170M4761 Bussmann - Fuse

170M4761 Description

Rated at 700 V and 350 A, the Bussmann 170M4761 is a fuse. 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 170M4761 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 170M4761 is a high speed square body semiconductor fuse, US style (bolted tags), size 1, 350 A, 690 V / 700 V IEC, -FKE/115 type K indicator for microswitch (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	350 A RMS
Rated voltage	690 V / 700 V IEC
Body size	1
Style	US style (bolted tags)
Indicator	-FKE/115 type K indicator for microswitch (115 mm version) - microswitch ordered separately
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)
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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