R082378Ferraz Shawmut - Fuse

R082378 Description

The Mersen R082378 is a semiconductor fuse rated at 250 V and 300 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 R082378.

Summary of Features

Target Applications

Ferraz Shawmut R082378 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) R082378 is a Protistor BS88-4 semiconductor protection fuse, size 36x27, 300 A, 250 VAC, class gR, with built-in trip indicator (designation URGG 36T300; catalog number BS36UG25V300T). Source: Mersen Protistor BS88-4 semiconductor fuses 36x27 / 2x36x27, 250 VAC datasheet (SCAC206-207).

Parameter	Value
Catalog number	BS36UG25V300T
Reference number	R082378
Designation	URGG 36T300
Standard	BS 88-4 / IEC 60269-4, VDE 636-23
Rated voltage	250 VAC
Rated current	300 A
Utilization class	gR
Size	36x27
Breaking capacity	100 kA at 250 V
Pre-arcing I²t (1 ms)	7290 A²s
Total clearing I²t at 250 V	49600 A²s
Watts loss at 0.8 IN / IN	18.6 W / 37.2 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 R082378 Datasheet

R082378 PDF Datasheet