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NSI Industries TS250-2 - 2 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

NSI Industries TS250-2 2 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated…

UPC: 662381023568

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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 TS250-2 is a dual-rated transformer stud connector engineered for high-performance electrical connections in transformer applications. Constructed from high-strength 6061-T6 aluminum alloy, it delivers superior electrical conductivity and mechanical durability, ensuring long-term reliability. The connector features clear plating on the conductor side to minimize contact resistance, while the stud is tin-plated copper, providing enhanced conductivity when interfacing with transformer terminals. This set-screw design is both versatile and reusable, accommodating both copper and aluminum conductors within a wire range of 250 MCM down to -6 AWG. It is rated for a maximum voltage of 600V and operates reliably at temperatures up to 90°C (AL9CU). The connector includes two conductor ports and is secured with a 1/2" mounting bolt, with a recommended torque value of 360 in./lbs. for proper installation. A 5/16" hex wrench is required for installation, and the compact design measures 2.59" in length, 0.88" in width, and 1.13" in height, making it suitable for tight spaces. Each standard carton contains one unit, ensuring easy handling and storage.
  • Dual rated for copper and aluminum conductors, 250 MCM -6 AWG.
  • Constructed from high-strength 6061-T6 aluminum alloy for durability.
  • Clear plated conductor side and tin-plated copper stud for low contact resistance.
  • Meets or exceeds ANSI C119.4 Class A standards.
  • Rated for 600V maximum and 90°C operating temperature.

Specifications

Connection Type
Set Screw
Material
6061-T6 aluminum alloy
Material
6061T-6 Aluminum Alloy, Tin Plated Copper
Mounting Type
1/2" Mounting Bolt
Poles
2
Series
TS Series
Size
250 MCM -6 AWG
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
2.59 IN x 0.88 IN x 1.13 IN
Package Dimensions (L x W x H)
6.5786 cm x 22.352 mm x 2.8702 cm
Package Weight (Imperial)
0.440 L
Package Weight (Metric)
0.200 kg
2 Port Aluminum Dual Rated Transformer Stud Connector 350 MCM -6 AWG with 5/8" Stud Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

TS350-2

2 Port Aluminum Dual Rated Transformer Stud Connector 350 MCM -6 AWG with 5/8" Stud Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.
Tin Plated Aluminum Wire Connector, 2/0 - 600 kcmil, Torque 500 pounds, Dual Rated Connector Copper and Aluminum 90 Degree C. CSA/UL listed. Length 1-5/8 inch, Width 1-15/16 inch, Height approximately 1-13/16 inch. One 25/64 inch Diameter Hole and One Tap 7/8-14 UNF-2B. Includes One Tin Plated Aluminum 7/8-14 x 1-1/16 inch Long Set Screw with 1/2 inch Recessed Hex Head

AHS 600

Tin Plated Aluminum Wire Connector, 2/0 - 600 kcmil, Torque 500 pounds, Dual Rated Connector Copper and Aluminum 90 Degree C. CSA/UL listed. Length 1-5/8 inch, Width 1-15/16 inch, Height approximately 1-13/16 inch. One 25/64 inch Diameter Hole and One Tap 7/8-14 UNF-2B. Includes One Tin Plated Aluminum 7/8-14 x 1-1/16 inch Long Set Screw with 1/2 inch Recessed Hex Head
Multi-Tap connector, double-sided, clear insulation, 2 ports, 600 kcmil - - #6 STR AWG

PCSB600-2-4Y

Multi-Tap connector, double-sided, clear insulation, 2 ports, 600 kcmil - - #6 STR AWG
Use the dual-rated NSI TS1/0-2 Mechanical Lug Connector with either aluminum or copper conductors when connecting to threaded or slip-fit transformers. This versatile and reusable set-screw connector is made from high-strength 6061-T6 aluminum alloy for superior electrical and mechanical performance. The copper stud is 3" long, 3/8" in diameter and tin plated – providing low-contact resistance for connection to the transformer. Two conductor ports fit copper or aluminum wire in the range of 1/0 to 4 AWG. NSI mechanical lug connectors meet or exceed ANSI C119.4 Class A, have a temperature rating of 90 °C and a maximum voltage of 600V. Stock products you can rely on—stock NSI.

TS1/0-2

Use the dual-rated NSI TS1/0-2 Mechanical Lug Connector with either aluminum or copper conductors when connecting to threaded or slip-fit transformers. This versatile and reusable set-screw connector is made from high-strength 6061-T6 aluminum alloy for superior electrical and mechanical performance. The copper stud is 3" long, 3/8" in diameter and tin plated – providing low-contact resistance for connection to the transformer. Two conductor ports fit copper or aluminum wire in the range of 1/0 to 4 AWG. NSI mechanical lug connectors meet or exceed ANSI C119.4 Class A, have a temperature rating of 90 °C and a maximum voltage of 600V. Stock products you can rely on—stock NSI.
6 Port Heavy Duty Dual Rated Transformer Lug 350 MCM - 6 AWG Heavy Duty Dual Rated Transformer Lugs are versatile and reusable set screw connectors made from high strength 6061-T6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low contact resistance. For use with copper or aluminum conductors. Mounting hole spacing is NEMA 1-3/4". Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

6-350LL8

6 Port Heavy Duty Dual Rated Transformer Lug 350 MCM - 6 AWG Heavy Duty Dual Rated Transformer Lugs are versatile and reusable set screw connectors made from high strength 6061-T6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low contact resistance. For use with copper or aluminum conductors. Mounting hole spacing is NEMA 1-3/4". Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.
4 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

TS250-4

4 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.
3 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

TS250-3

3 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.
8 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

TS250-8

8 Port Aluminum Dual Rated Transformer Stud Connector 250 MCM -6 AWG Aluminum dual rated transformer stud connectors are versatile and reusable set screw connectors made from 6061T-6 aluminum alloy for superior electrical and mechanical performance. Clear plated for low contact resistance- stud is tin plated copper which provides low contact resistance for connection to transformer. For use with copper and aluminum conductors. Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.

Frequently Asked Questions

What is the wire range for the NSI TS250-2 connector?

The NSI TS250-2 connector is designed for use with copper and aluminum conductors ranging from 250 MCM down to -6 AWG.

What is the maximum voltage rating for this transformer stud connector?

The NSI TS250-2 transformer stud connector has a maximum voltage rating of 600V.

What material is the NSI TS250-2 connector made from?

The NSI TS250-2 connector is made from high-strength 6061-T6 aluminum alloy.

What size mounting bolt is required for the TS250-2 connector?

The TS250-2 connector requires a 1/2" mounting bolt.

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