Mersen A70QS10-22F - 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 10 amps 22x58 ferrule.
Mersen

A70QS10-22F

Alternate Item Number: 782001358839

UPC: 782001358839

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Overview

The Mersen A70QS10-22F Premium Amp-trap French Cylindrical Semiconductor Fuse represents a significant advancement in overcurrent protection for critical industrial applications. As an integral part of the highly regarded A70QS product line, this fuse is engineered to deliver exceptional performance and reliability where system uptime and component integrity are paramount. This specific model, the A70QS10-22F, is a 10 Ampere fuse featuring a standard 22x58mm ferrule size, designed to meet stringent IEC rating standards. Engineered for demanding environments, the A70QS10-22F boasts impressive interrupting ratings, crucial for safeguarding sensitive semiconductor devices. It is rated for 690 Volts AC with an exceptional 200kA interrupting capacity, providing robust protection against severe short-circuit events. Furthermore, it extends its protective capabilities to DC circuits, rated at 700 Volts DC with a 100kA interrupting capacity at a 10ms time constant. This dual AC/DC capability makes it a versatile choice for a wide array of power electronics systems. A standout feature of this premium fuse is its specialized 890 VDC rating, specifically tailored for capacitor discharge applications. This rating allows for effective protection during the rapid energy release characteristic of capacitor banks, with a time constant as short as 2.5ms. This capability is vital for applications involving pulsed power systems, high-frequency converters, and other scenarios where rapid discharge protection is essential. The A70QS10-22F utilizes a solid-fill construction, a hallmark of Mersen's premium fuse technology, which enhances its thermal management and overall durability. This construction method contributes to superior I²t performance, meaning it offers improved energy limitation during fault conditions. Lower I²t values translate to less energy being passed through the protected circuit during a fault, thereby minimizing damage to sensitive components like diodes, SCRs, and IGBTs. This enhanced protection directly contributes to improved system performance and extended equipment lifespan. Key applications for the Mersen A70QS10-22F include: * Small inverter drives and variable frequency drives (VFDs) * Uninterruptible Power Supply (UPS) systems * DC power supplies * Motor control centers * Renewable energy systems (e.g., solar inverters) * Industrial automation equipment * Capacitor banks for power factor correction and energy storage With all ampere ratings available with an optional striker mechanism, the A70QS10-22F can be integrated into fuse monitoring systems, providing immediate visual or electrical indication of a blown fuse. This feature is critical for rapid troubleshooting and maintenance in complex industrial setups. Mersen's commitment to quality and innovation is evident in the A70QS series, offering engineers and maintenance professionals a trusted solution for safeguarding their valuable equipment. Choosing the Mersen A70QS10-22F ensures a high level of protection, reliability, and performance for your most critical power electronic applications.
  • Premium Amp-trap French Cylindrical Semiconductor Fuse (SKU: A70QS10-22F)
  • 10A, 22x58mm ferrule size
  • IEC Rated: 690VAC, 200kA interrupting; 700VDC, 100kA interrupting (10ms)
  • Specialized 890VDC rating for capacitor discharge (up to 2.5ms)
  • Superior I²t for enhanced semiconductor protection in inverter drives and UPS systems

Specifications

Amperage Rating
10 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
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.