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Five glass tube fuses with metal end caps

Bussmann

Bussmann S506-3.15-R Glass Fuse 3.15A 250V 35A 5 PK

SKU CH-G2FN-TXSHQ

Glass time-delay fuse rated 3.15 A at 250 V AC with a 35 A interrupt rating, supplied in a pack of five

  • Time-delay protection handles surges without nuisance blows
  • 35 A interrupt rating at 250 V AC clears faults safely
  • 20 mm × 5 mm glass body fits standard HTB blocks
  • cURus, IMQ and MITI/JET 1641-31003-1005 marks confirm compliance
  • Pack of five provides ready spares for maintenance

What this fuse does

The Bussmann S506-3.15-R is a glass-bodied, cylindrical fuse rated at 3.15 A and 250 V AC with a time-delay characteristic. It is designed for low-voltage circuit protection in equipment that needs a brief inrush tolerance before opening. The pack contains five fuses.

Interrupt rating decides fit

The fuse carries an interrupt rating of 35 A at 250 V AC, meaning it can safely break a fault current up to that level without rupturing. If the prospective short-circuit current in your circuit exceeds 35 A, this fuse is not adequate and a higher-rated type must be chosen.

Simple push-in installation

Each fuse measures 20 mm long by 5 mm diameter and fits standard 5 × 20 mm fuse holders or compatible blocks such as the HTB series. The non-rejection body allows insertion either way round, but verify the holder clips make firm contact; loose clips are the most common cause of nuisance heating.

How it compares

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

Price $14.99
Cheaper than about 87% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

What does the 3.15 A rating mean when the fuse is installed in a circuit?

It is the continuous current the fuse will carry without opening; sustained current above this value will eventually cause the element to melt.

What does the 35 A at 250 V AC interrupt rating cap in practice?

It limits the maximum prospective short-circuit current the fuse can safely break at 250 V AC to 35 A.

What physical dimensions does the fuse need to fit a holder?

The cylindrical glass body measures 20 mm long by 5 mm diameter.

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