Ferraz Shawmut A70QS40-14F 14 x 51 mm 40 Amp 700 Volt Semiconductor Protection Fuse
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Manufacturer Mersen
Mfg Catalog # A70QS40-14F
North Coast Part # 15284


  • 690V IEC rated, tested at 760VAC; can be used up to 750VAC in U.S.
  • 700VDC rated for dc protection of equipment with L/R <= 10ms/c
  • Ferrule mount for design versatility
  • Very low I2t for improved semiconductor protection
  • Superior cycling ability for longer life on difficult cyclic loading applications
  • International 14 x 51mm (2 In x 9/16 In) and 22 x 58mm (2-1/4 In x 13/16 In) sizes for worldwide acceptance

Product Details

  • Lead Free: Consult Technical Services
  • Mounting: Clip
  • Body Material: Ceramic
  • Body Style: Cylindrical Non Rejection
  • Applications: Small inverters, UPS systems, Solid State Relays, motor drives and similar 700V or less equipment
  • CE conformity: Consult Technical Services
  • UL Certification: E76491 JFHR2.E76491
  • DC Voltage: 700 VDC
  • Connection Terminal Type: Ferrule
  • Standards: UL Recognized Component CSA Certified IEC 269-4 Compliance
  • CSA Certification: 1422-30 1422-30
  • AC Voltage: 690 VAC
  • Ampere Range: 10 to 800 A
  • ROHS Compliant: Consult Technical Services
  • I.R DC: 100 kA
  • I.R. AC: 200 kA
  • Speed / Characteristic: High-Speed

Performance Data

CAD & Outline Drawings

CAD Drawings


Data Sheets


UPC 78200114204
Family Brand Name Ferraz Shawmut
Item Long Description These Premium Amp-trap French Cylindrical Semiconductor Fuses are an extension of the popular A70QS product line. They are solid-fill 14mm and 22mm fuses IEC rated 690VAC, 200kA Interrupting and 700VDC, 100kA interrupting at 10ms time constant. In addition, these fuses have an 890 VDC rating for capacitor discharge applications up to 2.5ms time constant. All ampere ratings are available with a striker. Applications include small inverter drives and UPS systems, with superior It for improved protection and performance.
GTiN 00782001142049
Voltage 690 Volt
Type High Speed, Form 101, Fast Acting
Applications For Small Inverters, UPS Systems, Solid State Relays, Motor Drives and Similar 700 V or Less Equipment
Mounting Type Bolt-In
Body Material Ceramic
Construction GMG
Contact Material Tin-Plated Brass
TC Connection Ferrule
Amperage 10-800 Amp
Response Time 10 Millisecond
Blade Dimensions 14 mm dia x 51 mm L
Sub Brand Amp-Trap

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