MERSEN | A50P100-4
Amp-Trap A50P semiconductor protection fuse, 100 Amps, 500V; round body, high-speed fuse-links, AC protection

MFR PART #  A50P100-4
PART #  559178
Minimum 1 Each
Standard Lead Time: 3-7 Weeks


A50P Amp-trap Form 101 Semiconductor Protection fuses were developed for DC drives, uninterruptable power supplies and similar applications requiring better protection (lower I2t) and superior reliability. The A50P is typically used for replacement.


Protection of DC drives, UPS and other equipment of 500 volts or less.


  • Low I2t minimizes damage to protected components on short circuit
  • Controlled arc voltage reduces stress to circuit components during fuse clearing
  • Choice of mounting types helps in equipment design
  • Very fast acting
  • Current limiting

Specification Description

Volts: 500 V AC, 450V DC
Amps: 10 to 1200A (AC), 35 to 1000A (DC)
I.R.: 100kA I.R. AC, 79kA I.R. DC
L/R: 10ms
UL Recognized Component UL File 60314
AC: UL Guide No. JFHR2 (10-800A)
DC: UL Guide No. JFHR2 (35-800A)


UNSPSC Code 39121600

Spec Sheet

Spec Sheet

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