Bussmann 160NHM2B NHM2 NH2 LV ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$564.06
Bussmann 160NHM2B NHM2 NH2 LV Fuse-Link, aM, Dual Indicator, 690V AC

Bussmann 160NHM2B NHM2 NH2 LV Fuse-Link, aM, Dual Indicator, 690V AC

(No reviews yet) Write a Review

Model: 160NHM2B-690

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

$564.06
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 NHM2 NH2 LV Fuse-Link, aM, Dual Indicator, 690V AC

The Bussmann NHM2 NH2 LV fuse-link delivers dependable overcurrent protection for AC low-voltage industrial systems rated up to 690V, engineered to IEC 60269 with a Class aM utilization category for switchgear protection. This NH2 construction fuse-link features live gripping lugs for secure fuse-holder contact and a dual indicator for fast blown-fuse status checks, backed by a 120 kA breaking capacity (120 kAIC interrupt rating). This listing covers the Bussmann NHM2 NH2 fuse-link family, available in amp ratings from 160A to 355A (160A, 200A, 315A, 355A), with the shared voltage, class, and construction specifications below common to the full range.

Key Features

  • Compact Body Dimensions: 54 mm width, 71 mm height, and 150 mm length/depth for standard NH2 fuse-holder compatibility.
  • NH2 Construction: Industry-standard NH2 fuse-link body built to IEC 60269 for dependable low-voltage circuit protection.
  • Live Gripping Lugs: Secure, low-resistance contact points for a reliable connection in fuse-holder assemblies.
  • Dual Indicator: Visual blown-fuse indication built into the fuse-link for faster troubleshooting.
  • Class aM Utilization: Rated under the aM utilization category for switchgear protection duty.
  • AC 690V Rating: Suited for AC low-voltage systems operating at up to 690V.
  • 120 kA Breaking Capacity: Backed by a 120 kAIC interrupt rating for high fault-current industrial applications.
  • Frequency Range: Rated for AC frequencies from 45 Hz to 62 Hz.
  • Amp Rating Range: Available in 160A, 200A, 315A, and 355A ratings to match circuit load requirements.

Certifications & Compliance

  • IEC 60269 Compliant

Technical Specifications

  • Class: Class aM.
  • Voltage Type: AC.
  • Product Width: 54 mm.
  • Frequency Rating Min: 45 Hz.
  • Utilization Category: aM (switchgear protection).
  • Breaking Capacity: 120 kA.
  • Rated Switching Capacity: 120 kA.
  • Interrupt Rating: 120 kAIC.
  • Product Height: 71 mm.
  • Application: Industrial.
  • Insulated Metal Gripping Lugs (IMGL): No.
  • Construction: NH2.
  • Product Length/Depth: 150 mm.
  • Certifications: IEC 60269.
  • Frequency Rating Max: 62 Hz.
  • Voltage Rating: 690V.

Typical Applications

  • Industrial Electrical Installations
  • Low Voltage (LV) Power Distribution Systems
  • Switchgear Protection (aM Utilization Category)
  • NH2 Fuse-Holder and Fuse-Switch Assemblies
  • Motor and Feeder Circuit Overcurrent Protection

Why Bussmann?

Bussmann NHM2 fuse-links are built to IEC 60269 with a 120 kA breaking capacity (120 kAIC), live gripping lugs, and a dual indicator for dependable, code-compliant performance in industrial low-voltage systems. The Class aM rating and AC 690V rating make this family a solid choice for switchgear and motor circuit protection across its 160A-355A range.

Manufacturer Resources

Product Specs

Product Group:
Fuses
Class:
Class aM
Voltage Type:
AC
Product Width:
54 mm
Frequency Rating Min:
45 Hz
Utilization Category:
aM (switchgear protection)
Breaking Capacity:
120 kA
Rated Switching Capacity:
120 kA
Product Type:
Fuse-Link
Interrupt Rating:
120 kAIC
Product Height:
71 mm
Product Details:
fuse
Application:
industrial
Insulated Metal Gripping Lugs Imgl:
No
Product Subgroup:
Other Fuses
Construction:
NH2
Product Length Depth:
150 mm
Department:
Electrical
Certifications:
IEC 60269
Frequency Rating Max:
62 Hz
Voltage Rating:
690V AC
Standards:
IEC 60269
Connection Type:
Live Gripping Lugs

Bussmann 160NHM2B-690 – Frequently Asked Questions

1) Will the Bussmann NHM2 fuse-link fit a standard NH2 fuse holder or fuse switch?
Yes. The NHM2 is built in NH2 size to IEC 60269, with a body measuring 54 mm wide, 71 mm high and 150 mm long, so it drops into standard NH2 fuse bases, fuse switches and switch-disconnectors. It uses live gripping lugs for the blade contact, not insulated metal gripping lugs, so if your assembly requires IMGL for finger-safe handling this is not the version you want.
2) What does the aM class mean on a Bussmann NHM2 fuse-link, and should I use it for motor circuits?
Class aM is a partial-range back-up fuse for switchgear and motor duty. It rides through motor inrush and only clears at higher fault currents, so it protects the circuit and the switchgear against short circuits, not against small sustained overloads. That means an aM fuse-link must be paired with an overload relay or motor protector to cover thermal overload. If you want a fuse that handles both overload and short circuit on its own, you want a gG/gL general-purpose fuse-link instead.
3) Can I use this 690V NHM2 fuse-link on a 480V or 400V system?
Yes. The NHM2 is rated 690V AC, and a fuse-link may be applied at or below its rated voltage, so 400V and 480V AC distribution is within rating. It is an AC-only rating, so do not apply it on a DC circuit. Frequency range is 45 Hz to 62 Hz, which covers both 50 Hz and 60 Hz supplies.
4) Is the Bussmann NHM2 a UL Class J or Class RK fuse I can use on a US NEC job?
No. The NHM2 is an IEC 60269 fuse-link in NH2 size with a Class aM utilization category, which is the European/IEC system. It is not a UL Class J, RK1 or RK5 fuse and it will not fit US Class J or R fuse blocks. For NEC-governed North American switchgear, specify a UL-listed Bussmann class fuse in the correct block; use the NHM2 where the equipment is built around IEC NH fuse-holders.
5) Is 120 kA breaking capacity enough for my industrial switchboard fault level?
The NHM2 carries a 120 kA breaking capacity, listed as a 120 kAIC interrupt rating, at its 690V AC rating. As long as the available fault current at the point of installation is at or below 120 kA, the fuse-link is adequately rated. That covers most industrial LV distribution and switchgear positions fed from large transformers.
6) What amp ratings does the Bussmann NHM2B fuse-link come in?
Four ratings: 160A (160NHM2B-690), 200A (200NHM2B-690), 315A (315NHM2B-690) and 355A (355NHM2B-690). All four share the same NH2 body, 690V AC rating, Class aM and 120 kA breaking capacity, so you can standardize a panel on the NH2 size and just change the amp rating per feeder.
7) How do I tell if an NHM2 fuse-link has blown without pulling it out?
The NHM2 has a dual indicator built into the fuse-link, so blown status is visible from the front of the carrier. Handy on a fuse switch where pulling each link to test continuity means an outage on that feeder.
How fast can I get the Bussmann 160NHM2B-690 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 160NHM2B-690 come with a warranty?
Absolutely. The Bussmann 160NHM2B-690 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 160NHM2B-690?
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 160NHM2B-690 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.
!