Bussmann FWP-50A14F

Bussmann FWP-50A14F

Overview

The Bussmann FWP-50A14F is a high-speed cylindrical fuse engineered for semiconductor and power electronic protection. With a 50 A current rating and voltage capability of 700 V AC / 800 V DC, this Class aR fuse ensures fast and reliable fault protection for DC drives, power converters, and rectifier systems.

Built in a 14 × 51 mm cylindrical ceramic body, the FWP-50A14F provides a 200 kA AC interrupt rating and a 50 kA DC interrupt rating, making it suitable for high-energy industrial applications. Its fast-acting design with a minimum melting I²t of 200 A²s and a clearing I²t of 1800 A²s minimizes stress on sensitive semiconductor components.

Key Features

• High-speed cylindrical fuse for semiconductor protection

• Current rating: 50 A

• Voltage rating: 700 V AC / 800 V DC

• Fuse size: 14 × 51 mm

• Interrupt rating: 200 kA (AC) / 50 kA (DC)

• Class: aR (semiconductor protection)

• Fast-acting characteristics with low I²t values

• Minimum melting I²t: 200 A²s

• Clearing I²t: 1800 A²s

• Pre-arc I²t: 200 A²s

• Watt losses: 9 W

• Construction: Ceramic body

• Connection: Ferrule end x ferrule end

• Dimensions: 51 mm (L) × 15 mm (H) × 15 mm (W)

• Weight: 21.2 g

• Certifications: UL Recognized, CSA Certified

• Compliance: CE Marked, RoHS Compliant

• Quantity: Sold individually (1 piece)

Technical Specifications

• Manufacturer: Bussmann Series

• Catalog Number: FWP-50A14F

• Model Code: 50 A 700 V AC Ferrule 14×51 mm

• Product Type: High-speed fuse

• Fuse Type: FWP-A14F

• Current Rating: 50 A

• Rated Voltage: 700 V AC / 800 V DC

• Breaking Capacity: 200 kA AC / 50 kA DC

• Fuse Class: aR

• Response Characteristic: Fast-acting (semiconductor protection)

• Frequency Range: 45–62 Hz

• Fuse Shape: Cylindrical (14×51 mm)

• Fuse Indicator: Non-indicating

• Accessories: CH14 Modular Fuse Holder, FW14-PCB

• Material: Ceramic

• Packaging: Standard

Applications

• Semiconductor protection

• DC common bus systems

• DC drives

• Power converters and rectifiers

• Industrial electronic equipment

Why Choose the FWP-50A14F

• High breaking capacity for demanding power electronic circuits

• Fast-acting Class aR design protects sensitive semiconductors

• Compact 14×51 mm size for easy integration

• Certified to UL, CSA, CE, and RoHS standards

• Bussmann quality ensures reliable protection in industrial environments

Order Now

The Bussmann FWP-50A14F High-Speed Cylindrical Fuse is available and ships worldwide.

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NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply