Authorized NSI Industries Distributor
NSI Industries IT-250 - The Polaris IT-250 Multi-Tap Dual-Side Entry Connector features 2 ports sized for 250 MCM to 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Dual rated for use with copper or aluminum cables. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
NSI Industries

IT-250

UPC: 662381950079

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Technical Bulletin

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Minimum Qty: 6

Multiplier: 6

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Overview

Designed for speed and reliability in industrial, commercial, and utility applications, the IT-250 eliminates the need for tape, additional covers, or specialized tools—installation requires only a hex key and torque wrench. The connector’s aluminum alloy body is coated with high-dielectric strength plastisol insulation, providing abrasion, chemical, and UV resistance while preventing combustion. Each port is pre-loaded with oxide inhibitor to ensure long-term conductivity, and removable access plugs allow unused entry points to be sealed, reducing dust and moisture ingress. The IT-250 supports both copper and aluminum cables, with maximum ampacity ratings of 290A for copper and 230A for aluminum at 90°C operating temperature. With a compact footprint of 2.12" (L) x 2.25" (W) x 2.25" (H) and a torque rating of 360 in-lbs, the connector is ideal for installations in cable trays, panel boards, ducts, raceways, or troughs. Compatible with parallel configurations and available in a range of port sizes, the IT-250 is part of NSI Industries’ Polaris line of pre-insulated connectors, trusted for over 50 years in splicing applications where safety and efficiency are critical.
  • Pre-insulated aluminum alloy body with plastisol insulation for dielectric strength and durability
  • Dual-side entry ports with removable access plugs for unused openings
  • Dual-rated for copper (290A max) and aluminum (230A max) at 90°C
  • No tape or additional covers required; installs with hex key and torque wrench
  • Professional Performance: The durable layer of insulation on each Polaris connector is UV, abrasion and chemical-resistant for reliable performance

Specifications

Aluminum Conductor Max AMP
230 Amp
Aluminum Conductor Note
Dual Rated for use with copper and or aluminum cables. Not for use with fine-stranded, flexible cables
Application
Wire Termination
Color
Black
Copper Conductor Max
290 Amp
Environmental Conditions
90 C
Finish
Plastisol Insulated
Material
Aluminum
Number Of Conductors
2
Number Of Poles
1
Size
L=2.120 - W=2.250 - H=2.250 IN
Special Features
(2) 250 MCM-6 AWG - Dual Rated
Standard
UL 486A/B
Temperature Rating
90 C
Type
Multi Cable
Voltage Rating
600 V
Warranty
1 Year
Wire Size
250 MCM-6 AWG
Wire Type
Class B & C
Wire/Cable Class
Class B, Class C
Package Dimensions (L x W x H)
2.12 IN x 2.25 IN x 2.25 IN
Package Dimensions (L x W x H)
5.3848 cm x 5.715 cm x 5.715 cm
Package Weight (Imperial)
0.240 L
Package Weight (Metric)
0.109 kg
The Polaris ISR-250 Multi-Tap In-Line Entry Connector features 2 ports sized for 250 MCM - 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

ISR-250

The Polaris ISR-250 Multi-Tap In-Line Entry Connector features 2 ports sized for 250 MCM - 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
Space Cap, Conduit Size 3/4 Inch, Length 2-15/32 Inches, Width 1-47/64 Inch, Material Plastic

BT 502

Space Cap, Conduit Size 3/4 Inch, Length 2-15/32 Inches, Width 1-47/64 Inch, Material Plastic
The Polaris IPLDH750-4 Multi-Tap Dual-Sided Entry Connector features 4 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

IPLDH750-4

The Polaris IPLDH750-4 Multi-Tap Dual-Sided Entry Connector features 4 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
The Polaris IPLD3/0-12 Multi-Tap Dual-Sided Entry Connector features 12 ports sized for 3/0 - 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

IPLD3/0-12

The Polaris IPLD3/0-12 Multi-Tap Dual-Sided Entry Connector features 12 ports sized for 3/0 - 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
The Polaris IT-350 Multi-Tap Dual-Side Entry Connector features 2 ports sized for 350 MCM to 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Dual rated for use with copper or aluminum cables. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

IT-350

The Polaris IT-350 Multi-Tap Dual-Side Entry Connector features 2 ports sized for 350 MCM to 6 AWG wires. The body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Dual rated for use with copper or aluminum cables. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
The Polaris IPLDH750-10 Multi-Tap Dual-Sided Entry Connector features 10 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

IPLDH750-10

The Polaris IPLDH750-10 Multi-Tap Dual-Sided Entry Connector features 10 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
The Polaris IPLDH750-5 Multi-Tap Dual-Sided Entry Connector features 5 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

IPLDH750-5

The Polaris IPLDH750-5 Multi-Tap Dual-Sided Entry Connector features 5 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.
The Polaris IPLDH750-8 Multi-Tap Dual-Sided Entry Connector features 8 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

IPLDH750-8

The Polaris IPLDH750-8 Multi-Tap Dual-Sided Entry Connector features 8 ports sized for 750 - 250 MCM wires. The heavy-duty body is made from aluminum alloy wrapped in a layer of plastisol insulation. Each dual-sided port is pre-loaded with an oxide inhibitor, with removable access plugs over the hex screws used to tighten the connections. Each port has two pressure screws to ensure the best connection possible in demanding applications. Installs with a hex key and torque wrench, without any tape or additional supplies. Designed for use in a wide range of splicing applications, including installation in cable trays, panel boards, ducts, raceways or troughs.

Frequently Asked Questions

Can the IT-250 be used with aluminum cables?

Yes, the IT-250 is dual-rated for use with both copper and aluminum cables.

What wire sizes does the IT-250 support?

The IT-250 supports wire sizes from 250 MCM to 6 AWG for both copper and aluminum conductors.

What is the maximum operating temperature?

The IT-250 is rated for a maximum operating temperature of 90°C.

Does the IT-250 require additional covers or tape?

No, the IT-250 is a pre-insulated, all-in-one design that eliminates the need for tape or additional covers.

What is the maximum ampacity for copper and aluminum?

The IT-250 supports a maximum ampacity of 290A for copper and 230A for aluminum at 90°C.

What tools are required to install the IT-250?

Installation requires a hex key and torque wrench to achieve the specified torque of 360 in-lbs.

Is the IT-250 resistant to UV and chemicals?

Yes, the plastisol insulation is UV resistant, abrasion resistant, and resistant to chemicals.

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