Eaton Bussmann 170L2244 High-Speed Square Body Fuse, 50A 660V AC, DIN 000 gR - Pack of 6

Bussmann series 170L High-Speed Square Body Fuse - Eaton

The Eaton Bussmann 170L2244 is a high-performance square body fuse specifically engineered for the protection of sensitive semiconductor devices. As a gR-class fuse, it provides full-range protection, capable of clearing both low-level overloads and high-level short-circuit faults. This 50A fuse is designed with a DIN 000 size form factor, featuring blade terminals for easy integration into standardized industrial fuse holders and disconnects.

Designed to operate at 660V (IEC), this fuse is characterized by its exceptionally low I²t (thermal energy let-through) and low power loss, which are critical for maximizing the efficiency and lifespan of power electronic components such as diodes, thyristors, and IGBTs. Its high-speed clearing capability ensures rapid isolation of faults, minimizing potential damage to expensive semiconductor assemblies in modern power conversion equipment.

Technical Specifications:

• Manufacturer: Eaton
• Brand: Bussmann series
• Catalog Number: 170L2244
• Fuse Type: High-Speed / Semiconductor Protection
• Body Style: Square Body with Blade Terminals
• Size: DIN 000
• Amperage Rating: 50 A
• Voltage Rating: 660 Vac (IEC) / 700 Vac (UL)
• Utilization Category: gR (Full-range semiconductor protection)
• Interrupting Rating: 200kA RMS Sym.

Key Features:

• High-Speed Response: Optimized to react instantly to overcurrent events, providing superior protection for power semiconductors.
• Low Power Loss: Engineered for energy efficiency and reduced heat dissipation within electrical enclosures.
• Superior Current Limitation: Specifically limits peak let-through energy (I²t) to protect downstream electronic components.
• Standardized Mounting: DIN 000 blade format ensures compatibility with a wide range of global industrial mounting hardware.

Application: The 170L2244 is ideal for use in power rectifiers, UPS (Uninterruptible Power Supplies), variable speed drives (VFDs), soft starters, and other solid-state power conversion applications where high-speed fault isolation is mandatory.