Ideal Industries Underground S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$83.17
$31.76
Ideal Industries Underground Splice Kit 4-1/0 AWG Direct Burial 600V Thermo-Shrink

Ideal Industries Underground Splice Kit 4-1/0 AWG Direct Burial 600V Thermo-Shrink

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Model: 46-402
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$83.17
$31.76
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Ideal Industries Thermo-Shrink Underground Splice Kit

Professional-Grade Direct Burial Splice Solution

The Ideal Industries Thermo-Shrink Underground Splice Kit delivers professional-grade underground splicing performance for direct burial electrical applications. This heavy-wall heat shrink splice kit features advanced adhesive liner technology designed for electricians, utility professionals, and electrical contractors, providing the reliable performance and industry-leading quality that underground electrical installations demand.

Professional Features & Benefits

Advanced Heat Shrink Technology

  • Heavy-Wall Heat Shrink Tubing - Provides complete insulation and environmental protection with superior durability
  • Adhesive Liner System - Creates watertight seal preventing moisture infiltration and corrosion
  • UV Resistant Construction - Withstands prolonged sunlight exposure without degradation or cracking
  • Direct Burial Rating - Engineered specifically for underground installation applications

Safety & Code Compliance

  • NEC 2005 Code 110-14(B) Compliant - Meets National Electric Code requirements for underground splicing
  • 600V Maximum Rating - Certified for high-voltage underground electrical systems
  • 105°C Temperature Rating - Handles extreme operating temperatures safely

Technical Specifications

Wire Range: 4-1/0 AWG for copper and aluminum conductors, Voltage Rating: 600V maximum, Temperature Rating: 105°C continuous operation, Construction: Heavy-wall heat shrink tubing with adhesive liner, Compliance: 2005 NEC Code 110-14(B), UV Resistance: Yes for outdoor applications, Direct Burial: Rated for underground installation

Installation & Setup

  1. Strip conductors to proper length ensuring clean copper or aluminum surface
  2. Position heat shrink tubing over splice area before making connection
  3. Install connector ensuring proper conductor insertion and alignment
  4. Apply controlled heat evenly to shrink tubing and activate adhesive liner
  5. Verify complete shrinkage and watertight seal formation
  6. Test installation for proper electrical continuity and insulation integrity

Professional Applications

Ideal for:

  • Underground Electrical Distribution - Primary and secondary distribution system splicing and repairs
  • Direct Burial Cable Systems - Residential and commercial underground service connections
  • Utility Infrastructure - Power company distribution network maintenance and expansion
  • Industrial Underground Wiring - Manufacturing facility and plant underground electrical systems
  • Municipal Electrical Systems - Street lighting and traffic signal underground connections
  • Commercial Construction - Shopping centers and office building underground electrical feeds
  • Residential Development - Subdivision electrical distribution and service lateral connections
  • Emergency Repairs - Field splicing of damaged underground cables and conductors

Thermo-Shrink Technology Advantage

Ideal Industries Thermo-Shrink technology provides superior environmental protection through advanced heat-activated adhesive liner systems that create permanent watertight seals. The heavy-wall construction ensures long-term durability in harsh underground conditions while maintaining electrical integrity and preventing moisture-related failures.

Why Choose Ideal Industries Quality?

Ideal Industries demonstrates unwavering commitment to NEC code compliance, direct burial safety certifications, and reliable underground performance. Our splice kits undergo rigorous testing for moisture resistance, temperature cycling, and long-term durability, ensuring electrical professionals can trust these products for critical underground electrical installations and utility infrastructure projects.

Manufacturer Resources

Product Specs

Product Group:
Wiring Devices
Department:
Electrical
Product Subgroup:
Wiring Accessories

Ideal Industries 46-402 – Frequently Asked Questions

1) Will the Ideal 46-402 splice kit work on 1/0 aluminum direct burial cable?
Yes. The 46-402 Thermo-Shrink underground splice kit covers 4 AWG through 1/0 AWG, and that range applies to both copper and aluminum conductors. So a 1/0 aluminum direct burial run is inside the kit's range. If your cable is larger than 1/0 or smaller than 4 AWG, this is the wrong kit.
2) Can the Ideal 46-402 splice kit be buried directly in the ground without a box?
That is what it is built for. The 46-402 is rated for direct burial, using heavy-wall heat shrink tubing with an adhesive liner that melts and seals as you shrink it, so the splice is watertight underground with no enclosure around it. The same construction is UV resistant, so a section of the repair that comes up out of the trench and sees sunlight is fine too.
3) What voltage and temperature is the Ideal 46-402 underground splice kit rated for?
600V maximum, with a 105 degree C continuous temperature rating. That covers standard secondary distribution and service lateral work, including 120/240V and 277/480V systems. It is not a medium voltage kit, so anything above 600V needs a different product.
4) Does the Ideal 46-402 splice kit include the connector, or do I need to buy that separately?
The kit is the insulation and sealing side of the splice, heavy-wall shrink tubing with the adhesive liner. The installation sequence calls for installing a connector after the tubing is slid over the cable, so plan on sourcing the crimp or split bolt connector sized for your 4 through 1/0 conductors along with the kit. You also need a heat source, propane torch or heat gun, to shrink the tubing and activate the adhesive.
5) What model number do I order for the Ideal Thermo-Shrink 4-1/0 AWG underground splice kit?
Order Ideal Industries 46-402. That single catalog number is the 4-1/0 AWG direct burial Thermo-Shrink kit, and there are no finish, size, or length options to specify with it. One kit, one part number.
6) Will heat shrink hold up on a buried splice better than tape and mastic?
The difference is the adhesive liner. On the 46-402, heat activates an adhesive inside the heavy-wall tubing that flows against the cable jacket and forms a watertight seal, so moisture cannot track along the conductor the way it eventually does under a taped wrap. Heavy-wall tubing also gives mechanical protection against backfill and rock. For a splice you intend to bury and never dig up again, that is the reason to use a kit rather than tape.
7) Can I use the Ideal 46-402 splice kit for an emergency repair on a cable that is already in a wet trench?
The kit is intended for field splicing of damaged underground cable, which is exactly that scenario. The catch is the install: the conductors have to be stripped clean and dry, and you need to apply even heat over the whole tubing to shrink it fully and melt the adhesive out to the edges. A partially shrunk tube in standing water is a failed splice, so dewater and dry the area before you torch it.
How fast can I get the Ideal Industries 46-402 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ideal Industries 46-402 come with a warranty?
Absolutely. The Ideal Industries 46-402 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ideal Industries 46-402?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Ideal Industries 46-402 from ZenSupply?
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