NSI Industries STL750-8 - 8 Port Aluminum Dual Rated Transformer Connector 750 MCM - 250 MCM made from 6061T-6 aluminum alloy. It is electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
NSI Industries

STL750-8

UPC: 662381097118

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Overview

NSi Industries STL750-8 is an 8-port aluminum dual-rated transformer connector designed for high-performance electrical connections in transformer applications. Engineered from 6061T-6 aluminum alloy, this connector ensures superior electrical conductivity and mechanical strength while resisting corrosion. The electro-tin plating minimizes contact resistance, enhancing reliability in high-current scenarios. With a voltage rating of 600V and a temperature rating of 90°C, the STL750-8 is ideal for secondary transformer connections, slip-fit or threaded transformers, and both copper and aluminum conductors. The dual-rated design accommodates wire ranges from 750 MCM down to 250 MCM, providing versatility for various conductor sizes. Two NEMA 1/2" mounting holes with 1.75" spacing enable easy attachment to transformers or panels, while the 5/16" internal hex pressure screws ensure secure, vibration-resistant connections. The connector's dimensions are 14.28" in length, 1.44" in width, and 2.00" in height, making it suitable for compact installations. Compliance with ANSI C119.4 Class A and UL standards ensures adherence to industry safety and performance benchmarks. Whether for new installations or retrofits, the STL750-8 delivers durable, low-maintenance performance in demanding electrical environments.
  • Made from 6061T-6 aluminum alloy
  • Electro-tin plated for low contact resistance.
  • Two NEMA 1/2 inch holes for easy attachment.
  • 2 Mounting Holes
  • 1/2" Mounting Bolt Size
  • Dual-rated for copper and aluminum conductors
  • 5/16" internal hex pressure screws for secure, vibration-resistant connections
  • Dimensions: 14.28" L x 1.44" W x 2.00" H

Specifications

Application
Wire Termination
Bolt Size
1/2 IN
Color
Aluminum
Environmental Conditions
90 C
Finish
Tinned
Finish
Tin Plated
Material
Aluminium;Aluminum
Material
Aluminum
Material
6061T-6 Aluminum Alloy
Mounting Hole Spacing
1.75 in
Mounting Hole Spacing
44.45 mm
Mounting Type
Two NEMA 1/2" holes
Nema Rating
NEMA 1/2"
Number Of Conductors
8
Number of Conductors/Ports (Main/Primary)
8
Number Of Mounting Holes
2
Number of Poles
1
Number Of Ports
8
Poles
8 Port
Size
750 MCM - 250 MCM
Special Features
(8) 750-250 MCM - Dual Rated - 3 Pack
Temperature Rating, Maximum
194 F
Temperature Rating, Maximum
90 C
Temperature Rating, Minimum
194 F
Temperature Rating, Minimum
90 C
Type
Transformer Lug
Voltage Rating
600 VAC
Warranty
1 Year
Package Dimensions (L x W x H)
14.28 IN x 1.44 IN x 2 IN
Package Dimensions (L x W x H)
36.2712 cm x 3.6576 cm x 5.08 cm
Package Weight (Imperial)
5.850 L
Package Weight (Metric)
2.654 kg
6 Port Aluminum Dual Rated Transformer Connector 750 MCM - 250 MCM Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL750-6

6 Port Aluminum Dual Rated Transformer Connector 750 MCM - 250 MCM Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
4 Port Aluminum Dual Rated Transformer Connector 750 MCM - 250 MCM Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL750-4

4 Port Aluminum Dual Rated Transformer Connector 750 MCM - 250 MCM Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
8 Port Aluminum Dual Rated Transformer Connector 500 MCM - 4 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL500-8

8 Port Aluminum Dual Rated Transformer Connector 500 MCM - 4 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
Single Lug 4-14 AWG Al (2 EA)

4TR

Single Lug 4-14 AWG Al (2 EA)
1 Port Aluminum Lug 500 MCM - 4 AWG Aluminum Single Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy. Electro-tin plated for low contact resistance. Suitable for use with both copper and aluminum conductors. Temperature Rating 90 degrees C. Rated 600 volts (2000V max. per UL486B). UL 486A/B Listed. .

500T

1 Port Aluminum Lug 500 MCM - 4 AWG Aluminum Single Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy. Electro-tin plated for low contact resistance. Suitable for use with both copper and aluminum conductors. Temperature Rating 90 degrees C. Rated 600 volts (2000V max. per UL486B). UL 486A/B Listed. .
1 Port Aluminum Lug 350 MCM - 6 AWG Aluminum Single Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy. Electro-tin plated for low contact resistance. Suitable for use with both copper and aluminum conductors. Temperature Rating 90 degrees C. Rated 600 volts (2000V max. per UL486B). UL 486A/B Listed. .

350T

1 Port Aluminum Lug 350 MCM - 6 AWG Aluminum Single Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy. Electro-tin plated for low contact resistance. Suitable for use with both copper and aluminum conductors. Temperature Rating 90 degrees C. Rated 600 volts (2000V max. per UL486B). UL 486A/B Listed. .
Cast Bronze Terminal Lug 500 - 300 MCM 4 Port 2 Mounting Holes Copper Terminal Lugs are made of high copper alloy. They are used for joining a wide range of cables or terminal blocks.

TL500-4L2

Cast Bronze Terminal Lug 500 - 300 MCM 4 Port 2 Mounting Holes Copper Terminal Lugs are made of high copper alloy. They are used for joining a wide range of cables or terminal blocks.
4 Port Aluminum Dual Rated Transformer Connector 350 MCM - 6 AWG made from 6061T-6 aluminum alloy. It is electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL350-4

4 Port Aluminum Dual Rated Transformer Connector 350 MCM - 6 AWG made from 6061T-6 aluminum alloy. It is electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
4 Port Aluminum Dual Rated Transformer Connector 250 MCM - 6 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL250-4

4 Port Aluminum Dual Rated Transformer Connector 250 MCM - 6 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
4 Port Aluminum Dual Rated Transformer Connector 500 MCM - 4 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL500-4

4 Port Aluminum Dual Rated Transformer Connector 500 MCM - 4 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.
6 Port 8 Mounting Hole Aluminum Dual Rated Transformer Lug 350 MCM - 6 AWG Aluminum Dual Rated Transformer Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low 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 600 Volts. Temperature Rating 90 degrees C.

6-350L8

6 Port 8 Mounting Hole Aluminum Dual Rated Transformer Lug 350 MCM - 6 AWG Aluminum Dual Rated Transformer Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low 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 600 Volts. Temperature Rating 90 degrees C.
8 Port Aluminum Dual Rated Transformer Connector 250 MCM - 6 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

STL250-8

8 Port Aluminum Dual Rated Transformer Connector 250 MCM - 6 AWG Transformer Connectors are made from 6061T-6 aluminum alloy. They are electro-tin plated for low contact resistance. Two NEMA 1/2" holes for easy attachment. Rated 600 volts.

Frequently Asked Questions about NSI Industries

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