Bussmann 170M8539 High-Speed F...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,235.69
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Bussmann 170M8539 High-Speed Fuse-Link, 800A, Size 3, aR

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Model: 170M8539

In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,235.69
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Bussmann 170M8539 High-Speed Fuse-Link, 800A, Size 3, aR

The Bussmann 170M8539 is a high-speed fuse-link engineered for protection of power rectifiers and other power semiconductor devices, rated 800A at AC 1000V. Built to Size 3 dimensions of 76 x 92 x 159 mm, this aR class fuse-link is designed to IEC standards and is UL Recognized, making it well suited to demanding industrial power conversion applications. A single top-mounted fuse status indicator gives at-a-glance confirmation of fuse condition, simplifying maintenance and troubleshooting in critical protection circuits.

Key Features

  • Size 3 Dimensions: 76 x 92 x 159 mm body sized for standard Size 3 fuse mounting hardware and clips.
  • High Amperage Rating: 800A continuous current rating at AC 1000V for demanding power circuit protection.
  • aR Utilization Category: Classified aR (accompanied semiconductor protection) for coordinated protection of power semiconductor devices such as rectifiers.
  • High Interrupt Rating: 125 kAIC interrupt rating for reliable clearing performance under high fault-current conditions.
  • Fast-Clearing Performance: Pre-arc I2t of 170000 and clearing I2t of 1050000 at 1000V support fast, current-limiting operation that protects downstream semiconductors.
  • Top Fuse Status Indicator: Single top-mounted indicator provides quick visual verification of fuse condition.
  • Square Body Construction: Square body with center bolted tags for secure, low-resistance electrical connections.
  • Low Watt Loss: Rated at 135W watt loss for efficient in-service operation.

Certifications & Compliance

  • UL Recognized
  • CE Marked
  • Rated and tested to IEC standards

Technical Specifications

  • Application: Protection of power rectifiers
  • Certifications: UL Recognized
  • Class: Class aR
  • Clearing I2t: 1050000 at 1000 V
  • Compliances: CE Marked
  • Fuse Indicator: Top fuse status indicator
  • Fuse Shape: Square body, center bolted tags
  • Interrupt Rating: 125 kAIC
  • Packaging Type: Standard
  • Pre Arc I2t: 170000
  • Product Height: 74 mm
  • Product Length Depth: 90 mm
  • Product Weight: 1.6456 lb
  • Product Width: 160 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Watt Losses: 135 W

Typical Applications

  • Protection of Power Rectifiers
  • Semiconductor Device Protection
  • Industrial Power Conversion Equipment
  • High-Speed Circuit Protection in AC 1000V Systems
  • Panelboard and Switchgear Fuse Protection

Why Bussmann?

Bussmann fuse-links are built for dependable performance in demanding industrial electrical systems. The 170M8539's UL Recognized and CE Marked construction, combined with its aR utilization category and 125 kAIC interrupt rating, reflects the code-compliant, high-integrity protection professionals expect from Bussmann for power rectifier and semiconductor protection applications.

Manufacturer Resources

Product Specs

Amperage Rating:
800 A
Application:
Protection of power rectifiers
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
1050000 at 1000 V
Compliances:
CE Marked
Fuse Indicator:
Top fuse status indicator
Fuse Shape:
Square body, center bolted tags
Interrupt Rating:
125 kAIC
Packaging Type:
Standard
Pre Arc I2t:
170000
Product Height:
74 mm
Product Length Depth:
90 mm
Product Weight:
1.6456 lb
Product Width:
160 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1000 V
Watt Losses:
135 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M8539 – Frequently Asked Questions

How fast can I get the Bussmann 170M8539 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann 170M8539 come with a warranty?
Absolutely. The Bussmann 170M8539 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann 170M8539?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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