Page 45 - Ferraz semiconductor UL

Semiconductor (A) fuses
Semiconductor (AC) fuses

American Round Fuses

Other American Fuses

A70QS

French Cylindrical
Semiconductor Protection Fuses

These Premium Amp-trap French Cylindrical Semiconductor Fuses are
®
an extension of the popular A7OQS 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
2
include small inverter drives and UPS systems, with superior l t for
improved protection and performance.
Features/Benefits

• International 14x51mm (2"x9/16") and 22x58mm (2-1/4"x13/16") sizes for worldwide acceptance
• Ferrule mount up to 100A for design versatility
2
• Very low I t for improved semiconductor protection
• 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
• Superior cycling ability for longer life on difficult cyclic loading applications
• aR characteristic for semiconductor short- circuit protection

Ratings Approvals Highlights Applications

• AC: 10-100A • UL Recognized • 14 x 51 and 22 x 58 • Small inverters,
690VAC, 200kA I.R. Component sizes UPS systems,
• 690VAC IEC Rated motor drives and
• IEC tested at 760VAC • CSA Certified
(760VAC Max.) similar 700V or
• 700VDC rated less equipment
• DC: 700VDC, 100kA I.R • IEC 269-4 Compliance
• Superior Cycling Ability
L/R=10ms
• Low Watts Loss
890VDC, 127kA I.R.
• Optional Striker
L/R=2.5ms
forVisual/Remote
Indication

Catalog Numbering System

A70 QS 20 14F I
Mounting: Amp-trap ®
Fuse Family
• US14 or US22 “finger-safe” IP 20 grade holders,
DIN rail or screw mount, with striker actuated Style/Design
microswitch indication available.
• 703 Series open fuse blocks Amperes*

Size: 14F = 14 x 51 mm
22F = 22 x 58 mm
Optional Striker I

SCAC46 12/04