A50P175-4 Ferraz Shawmut - Fuse

A50P175-4 Description

Mersen makes the A50P175-4, a 500 V, 175 A high speed fuse. Its job is to clear faults fast enough to save expensive semiconductors in drives, UPS units and DC supplies.

USComponent has sourced power semiconductors for maintenance teams and OEMs since 2001. For price and availability of the A50P175-4, send us a request for quote. Please confirm the specifications against the manufacturer's datasheet before purchase.

Summary of Features

Target Applications

Ferraz Shawmut A50P175-4 is used for protection of DC drives, uninterruptible power supplies (UPS) and other power electronic equipment of 500 V or less, including power semiconductor (diode, thyristor, IGBT) protection.

Key Specifications

Mersen (Ferraz Shawmut) A50P175-4 is an Amp-Trap Form 101 A50P high speed fuse, 175 A, 500 VAC / 450 VDC, blade, bolt-in mounting. Source: Mersen A50P Amp-Trap Form 101 datasheet (HS 14-15, 2025).

Parameter	Value
Series	A50P Amp-Trap Form 101 high speed fuse
Rated current	175 A
Rated voltage	500 VAC / 450 VDC
Interrupting rating	100 kA AC / 79 kA DC (L/R 10 ms)
Mounting type	4: blade, bolt-in
Characteristics	Very fast acting, current limiting, low I²t, controlled arc voltage
Approvals	UL Recognized Component (JFHR2, file 60314): AC and DC
Overall length (A)	3.63 in (92.2 mm)
Body diameter / width (B)	1.22 in (31.0 mm)
Mounting hole centres (D)	74.7 mm
Matching fuse block	P243E

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