We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Tweco

Tweco 358-9205-1250 500 A welding ground clamp

SKU CH-QCM2-VYCY0 MPN 358-9205-1250

Ground clamp delivers 500 A welding current with copper body, brass connection and insulated spring for flat plates

  • MaterialHAWA
  • TypeArc Flash Protection
  • Secure 500 A grounding for heavy-duty welding
  • Copper body and brass connection deliver low-resistance contact
  • Insulated spring prevents accidental arcing during setup
  • 2 in jaw opening fits thick flat plates easily
  • Steel handle and screw withstand repeated job-site use

Tweco 500 A ground clamp

The Tweco 358-9205-1250 is a welding ground clamp rated for 500 A maximum current. It suits welders who need a reliable return path on flat plates. The copper clamp body and brass connection material conduct high current efficiently. An insulated spring on the steel handle helps protect the operator during arc flash events.

500 A capacity with 2 in jaw opening

The clamp accepts workpieces up to 2 in thick thanks to its maximum jaw opening and 1 3/4 in throat depth. It handles heavy-duty welding jobs within the 500 A rating without overheating. Beyond that current level the connection may become a bottleneck. The ball-point screw cable connection secures leads firmly for consistent conductivity.

Arc flash protection and insulated handling

Arc flash protection is built into the design through the insulated spring and HAWA material. The steel handle stays cooler during extended runs while the spring reduces heat transfer to the operator's hand. Copper and brass components minimise resistive heating at the contact faces. Normal use produces minimal thermal stress on the clamp itself.

Highlights

  • Secure 500 A grounding for heavy-duty welding
  • Copper body and brass connection deliver low-resistance contact
  • Insulated spring prevents accidental arcing during setup
  • 2 in jaw opening fits thick flat plates easily
  • Steel handle and screw withstand repeated job-site use

Specifications

BrandTWECO
Model358-9205-1250
MaterialHAWA
TypeArc Flash Protection

Questions about this item

Will the 500 A ground clamp work with my older welder that uses a ball-point screw cable connection?

Yes, the clamp uses a ball-point screw cable connection, so it will attach to any compatible cable with the same fitting.

How can I verify the clamp is making proper contact after installation?

Check that the jaws close fully on the flat plate, the insulated spring holds firm pressure, and the brass connection seats tightly against the copper body.

Does the package include welding cable or only the clamp assembly?

Only the ground clamp is supplied; welding cable and any lugs or connectors must be purchased separately.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.