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Eaton Bussmann KTU4000 high-current industrial fuse

This is a high-capacity, fast-acting, current-limiting fuse rated for 600 VAC, designed to handle up to 4000 amps with a bolt mount configuration. It features thermally efficient design with silver-plated end bells and micro-peened terminals for optimal electrical conductivity, minimized heat generation, and high reliability. Suitable for protection of circuit breakers with lower interrupting ratings and non-inductive loads such as lighting and heating circuits. It provides rapid short-circuit response, high interrupting rating of 200,000 RMS Sym., and complies with UL and CSA standards, ensuring safety and performance in industrial applications.

Authorized Distributors
Source:DigiKey
Part No:KTU-4000
Stock:0
Inv Date:06-11-2026
Price: Unit price: $9173.38
Buy/RFQ:
Part No:KTU-4000
Stock:0
Inv Date:06-12-2026
Price: Unit price: $11570.97
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Part No:KTU-4000
Stock:0
Inv Date:06-11-2026
Price: Unit price: $10834.4
Buy/RFQ:
Part No:KTU-4000
Stock:0
Inv Date:06-11-2026
Price: Unit price: $8180.3
Buy/RFQ:
Part No:KTU-4000
Stock:0
Inv Date:06-11-2026
Price: Unit price: $8180.3
Buy/RFQ:

Eaton Bussmann KTU4000 high-current industrial fuse Specifications:

  • Ampere Rating: 601 to 6000 Amperes
  • Voltage Rating: 600 Volt AC
  • Interrupting Rating: 200,000 RMS Sym.
  • Configuration: Bolt Mount
  • Dimensions: 146.05 mm x 273.05 mm (approximate)
  • Material: Glass melamine tube, silver-plated end bells
  • Terminal Width: 20.06 mm
  • Terminal Thickness: 20.03 mm
  • Filler: High grade silica-sand for fast arcing quenching
  • Seal: O-ring for pressure and filler retention
  • Temperature Range: Suitable for industrial environments
  • Certifications: UL Listed, CSA Certified

Buy the Bussmann Series KTU Fast-Acting Fuse: KTU4000

Secure your electrical systems with the Bussmann KTU4000 fuse, rated for 600 volts and up to 4000 amps. Its bolt mount design ensures easy installation, while silver-plated terminals optimize electrical conductivity. This fast-acting fuse offers rapid short-circuit response, making it ideal for protecting circuit breakers and non-inductive loads like lighting and heating circuits. Certified by UL and CSA, it guarantees safety and durability, providing reliable overcurrent protection for industrial environments. Order online now and enhance your system’s safety and efficiency.

Buy Bussmann KTU4000 now and experience unmatched reliability and performance for high-current circuit protection in industrial applications.

Frequently Asked Questions

Where can I buy Eaton Bussmann KTU4000?

You can click on the BUY or RFQ button to purchase KTU4000 from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part KTU4000?

You can download the KTU4000 datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of KTU4000?

Eaton Bussmann

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