Mersen A30QS150-4L - A30QS Amp-trap Semiconductor Protection fuses are intended for the protection of Power Semiconductors such as Diodes, Phase Control SCR's and other power Semiconductor devices. The A30QS is recommended for new applications providing solutions for your critical protection needs at 300V and less semiconductors 300 Volts 150 Amps type 4L connection.
Mersen

A30QS150-4L

Alternate Item Number: 782001141172

UPC: 782001141172

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Specification Sheet

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Overview

The Mersen A30QS150-4L Amp-trap Semiconductor Protection Fuse is a critical component engineered for the robust safeguarding of sensitive power semiconductor devices. This high-performance fuse is specifically designed to protect critical components such as diodes, phase control SCRs (Silicon Controlled Rectifiers), and other advanced power semiconductor technologies. It provides essential overcurrent protection, ensuring the integrity and longevity of these vital electronic elements in demanding industrial and power electronics applications. Engineered for reliability and precision, the A30QS series, including the A30QS150-4L, is the recommended choice for new applications requiring dependable protection for semiconductors operating at voltages of 300V and below. This fuse offers a superior solution for mitigating the risks associated with short circuits and other electrical faults that could otherwise lead to catastrophic damage to expensive semiconductor equipment. Its design prioritizes fast-acting interruption, minimizing the duration of fault currents and thereby reducing thermal stress on protected devices. Key specifications of the Mersen A30QS150-4L include a voltage rating of 300 Volts and a substantial current rating of 150 Amps. The '4L' designation signifies a specific connection type, crucial for ensuring proper integration within existing electrical systems and equipment designs. This fuse is built to meet stringent industry standards, offering peace of mind to engineers and maintenance professionals who rely on Mersen's established reputation for quality and innovation in electrical protection. Applications for the A30QS150-4L are widespread across various sectors, including: * **Industrial Power Supplies:** Protecting rectifiers and inverters in heavy-duty machinery and manufacturing equipment. * **Renewable Energy Systems:** Safeguarding power conversion components in solar inverters and wind turbine converters. * **Motor Drives:** Ensuring the protection of SCRs and diodes in variable speed drives for precise motor control. * **Uninterruptible Power Supplies (UPS):** Providing reliable protection for semiconductor components in critical backup power systems. * **Electric Vehicle Charging Infrastructure:** Protecting power electronics in high-capacity charging stations. When selecting semiconductor protection fuses, factors such as voltage rating, current rating, interrupting capacity, and connection type are paramount. The Mersen A30QS150-4L addresses these needs with its specific 300V, 150A rating and 4L connection, making it a direct and effective solution for many system designs. Mersen's commitment to advanced fuse technology ensures that users receive products that not only meet but often exceed the demanding requirements of modern power electronics. By choosing the A30QS150-4L, you are investing in the stability, safety, and operational continuity of your critical semiconductor-based systems, backed by the expertise of a global leader in electrical protection.
  • Designed for protection of Power Semiconductors (Diodes, SCRs, etc.)
  • Recommended for new applications at 300V and less
  • Voltage Rating: 300 Volts
  • Current Rating: 150 Amps
  • Connection Type: 4L

Specifications

Amperage Rating
150 A
Application
Protection of AC/DC drives, UPS and other equipment of 300 volts or less
Brand Name
Ferraz Shawmut
Connection
Blade
Connection Type
4L
Current Rating
150 A
Mounting
Bolted
Series
A30QS
Special Features
300VAC and 300VDC rated Low I 2 t minimizes damage to protected component on short circuit. Controlled arc Voltage reduces stress to circuit components during fuse clearing. Choice of mounting types helps in equipment design
Standard
UL Recognized Component Guide JFHR2 Some Ratings RoHS Compliant
Type
North American Round Style
Voltage Rating
300 VAC
Package Dimensions (L x W x H)
2.2 IN x 0.92 IN x 0.92 IN
Package Dimensions (L x W x H)
5.588 cm x 23.368 mm x 23.368 mm
Package Weight (Imperial)
0.180 L
Package Weight (Metric)
0.082 kg
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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.

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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.