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Eaton Bussmann 550FMM High-Current Fuse

This is a fast-acting fuse with a voltage rating of 690 VAC and a current capacity of 550 amps. It features a bolt mount package with dimensions of 113.00mm x 38.00mm x 83.00mm, designed for secure bolted mounting in electrical systems.

Authorized Distributors
Source:DigiKey
Part No:550FMM
Stock:0
Inv Date:06-11-2026
Price: Unit price: $1224.75
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Part No:550FMM
Stock:0
Inv Date:06-12-2026
Price: Unit price: $1260.99
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Part No:550FMM
Stock:4
Inv Date:06-11-2026
Price: Unit price: $1344.74
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Part No:550FMM
Stock:0
Inv Date:06-11-2026
Price: Unit price: $953.38
Buy/RFQ:
Part No:550FMM
Stock:0
Inv Date:06-11-2026
Price: Unit price: $953.38
Buy/RFQ:

Eaton Bussmann 550FMM High-Current Fuse Specifications:

  • Voltage Rating: 690Vac/500Vde
  • Amps: 550A
  • IR: 200kA RMS Sym.
  • Dimensions: 113.00mm x 38.00mm x 83.00mm
  • Mounting: Bolt mounting package
  • Agency Standards: CE, UL Recognized, BS 88 Part 4, IEC 269 Part 4
  • Electrical Characteristics: Total clearing I*t at rated voltage: 16kA, power losses depend on load current, low arc voltage and low energy let-through
  • Features: Excellent cycling, DC performance, reliable arc quenching
  • Applications: Power distribution, industrial electrical systems

Buy the Buy Cooper Bussmann British BS 88 Fuse Part Number 550FMM Online

Purchase the Cooper Bussmann 550FMM high-current fuse online today. Designed for 690V and 550A applications, it features a bolt mount for secure installation and reliable circuit protection. Its robust construction ensures excellent performance in demanding industrial environments, with low arc voltage and energy let-through for enhanced safety. Ideal for power distribution systems, it meets CE, UL, and IEC standards, offering dependable protection with easy installation for electrical safety in your facility.

Get Cooper Bussmann 550FMM today—built for high-current protection with secure bolt mounting and reliable circuit safety.

Frequently Asked Questions

Where can I buy Eaton Bussmann 550FMM?

You can click on the BUY or RFQ button to purchase 550FMM from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part 550FMM?

You can download the 550FMM datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of 550FMM?

Eaton Bussmann

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