Bussmann 170M3366 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$927.66
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Bussmann 170M3366 Eaton Series High-Speed Square Body Fuse, 250A, Class aR

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Model: 170M3366

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

$927.66
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Bussmann 170M3366 Eaton Series High-Speed Square Body Fuse, 250A, Class aR

The Bussmann 170M3366 is an Eaton series high-speed square body fuse engineered for semiconductor protection in demanding industrial power circuits. Rated 1250V (IEC) / 1300V (UL) with a 250A amperage rating and a 200 kAIC interrupting rating, this Class aR fuse is built for accompanied semiconductor protection applications where fast clearing and precise let-through energy are critical. The square body design with slotted center bolted tags supports high-current terminal connections, and the fuse carries UL Recognized and CE Marked compliance for use in professional electrical systems.

Key Features

  • Amperage Rating: 250A rated for high-speed semiconductor circuit protection.
  • Voltage Rating: 1250V (IEC) / 1300V (UL), with a 690V AC voltage rating listed for the fuse element, supporting a wide range of system voltages.
  • Interrupting Capacity: 200 kAIC interrupting rating for reliable performance under high fault-current conditions.
  • Fuse Shape: Square body construction with slotted center bolted tags for secure, high-power terminal connections.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of semiconductor devices.
  • Clearing Characteristics: Clearing I2t of 28500 at 660V and Pre-Arc I2t of 4200 for precise, predictable let-through energy.
  • Watt Losses: 40W rated power loss for efficient operation in continuous-duty applications.
  • Application: Purpose-built for semiconductor protection in power electronics and industrial drive systems.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 250 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t : 28500 at 660 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, slotted center bolted tags
  • Insulated Metal Gripping Lugs Imgl : No
  • Packaging Type: Standard
  • Pre Arc I2t : 4200
  • Product Height: 80 mm
  • Product Length Depth: 168 mm
  • Product Weight: 704.6666667 g
  • Product Width: 124 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 40 W

Typical Applications

  • Semiconductor Protection Circuits
  • Power Electronics and Variable Frequency Drives
  • Industrial Motor Control Systems
  • High-Speed Fault Current Protection
  • Switchgear and Panelboard Fuse Protection

Why Bussmann?

Bussmann by Eaton is a recognized leader in circuit protection, and the 170M3366 reflects that standard with a 200 kAIC interrupting rating, Class aR utilization for accompanied semiconductor protection, and UL Recognized, CE Marked compliance. Its square body, bolted-tag construction is designed for demanding industrial power electronics applications where reliable, code-compliant protection is essential.

Manufacturer Resources

Product Specs

Amperage Rating:
250 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
28500 at 660 V
Compliances:
CE Marked
Fuse Indicator:
Other
Fuse Shape:
Square body, slotted center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
4200
Product Height:
80 mm
Product Length Depth:
168 mm
Product Weight:
704.6666667 g
Product Width:
124 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
40 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3366 – Frequently Asked Questions

How fast can I get the Bussmann 170M3366 delivered?
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Does the Bussmann 170M3366 come with a warranty?
Absolutely. The Bussmann 170M3366 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 170M3366?
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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