M075543Ferraz Shawmut - Fuse

M075543 Description

The Mersen M075543 is a semiconductor fuse rated at 250 V and 450 A. Components of this type are commonly used in overcurrent protection of power semiconductors and power-electronic circuits.

USComponent supplies power semiconductors and industrial electronic components to engineers, OEMs and maintenance teams worldwide, including legacy and hard-to-find part numbers. Please confirm ratings, package and pin-out against the manufacturer's datasheet before ordering, and request a quote for current pricing and lead time on the M075543.

Summary of Features

Target Applications

Ferraz Shawmut M075543 is used for protection of power semiconductors (diodes, thyristors, IGBT modules) in rectifiers, AC drives, soft starters, UPS systems and other power electronic equipment with AC supply up to 250 V.

Key Specifications

Mersen (Ferraz Shawmut) M075543 is a Protistor BS88-4 semiconductor protection fuse, size 36x27, 450 A, 250 VAC, class aR, with built-in trip indicator (designation URGG 36T450; catalog number BS36UG25V450T). Source: Mersen Protistor BS88-4 semiconductor fuses 36x27 / 2x36x27, 250 VAC datasheet (SCAC206-207).

Parameter	Value
Catalog number	BS36UG25V450T
Reference number	M075543
Designation	URGG 36T450
Standard	BS 88-4 / IEC 60269-4, VDE 636-23
Rated voltage	250 VAC
Rated current	450 A
Utilization class	aR
Size	36x27
Breaking capacity	100 kA at 250 V
Pre-arcing I²t (1 ms)	33500 A²s
Total clearing I²t at 250 V	170000 A²s
Watts loss at 0.8 IN / IN	27.1 W / 54.1 W
Trip indicator	with built-in trip indicator
Matching microswitch	MC 36 GR 2.5, ref. P092496
Minimum operating voltage for trip indicator	20 V
Weight (approx.)	170 g

Download M075543 Datasheet

M075543 PDF Datasheet