Littelfuse POWR-SPEED High-Speed Fuses

Littelfuse POWR-SPEED High-Speed Fuses are tailored for performance and efficiency to better safeguard important power semiconductors against short circuits. POWR-SPEED high-speed semiconductor fuses are specifically designed to have the short-circuit properties necessary for protecting semiconductor devices, such as low energy let-through (l²t), low peak currents (I^PEAK), low-arc voltage, and high heat dissipation. The POWR-SPEED high-speed fuses are dependable and fast-acting, extending the life of the equipment. These POWR-SPEED high-speed semiconductor fuses feature an operating temperature range from -55°C to +125°C. Typical applications included power supplies, battery racks, inverters, processing industries, and electric vehicle charging stations.

Features

• All ratings published on the label:
  • Eliminates confusion when replacing and inspecting
• Extreme current limiting:
  • Reduces peak let-through current and let-through energy (l²t) to protect semiconductor components and devices
• Flush end terminals:
  • Flexibility to mount directly to bus-bar
• High DC interrupting rating:
  • Achieves an interrupting rating of 150kA for applications that require more power
• Low watt loss:
  • Saves energy wasted during operation
• Resilient labeling:
  • Laser etched resistance values eliminate labels that erode over time
• Silicone sealant:
  
  • Prevents sand leakage and improves reliability

Applications

• Battery Racks:
  • Battery management system
  • DC common bus
• Cranes and heavy-lifting equipment
• Factories
• Food and beverage
• Furnace/smelting equipment
• High-power stack assemblies
• Inverters:
  • AC output
  • DC input side
• Power supplies
• Processing industries
• Pulp and paper
• Rubber extrusion equipment
• Uninterrupted Power Supply (UPS)
• Variable frequency drives
• Wastewater treatment plants
  

Technical Specifications