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Cylindrical fiberglass fuse, 1-1/4 inch by 1/4 inch, silver end caps

Bussmann

Bussmann FWH5-016A6F 16A 500V Fast-Acting Semiconductor Fuse

SKU CH-5XNG-2R67P

Fast-acting semiconductor fuse rated 16 A at 500 V AC/DC with a 50 kA interrupt rating

  • Fast-acting response protects sensitive semiconductors
  • 16 A rating matches circuit design requirements
  • 500 V AC/DC rating suits high-voltage applications
  • 50 kA interrupt rating handles severe fault currents
  • CSA certified and UL recognised for code compliance

Semiconductor fuse for power circuits

The Bussmann FWH5-016A6F is a 16 A fast-acting semiconductor fuse rated for 500 V AC and 500 V DC. It protects sensitive power electronics from overcurrent damage in industrial and automotive electrical systems. The fuse carries a 50 kA interrupt rating at 500 V AC and meets CE, CSA and UL recognised standards.

Cylindrical body fits 1BS fuse blocks

The fuse uses a cylindrical fiberglass body measuring 1-1/4 in length by 1/4 in diameter with a non-rejection design. It installs directly into compatible 1BS series fuse blocks without special tooling. The single-element construction provides reliable fast-acting response to fault currents in semiconductor applications.

Cross-reference equivalents simplify sourcing

The FWH series matches equivalent series A50P, A50QS and L50S from other manufacturers including Littelfuse L50S and Mersen A50P. This interchangeability allows maintenance teams to source replacements from multiple supply channels. The non-indicating design means visual inspection or testing equipment is required to confirm fuse status after a fault event.

How it compares

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

Price $19.99
Cheaper than about 79% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON BUSSMANN

Questions about this item

How long will the 16 A fuse element survive a continuous full-load current before opening?

The fuse is rated to carry 16 A continuously; it will not open from normal load current alone, only from an overcurrent condition.

Does the cylindrical body run hot enough to require forced-air cooling when mounted in a closed fuse block all day?

Normal operation at rated current produces only modest heat; the fiberglass body is designed for convection cooling inside standard 1BS blocks without extra airflow.

Which fuse-block series must already be on the panel for this 1-1/4 in x 1/4 in cylindrical fuse to fit?

It fits the compatible 1BS fuse-block series designed for this body style and diameter.

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