Bussmann NON-400 One-Time 400A 250V Class H Fuse

Retail Price: $199.99
Price: $128.25
  • SKUFH340B
In stock - 24 units available.
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Bussmann NON-400 Fuse

Stock photo shown for reference only. You will receive a unit of the listed catalog number in the condition stated above, inspected and tested to ESP Product Standards. Cosmetic appearance may vary.

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30-Day Returns Return authorization available within 30 days of receipt. Return policy
Talk to a Real Person Questions about fit, condition, or availability? Call 800-664-4377. Credit terms available for approved accounts.
Found this part for less somewhere else? Surplus and reconditioned prices vary widely with scarcity and condition — tell us what you found and make us an offer. Include the catalog number and we’ll respond same business day: call 800-664-4377 or email us. Every ESP unit is tested and backed by our 1-year operational guarantee — make sure you’re comparing like for like.

Description

The Bussmann NON-400 is a 400-amp, 250-volt One-Time Class H fuse with knife-blade terminals.

ManufacturerBussmann
SeriesOne-Time
Catalog NumberNON-400
Fuse ClassClass H
Amperage400 A
Max Voltage250 V AC
DC Rating125 V DC (10 kA)
Interrupting Rating10 kA
SpeedFast-acting (non-time-delay)
Terminals / MountingKnife-blade
ConditionSurplus, inspected and tested
Product StatusActive

More Details

The NON is Bussmann's basic One-Time fuse for 250-volt circuits: a Class H cartridge that opens once and is then replaced, with no time delay and no current limitation. At 400 amps, the NON-400 fits the 201–400A knife-blade clip size used in 240V safety switches and older panelboards. It's the part to use when the original installation called for Class H one-time fuses and the goal is a like-for-like replacement. Keep its limits in mind: Class H fuses are rated only 10 kA interrupting, and they won't fit Class R rejection clips. Where fault current is higher, a Class RK5 or RK1 dual-element fuse fits the same non-rejection clips and adds current limitation. Every fuse we ship is inspected and tested first.

See the manufacturer's data sheet for NON-400 specifications.

What is "surplus new"?

Surplus new means the item has never been installed or put into service. It may not arrive in its original packaging, but it has never been used.

What does "reconditioned" mean?

Reconditioned items have been inspected, cleaned, and tested to confirm they operate to the manufacturer's original specifications. Every reconditioned item we sell carries a one-year operational guarantee.

How fast will my order ship?

In-stock orders placed before 12pm PST usually ship the same business day via UPS, with tracking provided.

What if I can't find the item I need?

Call 800-664-4377 — we stock thousands of obsolete and hard-to-find electrical parts that may not yet be listed online.

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