Mersen A70QS100-22FI - 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 I²t for improved protection and performance. 690 Volts 100 amps 22x58 ferrule w/striker.
Mersen

A70QS100-22FI

Alternate Item Number: 782001142292

UPC: 782001142292

Contact for Pricing

Overview

The Mersen A70QS100-22FI Premium Amp-trap French Cylindrical Semiconductor Fuse represents a significant advancement in overcurrent protection for demanding industrial applications. As an extension of the highly regarded A70QS product line, this fuse is engineered to deliver superior performance and reliability, safeguarding critical semiconductor devices. This specific model, A70QS100-22FI, features a robust 22x58mm ferrule design with an integrated striker mechanism, facilitating secure and efficient installation in a wide array of equipment. Its IEC rating of 690VAC with an impressive 200kA interrupting capability ensures robust protection against short-circuit events in AC systems. For DC applications, it offers a substantial 700VDC rating with a 100kA interrupting capacity at a 10ms time constant, making it ideal for systems requiring high DC fault current handling. Further enhancing its versatility, the A70QS100-22FI is also rated for 890VDC in capacitor discharge applications, with a time constant of up to 2.5ms. This capability is crucial for protecting power electronic circuits that experience rapid energy discharge from capacitors, such as in high-power inverters and energy storage systems. Key benefits and specifications include: * **Superior I²t Performance:** Engineered for exceptionally low I²t values, this fuse provides enhanced protection for sensitive semiconductor components by limiting the energy let-through during fault conditions. This translates to improved equipment longevity and reduced risk of catastrophic failure. * **High Interrupting Ratings:** With 200kA at 690VAC and 100kA at 700VDC, the A70QS100-22FI is designed to safely interrupt even the most severe fault currents, protecting personnel and equipment. * **Versatile Voltage Ratings:** Accommodates both AC and DC applications, including specialized capacitor discharge circuits, offering a comprehensive protection solution. * **Robust Construction:** Solid-fill construction and high-quality materials ensure durability and consistent performance in harsh industrial environments. * **Striker Mechanism:** The integrated striker provides a clear visual indication of fuse operation and can be used to activate auxiliary signaling devices, enhancing system monitoring and safety. Typical applications for the Mersen A70QS100-22FI fuse include small inverter drives, uninterruptible power supply (UPS) systems, DC power supplies, and other power electronic equipment where reliable semiconductor protection is paramount. Mersen's commitment to quality and innovation ensures that the Amp-trap product line continues to set industry standards for performance and safety. When selecting fuses for critical power systems, choosing a reputable manufacturer like Mersen and a product line known for its advanced capabilities, such as the A70QS series, is essential for ensuring operational continuity and safeguarding investments.
  • Mersen A70QS100-22FI Premium Amp-trap French Cylindrical Semiconductor Fuse
  • IEC Rated: 690VAC, 200kA Interrupting; 700VDC, 100kA Interrupting (10ms)
  • Capacitor Discharge Rating: 890VDC up to 2.5ms time constant
  • 22x58mm ferrule with striker for secure installation and indication
  • Superior I²t for enhanced semiconductor protection in inverter drives and UPS systems

Specifications

Amperage Rating
100 A
Application
Small inverters, UPS systems, Solid State Relays, motor drives and similar 700V or less equipment
Brand Name
Ferraz Shawmut
Connection
Ferrule
Mounting
Clip
Special Features
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 Ferrule mount for design versatility Very low I2t 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
Standard
UL Recognized Component CSA Certified IEC 269-4 Compliance
Type
North American Round Style
Type Of Indicators
Striker
Voltage Rating
690 VAC
Package Dimensions (L x W x H)
2.28 IN x 0.86 IN x 0.86 IN
Package Dimensions (L x W x H)
5.7912 cm x 21.844 mm x 21.844 mm
Package Weight (Imperial)
0.100 L
Package Weight (Metric)
0.045 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.