Mersen Amp‑Trap® A50P A50P400-4 High‑Speed Blade Fuse, 400A 500VAC / 450VDC — Pack of 5

Product overview

• Part number: A50P400-4
• Series: Amp‑Trap® A50P (Form 101)
• Manufacturer: Mersen
• Type: High‑speed blade fuse
• Ampere rating: 400 A
• Rated voltage: 500 V AC (UL), 450 V DC (UL)
• Interrupting capacity (AC Max I.R.): 52 kA
• Frequency: 50/60 Hz
• Speed/Characteristic: High Speed
• Connection/terminal: Blade, tin‑plated brass
• Mounting: Bolted (blade terminal)
• Body/insulating material: GMG (glass‑mat reinforced)
• Dimensions: Length 4.34 in (≈110.2 mm); Diameter 1.50 in (≈38.1 mm)
• Product weight: 0.68 lb (per unit)
• Sell pack quantity: 5 EA
• Estimated sell pack weight: 3.40 lb (5 × 0.68 lb)
• EAN/UPC: 782001946234
• Product group: Semiconductor Protection Fuses

Key features

• High‑speed characteristic with low I²t for fast clearing to protect power semiconductors and sensitive power electronics.
• 52 kA interrupting capacity suitable for industrial systems with high prospective fault currents.
• Tin‑plated brass blade terminals for reliable contact and corrosion resistance.
• Robust GMG insulating body and Form 101 design for straightforward replacement in equipment specified for Amp‑Trap A50P fuses.

Applications

• DC drives and motor controllers
• Uninterruptible Power Supplies (UPS)
• Inverters, converters and general power‑conversion equipment
• Semiconductor protection and industrial power distribution
• Field replacements and maintenance spares

Mechanical & packing data

• Product length: 4.34 in (≈110.2 mm)
• Product diameter: 1.50 in (≈38.1 mm)
• Mounting: Bolted (blade terminal)
• Sell pack quantity: 5 EA
• Estimated sell pack weight: 3.40 lb

Installation & safety notes

• Replace only with identical part number and rating to preserve intended overcurrent protection characteristics.
• Install in compatible bolted blade holders and follow equipment manufacturer torque and mounting instructions.
• Verify compatibility with system voltage, current rating and fault capacity before installation.
• For detailed time‑current curves, I²t values, ambient derating and agency approvals, consult the official Mersen datasheet.

What’s included

• 5 × Mersen Amp‑Trap® A50P A50P400-4 high‑speed blade fuses, 400 A, 500 VAC / 450 VDC

Verification

• Confirm part marking A50P400-4 and EAN/UPC (782001946234) on delivery. Request the official Mersen datasheet for full electrical characteristics and certifications.