5kV Medium Voltage Joint Straight joint for single core 2.3-6.6kV extruded dielectric shielded cable

The Innovative Power Products MVJ 050T series joint is a heatshrinkable system for jointing shielded 5kV (2.3-6.6kV) extruded dielectric, medium voltage cable. The kit uses special materials to control electrical stress over the connector and at the shield cutbacks and provides an internal moisture seal. Insulating and shielding tubes reinsulate and reshield the area over the spliced conductor. Tinned copper mesh and braid reestablish the metallic shielding across the joint. A tough abrasion resistant black jacketing tube or wraparound jacketing sleeve provides external moisture seals plus mechanical protection.

MVJ kits provide a lightweight, compact and environmentally sealed system for splicing extruded dielectric shielded power cable. These features allow the installation of this jointing system in duct systems, vaults, submersible or direct-buried applications. This system provides a total environmental seal; joint failures in flooded vaultsare eliminated.

  • MVJ kits are factory engineered to provide fast and easy installation with reliable performance.

    All MVJ kits are designed to meet or exceed the requirements of the applicable sections of the following cable/cable accessory standards: IEEE-404, IEEE-48, ICEA-66-524, ICEA-66- 516, and ANSI C119.2.

  • MVJ 050T kits cover a wide range of conductor sizes and shapes. It will accommodate out-of-round or off-tolerance cables in both round and sector shaped conductor. The standard kit fits all cable constructions including: metallic tape, drain wire shield or Unishield® shielded power cables. The MVJ kits can be used for size transitions within the actual kit’s cable use range. Four (4) kit sizes cover all cable sizes from 8 AWG through 1000 kcmil. When preparing the cable ends, pencilling of the insulation is not required.

Electrical Specifications: 5kV Related Joints
Test Requirement
Value MVJ 050T
AC withstand, 1 minute (60 hz)
18 kV PASS
DC withstand, 15 minutes
35 kV PASS
Discharge Extinction (Corona) Voltage (<3pC)
4.3 kV >4.3 kV
Impulse withstand 1.2 x 50 μs (crest kV)
75 kV > 75kV
AC withstand 1 hour (60hz)
27 kV PASS
AC withstand 5 hour (60hz)
18 kV PASS
Continuous current rating
= Cable = Cable
Submersion test (ANSI C119.1)
Pass 52 cycles Pass 52 cycles
Bill of Materials: Std. Pkg.: 1 kit = 1 each, 1/C joint
Item Description
Quantity Supplied
Field Control Material
As Required In All Kits
Insulating Tube(s)
As Required In All Kits
Shielded Tube
1 per kit In All Kits
Shielding Braid & Mesh
As Required In All Kits
Black Jacketing Tube or Wraparound Sleeve***
1 per kit In All Kits
Sealed Grounding Kit
1 per kit G - Gmod Kit**
Cable Preparation Kit
1 per kit P - Pmod Kit**
Butt-Splice Connector
1 per kit Factory Quoted*
Installation Guide
1 per kit In All Kits

  • To download a PDF copy of the data sheet Click here.

    For a complete PDF of the current IPP catalog Click Here. If you would like the catalog in a printed version, please go to the "Catalog Request" page via the link at the top of the page.

The MVJ factory engineered kits are individually packaged single-core shielded cable joints. Everything is included to splice one single-core cable less the butt-splice connector and external grounding components. External grounding components can be included as a kit option. Connectors can be supplied in the kits; subject to factory quote.

  • MVJ 050T: Price List PL-617

5kv Selection Guide
Conductor Range
Catalog #



O.D. Max.
Length Max.
6 - 1/0 AWG
MVJ 051T
0.35 0.70 3.00 0.60 20.0
2/0 - 250 kcmil
MVJ 052T
0.55 0.90 4.25 0.90 21.0
350 - 750 kcmil
MVJ 053T
0.80 1.30 6.00 1.25 25.0
1000 - 1500 kcmil
MVJ 054T
1.30 1.60 8.00 1.60 26.0

All dimensions in inches unless shown otherwise

Ordering Information

1. Find the cable’s conductor size in the selection guide above and identify the kit catalog number. This kit will be all that is needed to splice one single-core cable, less the butt-splice connector and shield grounding hardware.Confirm the dimensions when at the extremes of the size range.
2. Add the mod kit letter designation as needed to change the base kit:

P - cable cleaning kit (Pmod)
G - sealed grounding kit (Gmod)
Example 1:
1/C, 1/0 AWG, 5kV cable spliced to the same exact cable with a solderless grounding kit (G mod) and a cable cleaning kit:

  Example 2:
1/C, 250 kcmil, 5kV cable spliced to the same exact cable with a solderless grounding kit:
MVJ 052T G

* CONNECTORS: To have connectors supplied in the kits, please refer to Section 5 in this catalog for connector selection information. The connectors must be ordered separately but can be packaged within the kits if detailed information is supplied.
** Supplied if specified.
*** WRAPAROUND SLEEVE with stainless steel channel– Contact IPP for more information.

QUESTIONS OR QUOTES EMAIL US AT: sales@ippcorp.com or CALL TOLL FREE 1-800-544-4626