Bussmann 170M4410 Eaton Series...
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Bussmann 170M4410 Eaton Series High-Speed Square Body Fuse, Class aR, 315A

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Model: 170M4410

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

$1,050.98
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Bussmann 170M4410 Eaton Series High-Speed Square Body Fuse, Class aR, 315A

The Bussmann 170M4410 is an Eaton series high-speed square body fuse engineered for semiconductor protection in demanding power electronics applications. Rated 700V (UL) / 690V (IEC) and 315A with a 200 kAIC interrupting rating, this Class aR fuse features flush end contacts and a top-mounted fuse status indicator for quick visual verification. Built to the aR utilization category for accompanied semiconductor protection, it delivers fast, reliable clearing performance in high-voltage industrial circuits.

Key Features

  • Voltage Rating: 700V (UL) / 690V (IEC) for high-voltage industrial circuits.
  • Amperage Rating: 315A suited to semiconductor protection applications.
  • Interrupting Rating: 200 kAIC for reliable fault clearing in high fault-current systems.
  • Fuse Shape: Square body with flush end contacts for compact mounting.
  • Fuse Status Indicator: Top-mounted indicator provides quick visual confirmation of fuse condition.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated device protection.
  • Let-Through Energy: Clearing I2t of 42000 at 660V and Pre-Arc I2t of 6200 for precise coordination.
  • Watt Losses: 58W rated power loss for thermal system design.

Certifications & Compliance

  • IEC Rated
  • CE Marked

Technical Specifications

  • Amperage Rating: 315 A
  • Application: semiconductor protection
  • Certifications: IEC Rated
  • Clearing I2t: 42000 at 660 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, flush end contacts
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 6200
  • Product Height: 63 mm
  • Product Length Depth: 107 mm
  • Product Weight: 380.6666667 g
  • Product Width: 53 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 58 W

Typical Applications

  • Semiconductor Protection
  • Power Electronics and Drive Systems
  • Industrial Motor Control Circuits
  • High-Speed Rectifier and Converter Protection
  • Coordinated Overcurrent Protection Schemes

Why Bussmann?

Bussmann by Eaton engineers this high-speed square body fuse with a 200 kAIC interrupting rating, precise Clearing and Pre-Arc I2t characteristics, and IEC-rated, CE-marked construction for dependable performance. The Class aR utilization category and top fuse status indicator support fast troubleshooting and coordinated semiconductor protection, making it a trusted choice for professional industrial electrical work.

Manufacturer Resources

Product Specs

Amperage Rating:
315 A
Application:
semiconductor protection
Certifications:
IEC Rated
Class:
Class aR
Clearing I2t:
42000 at 660 V
Compliances:
CE Marked
Fuse Indicator:
Top fuse status indicator
Fuse Shape:
Square body, flush end contacts
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Mounting Method:
Flush
Packaging Type:
Standard
Pre Arc I2t:
6200
Product Height:
63 mm
Product Length Depth:
107 mm
Product Weight:
380.6666667 g
Product Width:
53 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
58 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M4410 – Frequently Asked Questions

1) Will a Bussmann 170M4410 fuse protect my drive's IGBTs on its own, or do I still need a branch circuit breaker?
The 170M4410 is a Class aR fuse, which is the accompanied semiconductor protection category. It clears short circuits fast enough to save the semiconductors, but it is not intended to handle overload protection by itself. You still need a separate overload device, typically the drive's electronic overload or an upstream breaker, working with it. If you want a fuse that covers both overload and short circuit ranges, you are looking for a gR/gS type instead.
2) Can I use the Bussmann 170M4410 on a 690V system, and what is it rated in a UL panel?
690V AC is the IEC rating on the 170M4410, and in UL terms it is rated 700V. It is an AC-rated device, so do not apply it on a DC bus without the manufacturer's DC curves. Fault duty is covered to 200 kAIC, which handles most stiff industrial services feeding converters and drives.
3) What physical space do I need in the panel for a 170M4410 square body fuse?
Body size on the 170M4410 is 107 mm by 63 mm by 53 mm, and it weighs about 381 g. It is a square body design with flush end contacts, so it bolts flat against the mounting pads rather than clipping into a holder. Note it does not have insulated metal gripping lugs, so allow for bare live contact faces when you lay out clearances and barriers.
4) What I2t numbers do I use to coordinate the 170M4410 with my rectifier diodes?
Use 6200 for pre-arc I2t and 42000 clearing I2t at 660 V. The diode or thyristor has to withstand more I2t than the fuse lets through, so compare the 42000 clearing figure against the device datasheet rating at the same time base. Pre-arc value is what you use when coordinating this fuse against another fuse in series.
5) Can I swap a standard Class J or RK5 fuse in place of the 170M4410?
No. The 170M4410 is a high-speed semiconductor fuse, and a Class J or RK5 branch circuit fuse clears far too slowly to keep diodes or IGBTs alive during a fault. The body is also a bolt-in square body with flush end contacts, not a ferrule or blade, so it will not physically drop into a standard fuse block either. Replace it with the same 170M part number.
6) How much heat does a 315A Bussmann 170M4410 fuse add to an enclosure?
Rated power loss is 58 W per fuse at full load. On a three-phase set that is roughly 174 W of heat inside the cabinet before you count the drive itself, which matters when you size ventilation or an enclosure air conditioner. Derate the fuse if the internal ambient runs high.
7) How do I tell if a Bussmann 170M4410 has blown without pulling it out?
There's a fuse status indicator on the top face of the 170M4410. A visual check through the panel window tells you which leg opened, so you are not megging or ringing out three fuses to find the failed one. Some of these indicators can also drive a microswitch for remote signalling, so check the body marking if you need contact output.
8) Is the Bussmann 170M4410 acceptable for export machinery going to Europe?
It is CE marked and built to IEC ratings, so it suits machinery panels bound for the EU. The dual 700V UL / 690V IEC rating is why it turns up in equipment built in one market and shipped to the other.
How fast can I get the Bussmann 170M4410 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 170M4410 come with a warranty?
Absolutely. The Bussmann 170M4410 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 170M4410?
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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