170M4411 Bussmann - Fuse

170M4411 Description

170M4411 is a 350 A fuse made by Bussmann. Its job is to clear faults fast enough to save expensive semiconductors in drives, UPS units and DC supplies.

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Summary of Features

Target Applications

Bussmann 170M4411 is used for protection of power semiconductors (diodes, thyristors and IGBT modules) in rectifiers, AC and DC drives, inverters, UPS systems, soft starters and other power conversion equipment.

Key Specifications

Bussmann 170M4411 is a high speed square body semiconductor fuse, size 1, flush end contact, 350 A, 690 V IEC / 700 V UL, with -B/- visual indicator. Source: Bussmann Square Body Flush End Contact 690V/700V 40-2000A datasheet (BIF 720019). Values at 25°C unless noted.

Parameter	Value
Rated current	350 A RMS
Rated voltage	690 V IEC / 700 V UL
Body size	1
Contact type	Flush end contact
Indicator	-B/- visual indicator
Pre-arc I²t	8500 A²s
Clearing I²t at 660 V (power factor 15%)	59000 A²s
Watts loss at rated current	60 W
Interrupting rating	200 kA RMS symmetrical (estimated 300 kA)
Main dimensions A / B / D / E	50 / 51 / 69 / 53 mm (see datasheet drawing)
Contact thread	M8

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