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Five cylindrical glass fuses with metal end caps

Bussmann

Bussmann S500-3.15-R Glass Fuse 3.15A 250V 35A 5PK

SKU CH-XFYJ-4C9FT

Pack of five fast-acting 3.15 A glass fuses rated 250 V AC with a 35 A interrupt capacity

  • Fast-acting protection clears faults quickly
  • 15 A rating matches 250 V AC circuits
  • 35 A interrupt rating handles short-circuit energy
  • Glass tube construction fits 20 mm x 5 mm holders
  • Pack of five covers multiple replacements

Bussmann S500 Glass Fuse 3.15A 250V

The Bussmann S500 is a fast-acting glass fuse rated at 3.15 amps and 250 volts AC with a 35 amp interrupt rating. It suits technicians and hobbyists who need reliable overcurrent protection for low-voltage equipment, control circuits or small appliances. The cylindrical 20mm by 5mm body fits standard fuse holders used in many industrial and automotive electrical panels. Each pack contains five fuses for convenient spares.

Check holder compatibility and circuit rating

Verify that your fuse holder accepts a 20mm long by 5mm diameter cylindrical glass fuse before ordering. Confirm the circuit operates at or below 250 volts AC and that the required current rating is exactly 3.15 amps. The fast-acting characteristic opens quickly on overloads, so ensure the application does not need a time-delay fuse for motor start-up surges. Cross-reference the Bussmann GDB, Littelfuse 217 or Mersen GSB series if you are replacing an existing part.

Five-fuse pack simplifies maintenance

The package supplies five identical fuses, reducing downtime when a replacement is needed. Having spares on hand avoids waiting for a new order during critical repairs. The fuses carry CE, CSA and UL JDYX2 certifications, confirming they meet recognised safety standards for electrical installations. No additional software or accessories are included with this hardware-only product.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 93% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

What does the pack contain and is any additional hardware required?

The pack contains five 3.15 A 250 V AC glass fuses, 20 mm long and 5 mm in diameter. A compatible fuse block such as the HTB series must be purchased separately.

Which rating should I select for a circuit needing 3.15 A protection?

Choose the S500-3.15-R model rated at 3.15 A with a 35 A interrupt rating at 250 V AC; it matches the required current and voltage directly.

What does the 35 A interrupt rating mean when the fuse is installed?

It means the fuse can safely break a fault current of up to 35 A at 250 V AC without rupturing, protecting the circuit during a short-circuit event.

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