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Fuses | Wholesale & OEM/ODM

Willmall fuses protect circuits by clearing fault current before it damages equipment, giving predictable protection across many applications.

  • Overcurrent protection that clears the circuit on fault
  • Defined current and breaking ratings for the circuit
  • Time-current characteristics matched to load duty
  • Simple replacement for fast fault recovery
  • Available for AC, DC, and motor protection roles
What does a fuse do?

It interrupts a circuit when fault current exceeds its rating, protecting the circuit and equipment from excessive current.

How is a fuse different from a breaker?

A fuse clears once and is replaced, while a breaker can be reset after tripping and is often used where frequent operation is expected.

How is a fuse sized?

The rating is chosen for the continuous load current, the fault level of the circuit, and coordination with upstream protection.

Where are fuses used?

They are used in distribution boards, equipment protection, motor circuits, and DC and PV systems.

Why does the time-current characteristic matter?

It defines how quickly the fuse clears at different currents, matching protection to loads that tolerate brief surges.

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