material
Electro-tinned
Number Of Conductors
2
Number Of Poles
1
Size
L=3.750 - W=2.130 IN
Size
750 MCM
Temperature Rating
90 C
Voltage Rating
600 V
Warranty
1 Year
Wire Size
250 - 750 MCM
Wire Type
Class A & B
Package Dimensions (L x W x H)
1.75 IN x 1.94 IN x 3.51 IN
Package Dimensions (L x W x H)
4.445 cm x 4.9276 cm x 8.9154 cm
Package Weight (Imperial)
1.720 L
Package Weight (Metric)
0.780 kg
Copper Split Bolt Connector 500 MCM Copper Split Bolt Connectors are high-strength solderless service connectors made of high-copper alloy for copper and copperweld wires. Type for two maximum wire sizes.

N-500

Copper Split Bolt Connector 500 MCM Copper Split Bolt Connectors are high-strength solderless service connectors made of high-copper alloy for copper and copperweld wires. Type for two maximum wire sizes.
Cable Clamp HD Blk .25" 100

N5000A

Cable Clamp HD Blk .25" 100

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.