170M4719 Bussmann - Fuse

170M4719 Description

Bussmann 170M4719 is a fuse rated at 700 V and 900 A. 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 170M4719 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 170M4719 is a high speed square body semiconductor fuse, US style (bolted tags), size 1, 900 A, 550 V IEC (UL / CSA status: consult Bussmann), -FU/115 without indicator (115 mm version). Source: Bussmann Square Body US Style 690V/700V 40-2000A datasheet (BIF 720023). Values at 25°C unless noted.

Parameter	Value
Rated current	900 A RMS
Rated voltage	550 V IEC (UL / CSA status: consult Bussmann)
Body size	1
Style	US style (bolted tags)
Indicator	-FU/115 without indicator (115 mm version)
Pre-arc I²t	155000 A²s
Clearing I²t at 660 V (power factor 15%)	850000 A²s
Watts loss at rated current	100 W
Interrupting rating	200 kA RMS symmetrical (estimated 300 kA)
Overall length (B)	157 mm
Mounting centres (C1 / C2)	126 / 100 mm
Body A x D x E	50 x 69 x 53 mm

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