Bussmann FWP-50A14FA 50A 700V AC High-Speed Semiconductor Fuse – 800V DC

Description

Product Overview
The Bussmann FWP-50A14FA high-speed fuse is part of Eaton’s Bussmann FWP series of ferrule-style semiconductor protection fuses. It is designed for electrical systems where fast fault-current interruption helps protect sensitive power electronics.
This fuse is intended for compatible DC common-bus systems, DC drives, power converters, rectifiers, and reduced-voltage starters. Its aR utilization category provides partial-range semiconductor protection, so the complete installation must include appropriate protection against overloads where required.

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Technical Specifications
Specification Details
Brand Bussmann / Eaton
Model FWP-50A14FA
Product type High-speed semiconductor fuse
Current rating 50A
Rated AC voltage 700V AC
Rated DC voltage Up to 800V DC
Utilization category aR
Fuse construction Ferrule-style cartridge
Dimensions Approximately 14.3 × 50.8 mm
AC breaking capacity 200kA RMS symmetrical
DC breaking capacity Up to 50kA at 800V DC, according to manufacturer specifications
Mounting Compatible fuse holder required
Applications DC drives, power converters and rectifiers
Category Circuit Protection & Distribution → Fuses & Fuse Holders → Industrial Fuses
Specifications are based on manufacturer documentation and product data for FWP-50A14FA.

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Key Features
– 50A rated current for compatible power circuits.
– High-speed operation for semiconductor protection.
– aR utilization category.
– 700V AC and 800V DC ratings.
– Compact ferrule-style construction.
– Designed for compatible industrial power-conversion systems.
Applications
– Semiconductor and power-electronic protection.
– Industrial DC drive systems.
– Power converters and rectifiers.
– DC common-bus applications.
– Compatible reduced-voltage starter systems.
Compatibility and Installation Guidance
Verify the complete part number, fuse dimensions, operating class, rated voltage, and holder compatibility before installation. The fuse must be selected according to the protected semiconductor equipment’s requirements. Do not substitute a general-purpose fuse based only on its 50A rating. Installation should be carried out by a qualified electrical professional with the circuit safely isolated.
UAE Availability and Quotation
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