170M4659 Bussmann - Fuse

170M4659 Description

The 170M4659 from Bussmann is a fuse with a 250 A rating. 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 170M4659 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 170M4659 is a high speed square body semiconductor fuse, US style (bolted tags), size 1, 250 A, 690 V / 700 V IEC, -FKE/- type K indicator for microswitch. 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	-FKE/- type K indicator for microswitch - microswitch ordered separately
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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