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NSI Industries SC-300 - StandardBarrel TinnedCopperSplice300 MCM Standard Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

NSI Industries SC-300 StandardBarrel TinnedCopperSplice300 MCM Standard Barrel Tinned CopperSplices is a type…

UPC: 662381037114


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Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The NSI Industries SC-300 Tinned Copper Compression Splice is a high-conductivity, short-barrel connector engineered for reliable electrical connections in demanding industrial applications. Manufactured from premium high-conductivity copper tubing and tin-plated for superior corrosion resistance, this splice ensures long-term performance in harsh environments. Designed specifically for 300 MCM copper cables with an expanded wire range accommodating 300 MCM to 2/0 AWG, the SC-300 delivers exceptional conductivity and minimal resistance for maximum current transfer. Key specifications include a 90°C temperature rating and a maximum voltage of 600V, with suitability for applications up to 35KV when installed according to cable manufacturer voltage stress relief instructions. The splice features a positive center stop to prevent over-insertion and flared openings at both ends to facilitate smooth cable insertion, particularly for flexible and extra-flexible cables such as locomotive, welding, and mining cable. Serrations indicate proper crimp locations for optimal performance, ensuring a secure crimp every time. UL486A Listed and cULus Listed (155027), the SC-300 meets rigorous industry safety standards. Its color-coded design (White) and die-index marking enable easy identification and inventory management. Each standard carton contains 12 units, making it ideal for project planning and bulk applications.
  • High-conductivity copper construction with tin plating for corrosion resistance
  • Designed for 300 MCM to 2/0 AWG copper cables with expanded wire range
  • 90°C temperature rating, 600V maximum voltage, suitable for up to 35KV with proper installation
  • Positive center stop and flared openings for easy cable insertion and secure crimping
  • Suitable for up to 35KV when properly installed

Specifications

Application
Terminate, Splice, Tap Power Connectors
Color
White
Conductor Range
300 MCM (STR)
Connection Type
Compression
Finish
Tin Plated
Material
Copper
Number Of Conductors
2
Number of Poles
1
Size
L=2.10 - OD=.810 - ID=.660
Size
300 MCM
Special Features
300 MCM (STR) - CU Splice
Standard
UL486A/B
Type
Short Barrel - CU Splice
Voltage Rating
35 kV
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
2.098 IN x 0.815 IN x 0.815 IN
Package Dimensions (L x W x H)
5.3289 cm x 20.701 mm x 20.701 mm
Package Weight (Imperial)
1.680 L
Package Weight (Metric)
0.762 kg
Offset Pin Terminal 300 MCM All-aluminum Pin Terminals is designed for termination of both aluminum and copper conductors. The pin is offset for use in tight spaces and for ease of installation in side-by-side terminations. The solid pin is made of aluminum and is tin-plated and pre-filled with oxide inhibitor. A cover is provided for quick installation. Rated 600 Volts.

PTO-300

Offset Pin Terminal 300 MCM All-aluminum Pin Terminals is designed for termination of both aluminum and copper conductors. The pin is offset for use in tight spaces and for ease of installation in side-by-side terminations. The solid pin is made of aluminum and is tin-plated and pre-filled with oxide inhibitor. A cover is provided for quick installation. Rated 600 Volts.
The SCS2-Q Copper Compression Lug Lug, standard barrel, has color-coded barrels marked with Panduit and specified competitor die index numbers for proper crimp die selection. An inspection window aids to visually assure full conductor insertion, and the tin-plate material helps to inhibit corrosion. UL Listed and CSA Certified to 35 KV and temperature rated to 90 C.

SCS2-Q

The SCS2-Q Copper Compression Lug Lug, standard barrel, has color-coded barrels marked with Panduit and specified competitor die index numbers for proper crimp die selection. An inspection window aids to visually assure full conductor insertion, and the tin-plate material helps to inhibit corrosion. UL Listed and CSA Certified to 35 KV and temperature rated to 90 C.
Cast-Copper Two-Way Reducing Splice for 10 Str Wire to 1/0 Str, Die Code 45, Die Color Code Black

251-30485-1085

Cast-Copper Two-Way Reducing Splice for 10 Str Wire to 1/0 Str, Die Code 45, Die Color Code Black
Long Barrel TinnedCopperSplice1 AWG Long Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

C-1

Long Barrel TinnedCopperSplice1 AWG Long Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
2HoleShort Barrel Copper Compression Lug w/ PeepHole250MCM-1/2" Bolt Short Barrel Copper Compression Lugs with PeepHoleis a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

GL250N

2HoleShort Barrel Copper Compression Lug w/ PeepHole250MCM-1/2" Bolt Short Barrel Copper Compression Lugs with PeepHoleis a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
Long Barrel TinnedCopperSplice4 AWG Long Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

C-4

Long Barrel TinnedCopperSplice4 AWG Long Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
Long Barrel TinnedCopperSplice2 AWG Long Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

C-2

Long Barrel TinnedCopperSplice2 AWG Long Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
StandardBarrel TinnedCopperSplice500MCM Standard Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

SC-500

StandardBarrel TinnedCopperSplice500MCM Standard Barrel Tinned CopperSplices is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.

Frequently Asked Questions

Is the SC-300 suitable for high-temperature environments?

Yes, the SC-300 has a 90°C temperature rating, making it suitable for high-temperature applications.

What is the color code for the SC-300?

The SC-300 is color-coded White for easy identification.

What wire sizes are compatible with the SC-300?

The SC-300 accommodates 300 MCM to 2/0 AWG copper cables, with an expanded range when used with the NSI N12ID dieless compression tool.

Can the SC-300 be used for grounding applications?

Yes, the SC-300 is UL467 Listed for grounding and bonding applications for sizes 8 AWG to 3/0 AWG.

What is the maximum operating voltage for the SC-300?

The SC-300 has a maximum voltage rating of 600V and is suitable for applications up to 35KV when installed according to cable manufacturer voltage stress relief instructions.

What is the maximum ampacity for the SC-300?

The maximum ampacity is based on NEC 310.15, insulation type, and conductor material. Consult the current NEC manual for specific values.

How is the SC-300 installed?

The SC-300 is installed using a compression tool. Serrations on the splice indicate proper crimp locations for optimal performance.

How to Install Copper Compression Connectors

This guide provides step-by-step instructions for installing copper compression connectors, ensuring secure and reliable electrical connections.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Wire brush

Supplies needed:

Copper compression connectors, Cable

  1. Strip the conductor

    Carefully strip the insulation from the conductor without nicking the strands, ensuring the stripped length allows for complete insertion into the connector barrel.

  2. Clean the conductor

    Use a wire brush to clean the stripped portion of the conductor, removing any oxide films to ensure a good electrical connection.

  3. Insert the conductor

    Insert the cleaned and stripped conductor completely into the connector barrel, ensuring it fills the barrel fully.

  4. Crimp the connector

    Using the appropriate crimping tool, apply pressure to crimp the connector securely onto the conductor, following the manufacturer's suggested crimp locations.

  5. Verify the connection

    Inspect the crimped connection to ensure it is secure and that there are no visible gaps or loose strands.

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