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Five glass cylindrical fuses 20mm long 5mm diameter 63mA 250V 35A interrupt rating

Bussmann

Bussmann GDB-63MA Glass Fuse 63mA 250V 35A 5pk

SKU CH-JVA8-41AFB

Pack of five 20 mm × 5 mm glass fuses rated 63 mA at 250 V AC with a 35 A interrupt rating

  • Fast-acting protection for sensitive circuits
  • 63 mA rating with 35 A interrupt capacity at 250 V AC
  • Compact 20 mm x 5 mm glass body fits standard holders
  • UL recognised and CE marked for compliance confidence
  • Pack of five provides ready spares for maintenance

Circuit protection for low-current equipment

The Bussmann GDB-63MA is a fast-acting glass fuse rated at 63 mA and 250 V AC. It suits instruments, control circuits and small appliances that need precise over-current protection. Each pack contains five cylindrical fuses measuring 20 mm long by 5 mm diameter.

Fast-acting response under continuous fault current

The fuse interrupts at 35 A when a sustained over-current occurs at 250 V AC. Its single-element design opens quickly to limit energy let-through, protecting sensitive components from prolonged heating. The glass body allows visual confirmation of element status after a fault event.

63 mA rating defines the application limit

Only circuits that normally draw 63 mA or less should use this fuse. Higher-current loads will cause nuisance opening, while lower-rated fuses would not protect the intended equipment. The 250 V AC rating and 35 A interrupt capacity are fixed by the GDB series design.

How it compares

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

Price $20.99
Cheaper than about 78% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

Does the 35 A interrupt rating at 250 V AC generate noticeable heat or noise during continuous operation?

A glass fuse is a passive component; it produces no noise and negligible heat unless a fault occurs and the element opens.

What fuse holder or block series is required to fit the 20 mm × 5 mm cylindrical body?

The fuse is compatible with HTB series fuse blocks designed for 20 mm × 5 mm cylindrical fuses.

Can this fast-acting GDB series fuse protect legacy equipment originally fitted with Littelfuse 217 or Mersen GSB parts?

Yes, the GDB series is listed as equivalent to Littelfuse 217 and Mersen GSB, so it can directly replace those older fuses.

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