Mersen Ferraz Shawmut A50P20-1 High Speed Semiconductor Fuse, 20A, 500VAC/450VDC, Ferrule, Clip Mount, 50kA IR, Amp-Trap A50P Series, 14.2×50.8mm – Pack of 10

Mersen Ferraz Shawmut A50P20-1 High Speed Semiconductor Fuse, 20A, 500VAC/450VDC — Pack of 10

The A50P20-1 is a high-speed semiconductor protection fuse from Mersen (Ferraz Shawmut), designed for fast fault clearing and low I2t let-through to safeguard sensitive power electronics. As part of the Amp-Trap A50P series, it is well-suited for DC drives, UPS systems, rectifiers, and inverters operating at 50/60 Hz within the stated voltage and current ratings.

Key Electrical Ratings

• Ampere rating: 20 A
• Voltage ratings: 500 VAC (UL), 450 VDC (series rating)
• Frequency: 50/60 Hz
• Interrupting rating (max IR): 50 kA AC
• Characteristic: High Speed (semiconductor protection)
• Application: AC/DC within specified ratings

Construction & Mounting

• Terminal type: Ferrule
• Mounting method: Clip (ferrule fuse holders)
• Terminal material: Tin-plated copper
• Body/insulating material: GMG
• Product group: Semiconductor Protection Fuses

Mechanical & Packaging

• Body diameter: 14.2 mm
• Length: 50.8 mm
• Unit weight: ≈0.018 kg (typical for this form factor)
• UPC/EAN: 782001949921
• Pack quantity: 10 units

Applications

• DC drives and soft starters
• UPS and energy storage systems
• Rectifiers, inverters, and power converters
• Protection of IGBTs, SCRs, and diodes requiring low I2t

Notes

• Use with compatible ferrule clips/holders rated for 500 VAC and the required current.
• Confirm coordination and I2t with equipment specifications and the Mersen datasheet.

Package Contents

• 10 × Mersen Ferraz Shawmut A50P20-1 high speed semiconductor fuses (20 A, 500 VAC/450 VDC)

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