CuW Alloy Custom Component
CuW alloy custom component is the catch-all listing for CuW parts that don't fit a standard form (arc contact, plate, finger, element, rod, cap).
Copper tungsten composites combine copper's conductivity with tungsten's resistance to arc erosion. In medium- and high-voltage vacuum interrupters and switchgear, this combination is what keeps contacts intact through tens of thousands of switching cycles. We supply CuW70, CuW75, and CuW80 in standard rod forms and as machined components : static arc contacts, moving arc contacts, shielding caps, conductive rods, and custom geometries to drawing. Production in our supply network uses powder metallurgy with copper infiltration. The 12 SKUs in this series cover the components most often replaced or specified for new MV switchgear designs. If you're sourcing for a vacuum circuit breaker line at 12 kV, 24 kV, or 40.5 kV, this is the right starting point.
CuW alloy custom component is the catch-all listing for CuW parts that don't fit a standard form (arc contact, plate, finger, element, rod, cap).
CuW conductive rod is the raw stock most often used as starting material for arc contacts, contact plates, and custom CuW components.
CuW conductor is a current-carrying element used where a section of an MV switchgear current path needs arc-resistant material, typically a short CuW segmen...
CuW contact element is a small braze-on CuW insert used where a contact assembly needs an arc-resistant tip but doesn't justify a full CuW contact body.
Contact fingers are the spring-loaded contact elements used in plug-in assemblies, the moving side of a draw-out VCB, the touch-and-break contact in disconn...
CuW contact plate is a flat or stepped CuW element used where a contact assembly needs more surface area than a round contact can provide.
In vacuum interrupter assemblies, guide pins control the moving contact's travel path and prevent rotation during opening and closing.
The moving arc contact is the half of the contact pair that travels when the vacuum interrupter opens or closes.
Inside a vacuum interrupter, the shielding cap sits around the contact gap and absorbs the metal vapor that comes off the arc.
CuW70 is the most commonly specified grade for medium-voltage vacuum interrupter contacts.
This product is sold as a paired set, one static arc contact plus one moving arc contact, matched in grade, dimensions, and lot.
The static arc contact is the fixed-side contact in a vacuum interrupter.
