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Five cylindrical glass fuses with metal end caps

Bussmann

Bussmann S506-50-R Glass Fuse 50mA 250V 35A 5pk line protection

SKU CH-Z028-32X5G

Pack of five glass time-delay fuses rated 50 mA at 250 V AC with a 35 A interrupt rating and 20 mm by 5 mm dimensions

  • Time-delay operation prevents nuisance trips
  • 50 mA rating protects sensitive low-current circuits
  • 35 A interrupt rating at 250 V AC handles fault currents
  • 20 mm × 5 mm glass body fits standard fuse holders
  • Pack of five provides ready spares for maintenance

Glass fuse for low-current circuits

The Bussmann S506-50-R is a cylindrical glass fuse rated at 50 mA and 250 V AC with a 35 A interrupt rating. It suits equipment that needs reliable overcurrent protection on low-current lines such as control boards, instrumentation or small power supplies.

Time-delay glass body fits standard 20 mm clips

The 20 mm by 5 mm glass tube is non-rejection and single-element, so it slides into common HTB-series fuse blocks without a special keyed holder. Time-delay action tolerates brief inrush surges while still opening on sustained overloads, reducing nuisance replacements in daily service.

Direct replacement for GDC, 218 and GDG series

This five-pack crosses to Bussmann GDC, Littelfuse 218 and Mersen GDG fuses, letting maintenance teams consolidate stock around one part number. The jump is worth it when existing fast-acting fuses blow on start-up transients and a time-delay characteristic is needed instead.

How it compares

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

Price $28.99
Cheaper than about 71% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

What does the 35 A interrupt rating at 250 V AC mean for this fuse?

It means the fuse can safely break a fault current up to 35 amps at 250 volts AC without rupturing.

What fuse block series does the 20 mm x 5 mm cylindrical glass body fit?

The S506 series fuse fits compatible HTB fuse blocks designed for 20 mm length and 5 mm diameter cartridges.

How do I install these time-delay glass fuses without damaging the element?

Insert each fuse straight into the HTB block clips; do not twist or force the glass body, which can crack the single element inside.

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