Product Description
The A50P350-4 Fuse is a 350 A, 500 V AC / 450 V DC high‑speed semiconductor cartridge fuse designed for demanding industrial and commercial applications. Part of the Amp‑Trap® Form 101 family, it’s engineered to provide very fast overcurrent interruption — ideal for protecting DC drives, uninterruptible power supplies (UPS), inverters, and other sensitive electronic and power systems. Its controlled-arc behavior and current-limiting characteristics help minimize stress on downstream components during fault clearing, improving equipment safety and longevity.
Product Details
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Brand: Gould Shawmut / Mersen
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Model / Part Number: A50P350-4
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Amperage Rating: 350 A
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Voltage Rating: 500 V AC / 450 V DC
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Fuse Type: Semiconductor / High‑Speed / Current‑Limiting / Amp‑Trap® Form 101
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Interrupting Rating: 100 kA AC, 79 kA DC
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Response Time: Very fast – Form 101 (designed for fast interruption)
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Body Style / Terminals: Blade-type cartridge fuse, cylindrical body, approx. 1.5 in diameter × 4.34 in length
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Approvals: UL‑recognized component (UL File 60314, Guide JFHR2)
- Condition: Used
Key Features
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High‑speed, current‑limiting protection — fast response minimizes damage in fault events.
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Designed to protect DC drives, UPS, inverters, and other sensitive equipment ≤ 500 V.
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Low I²t and controlled arc voltage reduce thermal and electrical stress on downstream components during fault clearing.
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Compact cartridge/blade format — easier installation in compatible fuse blocks or holders.
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UL / safety‑standards compliance — suitable for industrial and commercial use.
A50P3504-UA-YAG
