Bussmann JJS-600 Eaton series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,886.41
Bussmann JJS-600 Eaton series JJS fuse, Current-limiting very fast acting fuse, Small footprint, VFD line protection, 600 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 200 kAIC at 600 V, Standard, 1, 600 V

Bussmann JJS-600 Eaton series JJS fuse, Current-limiting very fast acting fuse, Small footprint, VFD line protection, 600 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 200 kAIC at 600 V, Standard, 1, 600 V

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Model: JJS-600
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,886.41
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Bussmann JJS-600 Eaton series JJS fuse, Current-limiting very fast acting fuse, Small footprint, VFD line protection, 600 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 200 kAIC at 600 V, Standard, 1, 600 V.

  • Amp rating: 600 A
  • Voltage rating: 600 V
  • Class: Class T
  • Interrupt rating: 200 kAIC at 600 Vac
  • Product type: Fuse
  • Dimensions (L x W x H): 3.98 x 1.25 x 1.25 in

Genuine Bussmann part number JJS-600.

Manufacturer Resources

Product Specs

Amperage Rating:
600 A
Class:
Class T
Compliances:
CE Marked
Connection:
Bolted blade end x bolted blade end
Fuse Indicator:
Non-indicating
Interrupt Rating:
200 kAIC at 600 Vac
Packaging Type:
Standard
Product Height:
1.25 in
Product Length Depth:
3.98 in
Product Weight:
1 lb
Product Width:
1.25 in
Special Features:
Small footprint
Voltage Rating:
600 V
Department:
Electrical
Item Quantity:
1
Product Type:
Fuse
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann JJS-600 – Frequently Asked Questions

1) Will a Bussmann JJS-600 fit a Class T 600 A fuse block, or do I need a different holder?
The JJS-600 is a Class T fuse with bolted blade ends on both terminals, so it mounts to a 600 V Class T block or holder sized for 600 A bolt-in blades. It is not a ferrule or knife-blade cartridge and won't drop into Class J or Class R clips. Body size is 3.98 in long by 1.25 in wide by 1.25 in high, which is the small-footprint advantage Class T has over larger classes at the same rating.
2) Can I use the JJS-600 on a 480 V three phase service, or is it strictly 600 V?
A 600 V rating is a maximum, not a requirement, so the JJS-600 is fine on 480 V and 240 V AC systems as well. What matters on the panel schedule is the interrupting rating: 200,000 A at 600 Vac, which covers most high available-fault-current service entrance and switchboard locations.
3) Is a Class T fuse like the JJS-600 the right choice for protecting a VFD, or should I use a different class?
Class T in the JJS series is a current-limiting, very fast acting fuse, which is what a variable frequency drive's input rectifier needs: it clears a fault fast enough to limit let-through energy to the semiconductors. Slower classes such as time-delay Class RK5 are built to ride through motor inrush and will not protect drive electronics the same way. Use the JJS-600 where the drive manufacturer calls for a fast-acting, current-limiting line fuse at 600 A or less.
4) How do I tell if a JJS-600 has blown? Does it have a blown-fuse indicator?
Non-indicating. There is no pop-out pin or LED on the JJS-600, so troubleshooting is done by voltage check across the fuse or by removing it and ringing it out with a meter. If your maintenance crew relies on a visual indicator for fast fault-finding, specify an indicating fuse or add a fuse-blown relay at the block instead.
5) Does the Bussmann JJS-600 come as a single fuse or in a multi-pack? I need three for a three-phase feeder.
One fuse per order, in standard packaging. A three phase feeder takes three, so order quantity three of part number JJS-600 to make up a set. Each fuse weighs 1 lb.
6) I have a 300 V Class T block. Can I put a JJS-600 in it?
No. The JJS series is the 600 V Class T line and the fuse body is dimensionally different from the 300 V Class T (JJN) fuses, which are shorter. A 600 V fuse should not be forced into a 300 V rated block regardless. Match the block's voltage rating and the 600 A size to the fuse.
7) What is the exact Bussmann part number and is the JJS-600 CE marked for an export panel build?
Part number is JJS-600 from the Eaton Bussmann JJS series, 600 A, 600 V, Class T. It carries a CE mark, which matters if the assembly is headed for a market that requires CE documentation on the components.
How fast can I get the Bussmann JJS-600 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 JJS-600 come with a warranty?
Absolutely. The Bussmann JJS-600 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 JJS-600?
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 JJS-600 from ZenSupply?
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