Mersen Amp-Trap® A50P A50P300-4TA High-Speed Blade Fuse with TA Indicator, 300A 500VAC / 450VDC — Pack of 5

Product overview

• Part number: A50P300-4TA
• Series: Amp‑Trap® A50P (Form 101)
• Manufacturer: Mersen
• Type: High‑speed blade fuse with TA indication
• Ampere rating: 300 A
• Rated voltage: 500 V AC (UL), 450 V DC (UL)
• Interrupting capacity (AC Max I.R.): 50 kA
• Indication system: Yes — TA indicator
• Connection/terminal: Blade, tin‑plated brass
• Body/insulating material: GMG (glass‑mat reinforced)
• Dimensions: Length 4.34 in (≈110.2 mm); Diameter 1.50 in (≈38.1 mm)
• Product weight: 0.72 lb each
• Sell pack quantity: 5 EA
• EAN/UPC: 782001140656
• Product group: Semiconductor Protection Fuses

Key features

• High‑speed characteristic (low I²t) for rapid clearing and superior protection of power semiconductors and sensitive power electronics.
• TA indication provides positive blown‑fuse indication for fast fault identification and reduced downtime.
• High interrupting capacity (50 kA) suitable for industrial distribution systems with high fault currents.
• Tin‑plated brass blade terminals ensure reliable electrical contact and corrosion resistance.
• Robust GMG insulating body designed for industrial environments and direct replacement in equipment specified for Amp‑Trap A50P fuses.

Applications

• DC drives and motor controllers
• Uninterruptible Power Supplies (UPS)
• Inverters and 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
• Sell pack weight: 3.78 lb
• Sell pack dimensions: 2.14 in × 5.00 in × 2.31 in

Handling, installation & safety

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

What’s included

• 5 × Mersen Amp‑Trap® A50P A50P300-4TA high‑speed blade fuses with TA indicator, 300 A, 500 VAC / 450 VDC

Verification

• Confirm part marking A50P300-4TA and EAN/UPC (782001140656) on delivery. Request the official Mersen datasheet for full electrical characteristics and approvals.