A50P300-4TA Ferraz - Fuse

A50P300-4TA Description

Ferraz Shawmut makes the A50P300-4TA, a fuse. It protects power semiconductors such as diodes, thyristors and IGBTs from short-circuit damage in drives, rectifiers and UPS systems.

USComponent has been supplying power semiconductors since 2001, including discontinued and hard-to-find part numbers. Send us an RFQ for the A50P300-4TA and we will reply with price, condition and lead time. Please check the manufacturer's datasheet to confirm ratings, package and pin-out before you order.

Summary of Features

Target Applications

Ferraz A50P300-4TA 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) A50P300-4TA is an Amp-Trap Form 101 A50P high speed fuse, 300 A, 500 VAC / 450 VDC, blade, bolt-in mounting, with trigger actuator (TA) for blown-fuse microswitch. 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	300 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
Indicator	trigger actuator (TA) for blown-fuse microswitch
Characteristics	Very fast acting, current limiting, low I²t, controlled arc voltage
Approvals	UL Recognized Component (JFHR2, file 60314): AC and DC
Overall length (A)	4.34 in (110 mm)
Body diameter / width (B)	1.50 in (38.1 mm)
Mounting hole centres (D)	86.6 mm
Matching fuse block	P266C

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