Bussmann 170M3489 Class aR Hig...
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Bussmann 170M3489 Class aR High-Speed Square Body Fuse, 63A

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Model: 170M3489

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

$1,177.96
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Bussmann 170M3489 Class aR High-Speed Square Body Fuse, 63A

The Bussmann 170M3489 is an Eaton Bussmann series Class aR high-speed square body fuse engineered for accompanied semiconductor protection. Rated 1300V (UL) and 1250V (IEC) with a 63A amperage rating and 100 kAIC interrupting capacity, this fuse combines a rugged square body design with flush end contacts for reliable connection in demanding power electronics circuits. As a UL Recognized, CE Marked component, it delivers the precision current-limiting performance required to protect sensitive semiconductor devices in high-fault-current AC applications.

Key Features

  • Amperage & Voltage Rating: Rated 63A at 1300V (UL) / 1250V (IEC) with a 100 kAIC interrupting rating for demanding AC power circuits.
  • Class aR High-Speed Design: Utilization Category aR (accompanied semiconductor protection) for coordinated protection of semiconductor devices such as SCRs and diodes.
  • Square Body Construction: Square body fuse shape with flush end contacts for secure, low-resistance connections.
  • I2t Characteristics: Pre-arc I2t of 215 and clearing I2t of 1300 at 1000V / 1750 at 1250V for precise coordination with semiconductor let-through ratings.
  • Compact Dimensions: Measures 170 mm wide x 96 mm long/deep x 50 mm high and weighs 375 g.
  • Watt Loss: Rated at 20W for efficient thermal performance in continuous-duty applications.
  • AC Voltage Type: Designed for AC circuits with a 1250V voltage rating.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 63 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t: 1300 at 1000 V, 1750 at 1250 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, flush end contacts
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 215
  • Product Height: 50 mm
  • Product Length/Depth: 96 mm
  • Product Weight: 375 g
  • Product Width: 170 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1250 V
  • Voltage Type: AC
  • Watt Losses: 20 W

Typical Applications

  • Semiconductor Protection Circuits
  • Power Electronics and Drives
  • Industrial Motor Control Systems
  • High-Fault-Current AC Power Distribution
  • Accompanied Semiconductor Protection (Class aR)

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M3489 reflects that standard with UL Recognized and CE Marked construction built for demanding industrial power electronics. Its Class aR high-speed design and precise I2t characteristics make it a dependable choice for engineers who need coordinated semiconductor protection they can rely on.

Manufacturer Resources

Product Specs

Amperage Rating:
63 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
1300 at 1000 V, 1750 at 1250 V
Compliances:
CE Marked
Fuse Indicator:
Other
Fuse Shape:
Square body, flush end contacts
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
100 kAIC
Mounting Method:
Flush
Packaging Type:
Standard
Pre Arc I2t:
215
Product Height:
50 mm
Product Length Depth:
96 mm
Product Weight:
375 g
Product Width:
170 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1250 V
Voltage Type:
AC
Watt Losses:
20 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3489 – Frequently Asked Questions

How fast can I get the Bussmann 170M3489 delivered?
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Does the Bussmann 170M3489 come with a warranty?
Absolutely. The Bussmann 170M3489 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 170M3489?
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