NSI Industries SPM-5L - Service Post Connector - One Wire Type 2 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
NSI Industries

SPM-5L

UPC: 662381021045

Contact for Pricing

Overview

The NSI Industries SPM-5L Service Post Connector is a high-performance grounding and bonding solution engineered for connecting one or two 4 AWG to 2 AWG copper conductors. Constructed from high copper content hard-drawn rod, this connector delivers superior conductivity and mechanical strength for demanding electrical infrastructure applications. The lay-in design simplifies conductor insertion while ensuring a secure, vibration-resistant connection ideal for continuous loop grounding systems. Key applications include grounding to busbars, steel structures, or transformer housings, with full compliance for direct burial in earth or concrete per UL467 standards. The SPM-5L features a 0.375" x 16 UNC stud with 0.625" hex nut, providing compatibility with standard tools and torque specifications. With a standard package quantity of 12 units, this connector is optimized for both OEM installations and field service applications where reliability and code compliance are critical. UL486A/B listed for wire connections and UL467 listed for grounding/bonding, the SPM-5L eliminates the need for separate grounding components in many installations. Its corrosion-resistant copper construction ensures long-term performance in harsh environments, while the pressure bar design maintains consistent contact pressure across the full conductor range. When combined with NSI's reputation for quality grounding solutions, the SPM-5L delivers a cost-effective alternative to traditional compression lugs or mechanical connectors in service entrance and distribution systems.
  • Connects 4 AWG to 2 AWG copper conductors (one or two wires)
  • UL486A/B listed for wire connections and UL467 listed for grounding/bonding
  • High copper content hard-drawn rod construction for maximum conductivity
  • Lay-in design enables continuous loop grounding and bonding applications
  • Direct burial rated for earth or concrete installations

Specifications

Application
Wire Termination
Color
Copper
Environmental Conditions
90 C
Finish
Copper
Housing Material
Copper
Material
Copper
Number of Conductors
1
Number Of Poles
1
Size
Stud=3/8 x 16-1 1/8 - Hex Nut=5/8 x 18 IN
Special Features
4 STR-2 STR - 12 Pack
Standard
UL486B
Temperature Rating
90 C
Temperature Rating, Maximum
194 F
Temperature Rating, Maximum
90 C
Temperature Rating, Minimum
194 F
Temperature Rating, Minimum
90 C
Type
Service Post Connectors
Voltage Rating
600 V
Warranty
1 Year
Wire Size
4 STR - 2 STR
Wire Type
Class A & B
Package Dimensions (L x W x H)
0.812 IN x 0.812 IN x 1.125 IN
Package Dimensions (L x W x H)
20.6248 mm x 20.6248 mm x 2.8575 cm
Package Weight (Imperial)
0.166 L
Package Weight (Metric)
0.075 kg
Service Post Connector - One Wire Type 4/0 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.

SPM-9L

Service Post Connector - One Wire Type 4/0 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
Service Post Connector - One Wire Type 2 SOL Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.

SPM-4L

Service Post Connector - One Wire Type 2 SOL Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
Service Post Connector - One Wire Type 8 STR Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.

SPM-1L

Service Post Connector - One Wire Type 8 STR Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
Service Post Connector - Two Wire Type 10- 2 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.

SPM-25L

Service Post Connector - Two Wire Type 10- 2 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
All Purpose Split Bolt Connector 1000 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.

N-1000SP

All Purpose Split Bolt Connector 1000 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.
Service Post Connector - One Wire Type 1/0 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.

SPM-6L

Service Post Connector - One Wire Type 1/0 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
All Purpose Split Bolt Connector 4 AWG is 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.

N-4SP

All Purpose Split Bolt Connector 4 AWG is 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.
Service Post Connector - Two Wire Type 2-2 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.

SPM-27L

Service Post Connector - Two Wire Type 2-2 AWG Service Post Connectors is used for connecting one or two conductors. Made from high copper content hard-drawn rod. Lay-in feature makes them excellent for continuous loop grounding and bonding. Used to ground to bar or plate. Suitable for direct burial in earth or concrete.
Copper Split Bolt Connector 350 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-350

Copper Split Bolt Connector 350 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.
Copper Split Bolt Connector 750 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-750

Copper Split Bolt Connector 750 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.
All Purpose Split Bolt Connector 350 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.

N-350SP

All Purpose Split Bolt Connector 350 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.
Copper Split Bolt Connector 1/0 AWG 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-1/0

Copper Split Bolt Connector 1/0 AWG 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.

Frequently Asked Questions about NSI Industries

How are Tork products typically installed?

Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

What environmental ratings do Tork products have?

Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

What communication protocols do Tork products support?

Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

What are the key features of Tork products?

Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

What are the main product lines offered by Tork?

Tork offers a diverse range of products primarily focused on industrial automation, including TORK® Photocontrols, lighting controls, and various electrical components such as enclosures, occupancy sensors, and grounding solutions. These products are designed to enhance efficiency and reliability in commercial and industrial applications.

What technical support does Tork offer?

Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

What industries and applications are Tork products used for?

Tork products are utilized across a variety of industries, including food processing, healthcare, hospitality, and manufacturing. They are designed for applications such as hand hygiene, surface cleaning, and dispensing solutions, ensuring efficiency and compliance in environments that require high standards of cleanliness and safety.

What certifications and standards do Tork products comply with?

Tork products comply with UL and cUL certifications, ensuring they meet rigorous safety and performance standards. Additionally, many models are designed to meet NEMA enclosure ratings, providing protection against environmental factors.

How are Remke products typically installed?

Remke products are typically installed through a systematic process that includes site audits to verify proper wiring, followed by remote or on-site commissioning. This commissioning involves installation verification, programming, and communication testing to ensure the system operates reliably and meets design specifications.

What accessories are available for Remke products?

Remke offers a wide range of accessories for their products, including panel mounting kits, fuse holders for voltage inputs, ferrites for communication modules, and current transformers. These accessories enhance the functionality and protection of Remke's industrial automation solutions, ensuring reliable performance in various applications.