170M4609 Bussmann - Fuse

170M4609 Description

Bussmann 170M4609 is a fuse rated at 250 A. Fast-acting fuses like this are used to protect rectifiers, inverters and other power-electronic circuits against short circuits.

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Summary of Features

Target Applications

Bussmann 170M4609 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 170M4609 is a high speed square body semiconductor fuse, US style (bolted tags), size 1, 250 A, 690 V / 700 V IEC, -FU/- without indicator. Source: Bussmann Square Body US Style 690V/700V 40-2000A datasheet (BIF 720023). Values at 25°C unless noted.

Parameter	Value
Rated current	250 A RMS
Rated voltage	690 V / 700 V IEC
Body size	1
Style	US style (bolted tags)
Indicator	-FU/- without indicator
Pre-arc I²t	3100 A²s
Clearing I²t at 660 V (power factor 15%)	21000 A²s
Watts loss at rated current	55 W
Interrupting rating	200 kA RMS symmetrical (estimated 300 kA)
Overall length (B)	136 mm
Mounting centres (C1 / C2)	104 / 78 mm
Body A x D x E	50 x 69 x 53 mm

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