170M6769 Bussmann - Fuse

170M6769 Description

170M6769 is a 1600 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 170M6769 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 170M6769 is a high speed square body semiconductor fuse, US style (bolted tags), size 3, 1600 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	1600 A RMS
Rated voltage	690 V / 700 V IEC
Body size	3
Style	US style (bolted tags)
Indicator	-FKE/115 type K indicator for microswitch (115 mm version) - microswitch ordered separately
Pre-arc I²t	580000 A²s
Clearing I²t at 660 V (power factor 15%)	3900000 A²s
Watts loss at rated current	160 W
Interrupting rating	200 kA RMS symmetrical (estimated 300 kA)
Overall length (B)	155 mm
Mounting centres (C1 / C2)	125 / 97 mm
Body A x D x E	51 x 92 x 76 mm

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