Bussmann 170L4278 High-Speed F...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$476.20
Bussmann 170L4278 High-Speed Fuse-Link, 200A, 660V AC, Class aR, IEC Size 00

Bussmann 170L4278 High-Speed Fuse-Link, 200A, 660V AC, Class aR, IEC Size 00

(No reviews yet) Write a Review

Model: 170L4278

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

$476.20
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Bussmann 170L4278 High-Speed Fuse-Link, 200A, 660V AC, Class aR, IEC Size 00

The Bussmann 170L4278 is a high-speed fuse-link engineered for semiconductor protection in demanding power electronics applications. Rated 200 A at AC 660 V, this Size 00 fuse-link measures 30 x 67 x 100 mm and carries a Class aR (accompanied semiconductor protection) utilization category per IEC 60269-4. A single top-mounted fuse status indicator lets technicians confirm fuse condition at a glance, making the 170L4278 a dependable choice for coordinated semiconductor circuit protection.

Key Features

  • Size 00 Body: Compact 30 x 67 x 100 mm fuse-link dimensions for semiconductor protection assemblies and power electronics enclosures.
  • High-Speed Rating: 200 A at AC 660 V for fast-acting interruption in high-power semiconductor circuits.
  • Class aR Utilization Category: Accompanied semiconductor protection per IEC 60269-4 for coordinated protection alongside upstream or downstream devices.
  • Square Body Design: Slotted, offset bolted tags provide secure, low-resistance connections to busbars and terminal blocks.
  • Top Fuse Status Indicator: Single indicator gives a quick visual signal of fuse condition without disconnecting the circuit.
  • Voltage Type: AC-rated construction suited to alternating current power distribution up to 660 V.
  • Standard Packaging: Shipped in standard packaging for straightforward stocking and installation.

Certifications & Compliance

  • Rated per IEC 60269-4
  • CE Compliant

Technical Specifications

  • Application: semiconductor protection
  • Certifications: IEC 60269-4
  • Class: Class aR
  • Compliances: CE
  • Fuse Indicator: Top fuse status indicator
  • Fuse Shape: Square body, slotted offset bolted tags
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Product Height: 66 mm
  • Product Length Depth: 233 mm
  • Product Weight: 260.8333333 g
  • Product Width: 140 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Type: AC

Typical Applications

  • Semiconductor Protection Circuits
  • Power Electronics and Drive Systems
  • Industrial Motor Control Applications
  • High-Speed AC Circuit Protection
  • Coordinated Fuse Protection Schemes

Why Bussmann?

Bussmann fuse-links are built for the demanding job of protecting sensitive semiconductor devices, and the 170L4278 is rated and constructed to IEC 60269-4 with CE compliance for coordinated, code-compliant protection. Its Class aR utilization category, high-speed 200 A/660 V AC rating, and top-mounted status indicator give electrical professionals a reliable, easy-to-verify component for power electronics and industrial motor control installations.

Manufacturer Resources

Product Specs

Amperage Rating:
200 A
Application:
semiconductor protection
Certifications:
IEC 60269-4
Class:
Class aR
Compliances:
CE
Fuse Indicator:
Top fuse status indicator
Fuse Shape:
Square body, slotted offset bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Packaging Type:
Standard
Product Height:
66 mm
Product Length Depth:
233 mm
Product Weight:
260.8333333 g
Product Width:
140 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
660 V
Voltage Type:
AC
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170L4278 – Frequently Asked Questions

How fast can I get the Bussmann 170L4278 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 170L4278 come with a warranty?
Absolutely. The Bussmann 170L4278 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 170L4278?
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
Why buy the Bussmann 170L4278 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!