Mersen A130UD73TTI500 D301050 500A aR Fuses (3 Pieces)

Mersen Protistor® Semiconductor Fuse A130UD73TTI500

The Mersen A130UD73TTI500 is an ultra-rapid (aR Class) Protistor® square-body fuse, expertly designed to provide exceptional protection for power semiconductors, including diodes, thyristors, and IGBTs. It is characterized by very low I²t (Joule integral) and a high interrupting rating, making it suitable for protecting sensitive components in demanding applications such as rectifiers, inverters, DC drives, UPS systems, and reduced voltage motor starters. This fuse is equipped with a visual Type T trip indicator for easy identification of fuse status.

Key Features & Specifications:

• Brand: Mersen
• Product Type: Semiconductor Protection Fuse
• Series: Protistor® Square Body Fuses
• Part Number: A130UD73TTI500
• Item Number: D301050
• Application: Protection of power semiconductors and equipment (Diodes, Thyristors, GTOs, IGBTs, Drives, Rectifiers, UPS, etc.)
• Fuse Class: aR (Ultra-Rapid)
• Indicator: Visual Trip Indicator (Type T)
• Mounting: Bolt-in / Bolted terminals (1/2"-13 unified coarse threaded terminals)

Technical Data:

• Amperage Rating: 500A
• Voltage Rating AC: 1250V (IEC), 1300V (UL)
• Interrupt Rating AC: 200 kA (Some sources list 126kA)
• Interrupt Rating DC: 100 kA
• I²t (Pre-arcing): 44 kA²s
• I²t (Total Clearing): 360 kA²s
• Fuse Size: 73
• Power Dissipation: 112 W
• Product Weight: 1.25 kg
• Body Material: Ceramic
• Compliances:
  • IEC 60269-4
  • UL Recognized Component (File E60314)
  • CSA Component Acceptance