Bussmann 170M7544 Class aR Sem...
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$10,374.41
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Bussmann 170M7544 Class aR Semiconductor Fuse, 1800A 1250V

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Model: 170M7544

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

$10,374.41
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Bussmann 170M7544 Class aR Semiconductor Fuse, 1800A 1250V

The Bussmann 170M7544 is a Class aR fuse rated 1800A at 1250V, engineered for semiconductor protection in demanding power electronics applications. Built to the aR utilization category (accompanied semiconductor protection), it delivers a 125 kAIC interrupt rating with DIN 43-620 blade end x DIN 43-620 blade end connections for direct mounting into compatible fuse holders. IEC rated and CE marked, this fuse is engineered for reliable, code-compliant performance protecting sensitive semiconductor devices from overcurrent conditions.

Key Features

  • Amperage & Voltage: Rated 1800A at 1250V for high-current semiconductor circuit protection.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated fault clearing.
  • Connection Type: DIN 43-620 blade end x DIN 43-620 blade end for standardized fuse holder mounting.
  • Interrupt Rating: 125 kAIC for dependable performance under high fault-current conditions.
  • I²t Characteristics: Pre-arc I²t of 1,450,000 and clearing I²t of 8,600,000 at 1000V for precise coordination with protected semiconductor devices.
  • Voltage Type: AC-rated for alternating current power distribution systems.
  • Watt Losses: 270W rated power dissipation.

Certifications & Compliance

  • IEC Rated
  • CE Marked

Technical Specifications

  • Amperage Rating: 2000 A
  • Application: semiconductor protection
  • Certifications: IEC Rated
  • Class: Class aR
  • Clearing I²t: 8600000 at 1000 V
  • Compliances: CE Marked
  • Connection: Din 43-620 blade end x Din 43-620 blade end
  • Fuse Indicator: Other
  • Insulated Metal Gripping Lugs (IMGL): No
  • Interrupt Rating: 125 kAIC
  • Packaging Type: Standard
  • Pre Arc I²t: 1450000
  • Product Height: 53.01 mm
  • Product Length Depth: 41.798 mm
  • Product Weight: 746.4309952 g
  • Product Width: 137.998 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1000 V
  • Voltage Type: AC
  • Watt Losses: 270 W

Typical Applications

  • Semiconductor Device Protection
  • Power Electronics and Rectifier Circuits
  • Industrial Power Conversion Equipment
  • High-Speed Fault Current Interruption

Why Bussmann?

Bussmann engineers its 170M series fuses to precise pre-arc and clearing I²t characteristics, giving system designers the data needed to coordinate reliable semiconductor protection. With IEC rating, CE marking, and a 125 kAIC interrupt rating, the 170M7544 is built for consistent, code-compliant performance in demanding industrial power electronics environments.

Manufacturer Resources

Product Specs

Amperage Rating:
2000 A
Application:
semiconductor protection
Certifications:
IEC Rated
Class:
Class aR
Clearing I2t:
8600000 at 1000 V
Compliances:
CE Marked
Connection:
Din 43-620 blade end x Din 43-620 blade end
Fuse Indicator:
Other
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
125 kAIC
Packaging Type:
Standard
Pre Arc I2t:
1450000
Product Height:
53.01 mm
Product Length Depth:
41.798 mm
Product Weight:
746.4309952 g
Product Width:
137.998 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1000 V
Voltage Type:
AC
Watt Losses:
270 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M7544 – Frequently Asked Questions

How fast can I get the Bussmann 170M7544 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 170M7544 come with a warranty?
Absolutely. The Bussmann 170M7544 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 170M7544?
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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