Bussmann FWP-40A14F

Bussmann FWP-40A14F

Overview

The Bussmann FWP-40A14F is a high-speed cylindrical fuse designed for semiconductor and power electronics protection. Rated at 40 A, it operates at 700 V AC and 800 V DC, with a 14 × 51 mm ceramic body that ensures durability and high interrupt performance.

This Class aR fuse provides superior short-circuit protection for semiconductors, rectifiers, and DC drives. With a 200 kA breaking capacity at AC and 50 kA at DC, it guarantees reliable fault interruption under extreme conditions. Its compact ferrule design supports installation in finger-safe CH14 modular holders and FW14-PCB blocks, enhancing system safety and flexibility.

Key Features

• High-speed Class aR fuse for semiconductor protection

• Current rating: 40 A

• Voltage rating: 700 V AC / 800 V DC

• Interrupt rating: 200 kA AC / 50 kA DC

• Dimensions: 14 × 51 mm (cylindrical ceramic body)

• Clearing I²t: 750 A²s

• Pre-arc I²t: 84 A²s

• Minimum melting: 84 I²t

• Watt loss: 8 W

• Connection: Ferrule end x ferrule end

• Fuse indicator: Non-indicating

• Frequency rating: 45–62 Hz

• Construction: Ceramic with nickel-plated ferrules

• Weight: 20.2 g

• Compliance: CE Marked, RoHS Compliant

• Certifications: UL Recognized, CSA Certified

• Packaging: Standard (Quantity: 1 piece)

Applications

• Semiconductor protection

• DC common bus systems

• DC drives and inverters

• Power converters and rectifiers

• High-speed industrial equipment

Why Choose the FWP-40A14F

• High interrupt capacity: 200 kA AC / 50 kA DC

• Compact 14 × 51 mm format for space efficiency

• Fast fault-clearing for semiconductor protection

• Compatible with finger-safe holders and PCB blocks

• Reliable Bussmann quality with UL and CSA approvals

Order Now

The Bussmann FWP-40A14F 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