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A50P504 - Fast-Acting Fuse 50A 500VAC (Holder Style)

United Fuses
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The A50P504 is a fast-acting semiconductor protection fuse designed for safeguarding DC drives and uninterruptable power supplies from short circuit damage. This current-limiting fuse is rated for 50 amps, 500 volts AC, and 450 volts DC, with a low I2t to minimize component damage and controlled arc voltage to reduce stress during clearing. It features a holder-style mounting configuration and weighs 5.19 lb. The fuse is a UL Recognized Component (UL File 60314) and is part of the A50P Amp-Trap Form 101 series. Typical industrial applications include DC drives, UPS systems, and semiconductor protection.

Key Features & Specifications
  • Amperage: 50A
  • Voltage Rating AC: 500VAC
  • Voltage Rating DC: 450VDC
  • Fast acting (fast blow) response time
  • Current limiting fuse
  • Mounting type: Holder style
  • Interrupt rating: 100kA at 500VAC, 79kA at 450VDC
  • Series: A50P Amp-Trap Form 101
  • UL Recognized Component (UL File 60314)
  • Low I2t for reduced damage on short circuit
  • Controlled arc voltage for reduced component stress
  • Weight: 5.19 lb