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EP.MERSEN.COM MF 9 M F © 2018 Mersen. All rights reserved. Mersen reserves the right to change, update, or correct, without notice, any information contained in this datasheet. GFN midget indicating fuses are available in ratings from 1/10 through 30A. These time-delay fuses have built-in blown fuse indicators which pop out at the end of the fuse to visually indicate when the fuse has operated to open the circuit. Indicators may be used to trip a switch for remote as well as visual annunciation. (Not for Branch Circuit Protection). FEATURES/BENEFITS:

  • Pin indicator provides visual indication of open fuse or actuates switch for remote signaling
  • Numerous ratings for a wide variety of applications
  • 12 second time-delay at 200% rating
  • Can be used with UltraSafe™ fuse holders (1/10 - 10A)
  • 1 1/2" x 13/32" (10 mm x 38 mm) dimensions CATALOG NUMBERS (AMPS) RATINGS:
  • Volts: 250VAC (0.1 - 10A) 125VAC (12 - 15A) 32VAC (20 - 30A)
  • Amps: 1/10 to 30A 10kA I.R., 125VAC, 0.1-15A 10kA I.R., 32VAC, 20-30A HIGHLIGHTS:
  • Pin indicator
  • Time-delay
  • 12-30A double body APPLICATIONS:
  • For supplemental protection of circuits where time-delay and blown fuse indication are required, such as solenoid circuits or control circuits. APPROVALS:
  • UL Listed to standard 248-14 (1/10 to 15A) File E33925
  • CSA Certified to Standard C22.2 No. 248.14 (1/10 to 15A) GFN1/10 GFN4/10 GFN1 - 1/4 GFN2- 1/4 GFN3- 1/2 GFN6 GFN1 2* GFN1/8 GFN1/2 GFN1 -4/10 GFN2- 1/2 GFN4 GFN6- 1/4 GFN15* GFN15/100 GFN6/10 GFN1 - 1/2 GFN2-8/10 GFN4- 1/2 GFN7 GFN20* GFN2/10 GFN8/10 GFN1 -6/10 GFN3 GFN5 GFN8 GFN25* GFN1/4 GFN1 GFN1 -8/10 GFN3-2/10 GFN5-6/10 GFN10 GFN30* GFN3/10 GFN1 - 1/8 GFN2 *Note: 1 2-30A is a double barrel fuse construction GFN Time-Delay Midget Fuses MIDGET, PC MOUNT & MINIATURE FUSES Catalog Number Number of Poles UltraSafeTM Indicating Fuse Holder Screw Connector Pressure Plate Connector Copper Box Connector Adder 30310 30320 30350

1 USM1I 30311 3 0 321 30351

2 USM2I 3 0312 30322 30352

3 USM3I 3 0313 30323 30353

3 USFM10I

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