Mersen Amp-Trap® A50P A50P50-4 High-Speed Blade Fuse, 50A 500VAC / 450VDC — Pack of 10

Product overview

• Part number: A50P50-4
• Series: Amp-Trap® A50P (Form 101)
• Manufacturer: Mersen
• Type: High-speed blade fuse
• Ampere rating: 50 A
• Rated voltage: 500 V AC (UL), 450 V DC (UL)
• Breaking capacity (AC Max I.R.): 25 kA
• Quantity: Pack of 10

Key features

• High-speed characteristic (low I²t) for fast clearing and superior protection of power semiconductors and drives.
• Designed for DC drives, UPS systems, inverters and other power conversion equipment requiring reliable, fast-acting overcurrent protection.
• Blade (male) terminal with tin-plated copper connection for secure electrical contact and corrosion resistance.
• Robust insulating body (GMG) suitable for industrial environments.
• High interrupting capacity (25 kA) for demanding industrial distribution systems.

Mechanical & packing data

• Product length: 3.19 in (≈81 mm)
• Product diameter: 0.81 in (≈20.6 mm)
• Mounting: bolted (blade terminal)
• Sell pack quantity: 10 EA
• Sell pack weight: ~2.1 lb

Applications

• DC drives and motor controllers
• Uninterruptible Power Supplies (UPS)
• Inverters and power conversion systems
• Semiconductor protection and industrial power distribution
• Field replacement and maintenance spares

Safety and handling

• Replace only with identical type and rating to preserve system protection characteristics.
• Observe polarity/installation orientation and manufacturer installation instructions for torque and mounting.
• Verify compatibility with system voltage, current, and fault capacity before installation.

What’s included

• 10 × Mersen Amp‑Trap® A50P A50P50-4 high-speed blade fuses, 50 A, 500 VAC / 450 VDC

Verification and datasheet

• Confirm part marking (A50P50-4) and EAN/UPC (782001945992) on delivery. For time-current curves, I²t values, ambient derating, and agency approvals, request the official Mersen datasheet prior to installation.