Bussmann
Bussmann ABC Series 30A Fast-Acting Ceramic Fuse 250VAC/125VDC
30 A fast-acting ceramic fuse rated 250 V AC and 125 V DC with 1 kA interrupt capacity
- 30 A fast-acting protection clears faults quickly
- 250 V AC and 125 V DC ratings suit mixed-voltage circuits
- Ceramic body withstands high interrupt energy
- 1 kA interrupt at 125 V AC and 75 V DC handles industrial surges
- Fits standard 1-1/4 in × 1/4 in fuse blocks
30 A Fast-Acting Ceramic Fuse
This 30 A fast-acting ceramic fuse carries a 250 V AC and 125 V DC rating. The ABC series design uses a cylindrical ceramic body measuring 1-1/4 in long by 1/4 in diameter. It is a non-rejection, non-indicating fuse suited for general circuit protection where fast response is required.
Suitable for 30 A circuits needing fast interruption
The fuse suits installers protecting 30 A branches at the stated AC and DC voltages with a 1 kA interrupt rating at 125 V AC or 75 V DC. Buyers needing a visual blown-fuse indicator or a rejection-style base that prevents wrong-amperage insertion should look at a different series.
Interrupt rating defines safe application
At 250 V AC the interrupt rating is 200 A, while at 125 V DC it is 400 A. These limits determine whether the fuse can safely clear a fault in your specific circuit. Verify that the available fault current stays within the listed interrupt values before specifying this part.
Highlights
- 30 A fast-acting protection clears faults quickly
- 250 V AC and 125 V DC ratings suit mixed-voltage circuits
- Ceramic body withstands high interrupt energy
- 1 kA interrupt at 125 V AC and 75 V DC handles industrial surges
- Fits standard 1-1/4 in × 1/4 in fuse blocks
Specifications
| Brand | BUSSMANN |
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Questions about this item
How do I install the 30A ABC ceramic fuse into a compatible fuse block, and what step is often missed?
Insert the cylindrical 1-1/4 in x 1/4 in fuse into a 3823, HFA, HHN, HK, HKP, HPF, HRK, HTB or S-8000 series block; the step often missed is verifying the block's voltage rating matches 250VAC or 125VDC.
What maintenance or replacement will the 30A ABC fuse need after it operates?
The fuse is a single-element, non-indicating device; once it interrupts a fault at 1kA or 200A/400A ratings, it must be replaced with an identical 30A ABC, Littelfuse 314 or Mersen GAB fuse.
What is the first limit reached when the 30A ABC fuse runs continuously at rated current?
The fuse's fast-acting element is designed to open on sustained overcurrent; the 30A rating is the continuous limit, and exceeding it triggers interruption at the 1kA (125VAC/75VDC) or 200A/400A (250VAC/125VDC) breaking capacity.
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