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Copper Core Power Bushing

VTE has developed an innovative and unique solution for passing current through a barrier. Our Copper Core Power Bushing brings new features, low cost and ease of use to your current passing projects.

Our Copper Core Power Bushings have been designed with these key components in mind:

  • High Energy Transfer
  • High Torque
  • High Anti-Rotation
  • Weatherproof Available
  • Low Product Cost
  • Low Assembled Cost
  • Also available in Metric M10
High Energy Transfer
The Copper Core is cold swaged into a hex shape, providing un-paralleled high energy transfer performance. The conductive materials are placed exactly where needed, reducing cost and improving performance.
High Torque
Significant amounts of fastener torque is required when attaching multiple 4/0 ga (120mm2) cables. Brass shaft devices just don't measure up. At the required torque, brass posts may fail. Our Copper Core Power Bushing uses a 3/8" (or 10mm) Nickel-plated steel shaft to provide high torque value.
High Anti-Rotation
First, the power bushing is molded in a unique shape, to fit into a punch hole provided by a Greenlee Punch (#60098). This ensures the bushing will not spin in its location. We then shaped the inner sleeve passage to a hex shape, when coupled with our hex shape core insert, provide 100% stability when fastening cables.
Weatherproof Available
The inner panel seal provides a secure fastening base for our. 258 Series Terminal Insulator. This insulator fits snugly around the panel seal, and when used with a 4/0 ga (120mm2)cable, provides the assembly with IP-65 rating weatherproofing.
Low Product Cost
VTE has specifically designed a unique mold and assembly procedure for the Copper Core Power Bushing. The entire process of molding and assembling is performed in one operation, at one station. This greatly reduces our labor cost, which greatly reduces the end cost to the consumer.
Low Assembled Cost
Unique and innovative, our Copper Core Power Bushing incorporates a large PVC fastening nut. This nut fastens the bushing into place, allowing for quick installation. The installion hardware is minimized, further improving the efficiency of the install process.

  • For panel thickness up to 13/32"
  • Easy to assemble and install
  • Very low cost
  • Copper Core SAE Max Amperage:
    • Peak: 550amp @ 12vdc (6.6kw)
    • Duty Cycle: 80%
  • Copper Core Metric Max Amperage:
    • Peak: 450amp @ 12vdc (5.4kw)
    • Duty Cycle: 80%
  • Max Voltage: 48 vdc
  • Availabe in Red & Black
  • Bushing Material : Glass-Filled Nylon
  • Post Material : Nickel Plated Mild Steel
  • Fastener (nut) Material : Stainless Steel
  • Use second panel nut (359N) for high dynamic loads Panel thickness up to 3/16"

Use Terminal Insulators to comply with industry standards

258 Series Terminal Insulator 258N Series Insulator
Multiple 4/0 ga (120mm2) cable
Meets IP65 weatherproof rating
Meets ISO, ABYC & USCG Safety Requirements for energized terminals
956 Series Terminal Insulator 956N Series Dual Insulator
Dual 3/0 ga (81mm2) cable
Meets ISO, ABYC & USCG Safety Requirements for energized terminals
956 Series Terminal Insulator 795 Multiple Cable Insulator
Multiple 3/0 ga (81mm2) cables
Meets ISO, ABYC & USCG Safety Requirements for energized terminals

Click part number to see detailed drawing

Copper Core Power Bushing
3/8" Post, 550 amp Max Normal Use CCB376N0N02 Red on Black
CCB376N0NR02 All Red
CCB376N0N14 Black
Weather Proof CCB376N0N02W Red on Black
CCB376N0NR02W All Red
CCB376N0N14W Black
10mm Post, 450 amp Max Normal Use CCB376M0N02 Red on Black
CCB376M0NR02 All Red
CCB376M0N14 Black
Weather Proof CCB376M0N02W Red on Black
CCB376M0NR02W All Red
CCB376M0N14W Black

1/2" and 12mm Copper Core Bushing
1/2" Post 550 Amp Max Normal Use CCB506N02 Red
CCB506N14 Black
Weather Proof CCB506N02W Red
CCB506N14W Black
12mm Post 550 Amp Max
( coming soon )
Normal Use CCB126N02 Red
CCB126N14 Black
Weather Proof CCB126N02W Red
CCB126N14W Black

USA Factory / Headquarters European Headquarters Local Distributor (US)
VTE Inc.
5437 Robinson Rd
Pellston Mi 49769
United States
PH: 1.231.539.8000
FX: 1.231.344.5914
VTE Europe BV
Trapgans 8 J
Ankeveen 1244RL
PH: 035-6565560
VTE Warehouse
5437 Robinson Rd
Pellston MI 49769
United States