Eaton (Bussmann) 170M7090 High‑Speed Square‑Body Fuse — 2200A, 1000 V AC aR Semiconductor Protection, Size 4 (BKN/95 Type K) — Pack of 3

Product overview The Eaton (Bussmann) 170M7090 is a high‑speed square‑body fuse designed for semiconductor protection and heavy‑duty power applications. Engineered for rapid clearing of faults in power electronics, this Class aR fuse is suitable for protecting rectifiers, converters, DC drives and semiconductor devices. This listing is for a pack of three (3) fuses.

Key specifications

• Manufacturer: Eaton (Bussmann)
• Part / Catalog number: 170M7090 (Global Catalog: 170M7090)
• Product type: High‑speed square‑body fuse (Class aR)
• Application: Semiconductor protection, power converters, DC drives, rectifiers
• Amperage rating: 2200 A
• Voltage rating: 1000 V (AC preferred when used in AC systems)
• Utilization category / Class: aR — Class aR (semiconductor protection)
• Fuse size / Construction size: 4
• Fuse type / Indicator: BKN/95 Type K indicator; non‑indicating per supplied data
• Packaging: Standard packaging, pack quantity: 3 pcs
• Certifications & compliances: IEC, RoHS compliant
• Dimensions (L×W×H): 118.3 mm × 103 mm × 95 mm (provided)
• UPC / EAN: UPC 051712495868, EAN 5996516005293

Features & benefits

• High continuous current rating (2200 A) for large power systems and DC/AC bus protection.
• Class aR characteristics tailored for fast clearing of faults affecting semiconductor devices.
• Square‑body construction supports robust mounting and electrical connections in industrial installations.
• IEC certified and RoHS compliant for global industrial use.

Installation & safety notes

• Confirm physical compatibility with fuse holders and mounting hardware prior to installation.
• Verify system coordination and time‑current characteristics against protected equipment (consult Eaton datasheet).
• Use rated voltage 1000 V reference for system selection; ensure appropriate system derating per application conditions.

Documentation & support

• For full electrical characteristics, time‑current curves and installation guidance, refer to Eaton (Bussmann) datasheet for part 170M7090 or contact Eaton technical support.