Mersen A70QS32-14F - 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 32 amps 14x51 ferrule.
Mersen

A70QS32-14F

Alternate Item Number: 782001142032

UPC: 782001142032

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Overview

The Mersen A70QS32-14F is a Premium Amp-trap French Cylindrical Semiconductor Fuse, an advanced extension of the established A70QS product line. This solid-fill fuse features a 14x51mm ferrule mount and is IEC rated for 690VAC with a 200kA interrupting rating at a 10ms time constant. It also provides 700VDC protection with a 100kA interrupting rating at a 10ms time constant, and is specifically rated for capacitor discharge applications at 890 VDC with a 2.5ms time constant. Designed for superior semiconductor protection, the A70QS32-14F offers a very low I²t, crucial for safeguarding sensitive electronic components. Its 'aR' characteristic ensures effective short-circuit protection. This fuse is ideal for applications such as small inverter drives, UPS systems, and motor drives operating at 700V or less. The 14x51mm international size ensures worldwide acceptance and compatibility. Key features include superior cycling ability for enhanced longevity under difficult cyclic loading conditions and low watts loss. The A70QS32-14F is UL recognized as a component (File E76491), CSA Certified, and complies with IEC 269-4. All ampere ratings in this series are available with an optional striker for visual or remote indication. Specifications: - SKU: A70QS32-14F - Manufacturer: Mersen - Fuse Size: 14x51mm (2"x9/16") - AC Voltage Rating: 690VAC (IEC rated, tested at 760VAC, usable up to 750VAC in US) - DC Voltage Rating: 700VDC (for L/R ≤10ms) - Capacitor Discharge Rating: 890 VDC (up to 2.5ms time constant) - Current Rating: 32A - Interrupting Rating (AC): 200kA at 10ms time constant - Interrupting Rating (DC): 100kA at 10ms time constant - Characteristic: aR (semiconductor protection) - Features: Solid-fill, ferrule mount, low I²t, superior cycling ability, low watts loss, optional striker - Approvals: UL recognized component, CSA Certified, IEC 269-4 compliant - Applications: Small inverter drives, UPS systems, motor drives, 700V or less equipment. Choose the Mersen A70QS32-14F for reliable, high-speed protection of semiconductor devices in critical industrial systems.
  • Mersen A70QS32-14F Premium Amp-trap French Cylindrical Semiconductor Fuse
  • IEC Rated: 690VAC (200kA IR), 700VDC (100kA IR at 10ms)
  • Capacitor Discharge Rating: 890 VDC (up to 2.5ms time constant)
  • Size: 14x51mm (2"x9/16") Ferrule Mount
  • Ideal for small inverter drives, UPS systems, and motor drives

Specifications

Amperage Rating
32 A
Application
Small inverters, UPS systems, Solid State Relays, motor drives and similar 700V or less equipment
Brand Name
Ferraz Shawmut
Connection
Ferrule
Connection Type
14x51 Ferrule
Connection Type
Ferrule
Current Rating
32A
Current Rating
32 A
Material
Semiconductor
Material
Solid-fill
Mounting
Clip
Series
A70QS
Size
14X51MM
Size
14x51 mm
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
Voltage Rating
690VAC/700VDC/890VDC
Voltage Rating
690 VAC / 700 VDC / 890 VDC
Package Dimensions (L x W x H)
2 IN x 0.55 IN x 0.55 IN
Package Dimensions (L x W x H)
5.08 cm x 13.97 mm x 13.97 mm
Package Weight (Imperial)
0.050 L
Package Weight (Metric)
0.023 kg
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 40 amps 14x51 ferrule.

A70QS40-14F

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 40 amps 14x51 ferrule.
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 32 amps 22x58 ferrule.

A70QS32-22F

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 32 amps 22x58 ferrule.
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 32 amps 22x58 ferrule w/striker.

A70QS32-22FI

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 32 amps 22x58 ferrule w/striker.
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 15 amps.

A70QS15-22F

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 15 amps.
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 25 amps 14x51 ferrule.

A70QS25-14F

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 25 amps 14x51 ferrule.

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.