Bussmann 1000NHG4 NH4 Fuse-Lin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,246.20
Bussmann 1000NHG4 NH4 Fuse-Link, gL/gG, AC 500V

Bussmann 1000NHG4 NH4 Fuse-Link, gL/gG, AC 500V

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Model: 1000NHG4G

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

$4,246.20
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Bussmann 1000NHG4 NH4 Fuse-Link, gL/gG, AC 500V

The Bussmann 1000NHG4 is an LV (low voltage) NH4 fuse-link built to IEC 60269, rated AC 500V with a gL/gG utilization category for combined cable and equipment protection. Available in ratings from 630A to 1000A, this fuse-link delivers a 120 kA breaking capacity for demanding industrial power distribution and switchgear applications. It features a single top-mounted fuse status indicator and live gripping lugs for straightforward installation and fast visual verification of fuse condition.

Key Features

  • Amp Rating Range: Available in 630A and 1000A ratings to match circuit protection requirements.
  • NH4 Construction: IEC-style NH4 body designed for reliable low-voltage fuse protection.
  • Utilization Category: gL/gG rating provides combined cable protection and equipment protection.
  • Voltage Rating: AC 500V rated for standard low-voltage industrial circuits.
  • Breaking Capacity: 120 kA breaking capacity (120 kAIC interrupt rating) for high fault-current environments.
  • Fuse Status Indicator: Single top fuse status indicator for quick visual confirmation of fuse condition.
  • Live Gripping Lugs: Live (non-insulated) gripping lugs for standard fuse-holder mounting.
  • Compact Dimensions: 102 mm width x 115 mm height x 200 mm depth body.

Certifications & Compliance

  • CE Marked
  • Certified to IEC 60269

Technical Specifications

  • Class: Class C gL/gG
  • Voltage Type: AC
  • Product Width: 102 mm
  • Utilization Category: gL/gG (cable protection/equipment protection)
  • Breaking Capacity: 120 kA
  • Rated Switching Capacity: 120 kA
  • Interrupt Rating: 120 kAIC
  • Product Height: 115 mm
  • Application: industrial
  • Insulated Metal Gripping Lugs Imgl: No
  • Construction: NH4
  • Compliances: CE Marked
  • Product Length Depth: 200 mm
  • Certifications: IEC 60269
  • Fuse Indicator: Top fuse status indicator

Typical Applications

  • Industrial Power Distribution Systems
  • Cable and Equipment Overcurrent Protection
  • Switchgear and Panelboard Fuse Protection
  • Low-Voltage Motor and Feeder Circuits
  • Renovation and New Construction Electrical Upgrades

Why Bussmann?

Bussmann engineers this NH4 fuse-link to IEC 60269 standards with a gL/gG utilization category and a 120 kA breaking capacity, giving electrical professionals dependable, code-compliant overcurrent protection. The single fuse status indicator and live gripping lugs support fast field verification and straightforward installation in industrial low-voltage systems. Choose Bussmann for consistent, reliable fuse performance across the 630A to 1000A rating range.

Manufacturer Resources

Product Specs

Product Group:
Fuses
Class:
Class C gL/gG
Voltage Type:
AC
Product Width:
102 mm
Utilization Category:
gL/gG (cable protection/equipment protection)
Breaking Capacity:
120 kA
Rated Switching Capacity:
120 kA
Product Type:
Fuse Link
Interrupt Rating:
120 kAIC
Product Height:
115 mm
Product Details:
fuse
Application:
industrial
Insulated Metal Gripping Lugs Imgl:
No
Product Subgroup:
Other Fuses
Construction:
NH4
Compliances:
CE Marked
Product Length Depth:
200 mm
Department:
Electrical
Certifications:
IEC 60269
Fuse Indicator:
Top fuse status indicator
Voltage Rating:
500V AC
Amperage Rating:
630A - 1000A
Standards:
IEC 60269

Bussmann 1000NHG4G – Frequently Asked Questions

1) Will a Bussmann 1000NHG4 NH4 fuse-link fit my NH3 fuse holder?
No. The 1000NHG4 is an NH4 size body, and NH sizes are not interchangeable between holders or switch-disconnectors. The body measures 102 mm wide, 115 mm high and 200 mm deep, so it needs NH4-rated bases and blade centers. If your gear is NH3, you need an NH3 fuse-link instead.
2) Can I use the Bussmann 1000NHG4 on a 600V or 690V system?
It is rated 500V AC, so no. Applying a 500V AC link above its rated voltage risks failure to interrupt safely. For systems above 500V you need a link carrying the higher AC voltage rating. It is AC-rated only, so it is not a DC-circuit part.
3) Is 120 kA breaking capacity enough for my switchgear fault level?
The NH4 gL/gG link interrupts 120 kA, listed as 120 kAIC. That covers the prospective short-circuit current at most low-voltage industrial main and feeder positions. Compare it against the calculated available fault current at the fuse location on your study; if your bus is below 120 kA, the fuse is adequate for that duty.
4) Do these NH4 fuse-links have insulated gripping lugs?
No. The lugs are live (non-insulated) metal gripping lugs, not IMGL. That matters for handling: pulling or inserting them requires a proper NH fuse puller and the gear de-energized or, where the work practice allows it, appropriate PPE. If your site standard requires insulated gripping lugs for live changeout, specify an IMGL version instead.
5) Does a gL/gG fuse protect both the cable and the connected equipment?
Yes, that is exactly what gL/gG means: general purpose, full-range breaking, covering cable protection and equipment protection in the same link. It clears both small sustained overloads and hard short circuits. If you are protecting a motor circuit where you want the fuse to ride through starting current and let the overload relay handle thermal protection, an aM (motor-rated) link is the different tool for that job.
6) How do I tell if this NH fuse has blown without pulling it out?
There is a top-mounted fuse status indicator, so a maintenance tech can confirm the fuse condition visually from the front of the gear without removing the link or the carrier. Useful in MRO work where you are troubleshooting a dead phase and want to isolate the cause quickly.
7) Does the Bussmann NH4 fuse-link meet IEC 60269 for a European spec job?
It is built to IEC 60269 and CE marked, which is what a European or IEC-spec panel drawing normally calls for on an LV NH link. Note this is an IEC part, not a UL Class fuse, so it is not the item to use where a North American UL-listed fuse class is specified on the drawing.
How fast can I get the Bussmann 1000NHG4G 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 1000NHG4G come with a warranty?
Absolutely. The Bussmann 1000NHG4G 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 1000NHG4G?
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 1000NHG4G from ZenSupply?
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