170M4619 Bussmann - Fuse
170M4619 Description
Rated at 550 V and 900 A, the Bussmann 170M4619 is a fuse. It protects power semiconductors such as diodes, thyristors and IGBTs from short-circuit damage in drives, rectifiers and UPS systems.
USComponent has been supplying power semiconductors since 2001, including discontinued and hard-to-find part numbers. Send us an RFQ for the 170M4619 and we will reply with price, condition and lead time. Please check the manufacturer's datasheet to confirm ratings, package and pin-out before you order.
Summary of Features
Bussmann 170M4619 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/- without indicator.
Target Applications
Bussmann 170M4619 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 170M4619 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/- 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 | 900 A RMS |
| Rated voltage | 550 V IEC (UL / CSA status: consult Bussmann) |
| Body size | 1 |
| Style | US style (bolted tags) |
| Indicator | -FU/- without indicator |
| 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) | 136 mm |
| Mounting centres (C1 / C2) | 104 / 78 mm |
| Body A x D x E | 50 x 69 x 53 mm |
Technical document (PDF) | Request a quote for 170M4619 (reply within 24 hours)

