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Eaton Bussmann FWX400A High Current Fuse

The FWX fuse is a high-current, fast-acting fuse rated for 250 VAC and 250 VDC, capable of handling 400 Amps. It features a robust bolt mount package measuring 38.10mm by 97.54mm, ensuring secure attachment in electronic circuits. Designed for precise protection, it has a rated interrupting capacity of 200 kA RMS and is UL recognized for safety and reliability. This fuse is suitable for high-power applications in industrial and electronic equipment, providing quick response during overloads or faults to safeguard sensitive components. Its compact design and high current capacity make it an essential safety component.

Authorized Distributors
Source:DigiKey
Part No:FWX-400A
Stock:0
Inv Date:06-11-2026
Price: Unit price: $383.49
Buy/RFQ:
Part No:FWX-400A
Stock:0
Inv Date:06-12-2026
Price: Unit price: $351.62
Buy/RFQ:
Part No:FWX-400A
Stock:0
Inv Date:06-11-2026
Price: Unit price: $402.96
Buy/RFQ:
Part No:FWX-400A
Stock:0
Inv Date:06-11-2026
Price: Unit price: $273.44
Buy/RFQ:
Part No:FWX-400A
Stock:0
Inv Date:06-11-2026
Price: Unit price: $273.44
Buy/RFQ:

Eaton Bussmann FWX400A High Current Fuse Specifications:

  • Rated Voltage: 250 VAC and 250 VDC
  • Current Capacity: 400 Amps
  • Interrupting Capacity: 200 kA RMS
  • Package Dimensions: 38.10mm by 97.54mm
  • Mounting Type: Bolt mount
  • UL Recognition: YES
  • Application: Circuit protection in industrial and electronic equipment
  • Design: Fast-acting fuse for rapid overload response
  • Material: Heat-resistant components suitable for high currents

Buy the Buy Bussmann FWX400A Part Number FWX400A Online

Secure your electronic systems with the Bussmann FWX400A high-current fuse. Rated at 250 VAC and 250 VDC with 400 Amps capacity, it offers rapid overload protection. Its sturdy bolt mount ensures reliable installation across industrial and electronic applications. Recognized by UL for safety, this fuse provides high interrupting capacity of 200 kA RMS, ideal for safeguarding sensitive components in demanding electrical environments. Trust Bussmann for durable, high-performance circuit protection that maintains optimal safety and reliability.

Get Bussmann FWX400A today—built for precision and long-lasting durability in high-current electronic circuits.

Frequently Asked Questions

Where can I buy Eaton Bussmann FWX400A?

You can click on the BUY or RFQ button to purchase FWX400A from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part FWX400A?

You can download the FWX400A datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of FWX400A?

Eaton Bussmann

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