Bussmann 170M7078 Class aR Sem...
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Bussmann 170M7078 Class aR Semiconductor Protection Fuse, 1000A 690V

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Model: 170M7078

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

$5,704.34
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Bussmann 170M7078 Class aR Semiconductor Protection Fuse, 1000A 690V

The Bussmann 170M7078 is a Class aR semiconductor protection fuse rated 1000 A at 690 V AC, engineered to protect power semiconductor devices in demanding industrial power circuits. Built for accompanied semiconductor protection applications, this fuse delivers a 200 kAIC interrupt rating and is UL Recognized and CE Marked for use in professional electrical and power electronics systems.

Key Features

  • Amperage Rating: 1000 A rating suited for high-current semiconductor protection circuits.
  • Voltage Rating: 690 V AC rating for demanding industrial power distribution systems.
  • Utilization Category: Class aR (accompanied semiconductor protection) designed to protect power semiconductor devices when coordinated with upstream overcurrent protection.
  • Interrupt Rating: 200 kAIC interrupt rating for reliable performance under high fault-current conditions.
  • Let-Through Energy: Pre-Arc I2t of 76,000 and Clearing I2t of 505,000 at 660 V for precise protection coordination in semiconductor circuits.
  • Mounting Method: Flush mounting for compact, space-saving panel and enclosure installation.
  • Watt Losses: 175 W rated power dissipation.
  • Temperature Rating: Rated for operation above 60°C.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 1000 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Class: Class aR
  • Clearing I2t: 505000 at 660 V
  • Compliances: CE Marked
  • Fuse Indicator: Other
  • Insulated Metal Gripping Lugs (IMGL): No
  • Interrupt Rating: 200 kAIC
  • Mounting Method: Flush
  • Packaging Type: Standard
  • Pre Arc I2t: 76000
  • Product Height: 116 mm
  • Product Length Depth: 202 mm
  • Product Weight: 1384.5 g
  • Product Width: 140 mm
  • Temperature Rating: >60°C
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 175 W

Typical Applications

  • Semiconductor Protection Circuits
  • Power Electronics and Rectifier Systems
  • Industrial Motor Drives and Converters
  • High-Power Switching and Conversion Equipment
  • Panelboard and Switchgear Overcurrent Protection

Why Bussmann?

Bussmann engineers its Class aR fuses with precise Pre-Arc and Clearing I2t characteristics, a 200 kAIC interrupt rating, and UL Recognized, CE Marked construction to deliver dependable, code-compliant semiconductor protection for professional electrical and power electronics installations.

Manufacturer Resources

Product Specs

Amperage Rating:
1000 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
505000 at 660 V
Compliances:
CE Marked
Fuse Indicator:
Other
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Mounting Method:
Flush
Packaging Type:
Standard
Pre Arc I2t:
76000
Product Height:
116 mm
Product Length Depth:
202 mm
Product Weight:
1384.5 g
Product Width:
140 mm
Temperature Rating:
>60°C
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
175 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M7078 – Frequently Asked Questions

How fast can I get the Bussmann 170M7078 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 170M7078 come with a warranty?
Absolutely. The Bussmann 170M7078 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 170M7078?
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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