Bussmann
Bussmann S501-3.15-R Ceramic Fuse 3.15A 1.5kA 250V AC 5 PK line protection
Pack of five fast-acting 3.15 A ceramic fuses rated 1.5 kA at 250 V AC for line protection
- Fast-acting response clears faults quickly
- Ceramic body withstands high temperatures
- 5 kA interrupt rating at 250 V AC
- 15 A rating protects sensitive circuits
- Pack of five provides spare fuses
Circuit protection for 250 V AC lines
These ceramic fuses are rated at 3.15 A with an interrupt capacity of 1.5 kA at 250 V AC. They suit equipment that requires fast-acting, non-indicating overcurrent protection in a cylindrical 20 mm by 5 mm body. The pack contains five pieces for maintenance or installation spares. They carry CE, CSA and UL recognition for compliant builds.
Cool-running ceramic body under normal current
The ceramic tube dissipates heat effectively during typical operation at or below the 3.15 A rating. Fast-acting elements clear low-level faults quickly without sustained temperature rise. No forced airflow or special mounting is needed for standard line protection duties. The non-rejection design fits compatible HTB series fuse blocks directly.
Reliable interruption at 1.5 kA short-circuit level
When a severe fault occurs, the fuse interrupts up to 1.5 kA at 250 V AC without rupture of the ceramic body. The single-element construction ensures consistent clearing times during sustained overcurrent events. Performance remains stable across repeated duty cycles within the rated parameters. The 5-pack quantity supports immediate replacement after any fault event.
Highlights
- Fast-acting response clears faults quickly
- Ceramic body withstands high temperatures
- 5 kA interrupt rating at 250 V AC
- 15 A rating protects sensitive circuits
- Pack of five provides spare fuses
Specifications
| Brand | EATON BUSSMANN |
|---|
Questions about this item
How do I install the Bussmann S501-3.15-R fuse in an HTB fuse block and what step is often missed?
Insert the 20 mm cylindrical body into the HTB fuse block clips until fully seated; the step often missed is confirming the 250 V AC and 1.5 kA interrupt rating match the circuit requirements.
What maintenance or replacement will the Bussmann S501-3.15-R fuse need after it operates?
The fast-acting, single-element ceramic fuse is non-replaceable once it interrupts a fault; you must discard the open fuse and install a new 3.15 A unit from the 5-pack.
What limit appears first when the Bussmann S501-3.15-R fuse runs under sustained load?
The 3.15 A continuous current rating is the first limit; sustained current above this value will cause the fast-acting element to open and interrupt the circuit.
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