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Mersen M076072 - High performance square body fuse-link Protistor® Size 93 aR 1500VAC IEC 350A With Striker DIN 140 Blades

Mersen M076072 High performance square body fuse-link Protistor® Size 93 aR 1500VAC IEC 350A With…

Alternate Item Number: PC93UF15C350D4F


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen Protistor® Size 93 aR fuse-link (SKU: M076072) is a high-speed semiconductor protection fuse designed for critical AC power conversion applications. Rated at 1500VAC (IEC) and 350A, this square-body fuse-link delivers ultra-fast response with a breaking capacity of 126 kA, ensuring maximum protection for sensitive semiconductor devices including SCRs, diodes, thyristors, GTOs, and IGBTs. Its construction features pure silver die-cut elements embedded in solidified sand, which precisely controls arcing characteristics to achieve low I²t values (pre-arcing 17 kA²s, clearing 140 kA²s) and superior cycling capability. The fuse-link incorporates silver-plated contact surfaces for optimal conductivity and non-magnetic hardware to prevent electromagnetic interference. Equipped with a low-voltage trip-indicator, it enables remote status monitoring via a field-mountable microswitch without interrupting service. With a power dissipation of 86W at rated current, this UL/CSA-recognized fuse-link meets IEC 60269-4 (aR class) standards for semiconductor protection. The DIN 140 blade configuration ensures compatibility with standard mounting systems, while the striker mechanism provides visual and mechanical indication of fuse operation.
  • Rated 1500VAC (IEC) / 350A with 126 kA breaking capacity
  • Ultra-fast aR class response per IEC 60269-4 for semiconductor protection
  • Square body design with silver-plated contacts and non-magnetic hardware
  • Low I²t values (17 kA²s pre-arcing, 140 kA²s clearing) minimize semiconductor damage
  • DIN 140 blades with striker mechanism for visual/mechanical status indication
  • Trip-indicator enables remote monitoring via field-mountable microswitch
  • Power dissipation 86W at rated current; UL/CSA recognized

Specifications

AC Voltage Rating
1500 V
Amperage Rating
350 A
Application
Protection of rectifiers, inverters, DC drivers, UPS systems, reduces voltage motor starters and other equipment in globally accepted aplications.
Brand Name
Mersen
Breaking Capacity
126 kA
Case
Ceramic
Clearing It
140 kA²s
Connection
DIN Type Blades
Connection Type
DIN 140 Blades
Current Rating
350 A
Material
Silver
Mounting
Bolted
Power Dissipation
86 W
Pre Arcing It
17 kA²s
Series
Protistor
Size
6.54 x 2.93 x 3.37 in
Size
166 x 74.5 x 85.5 mm
Size
Size 93
Special Features
Extremely fast acting Current limiting Very low l²t Worldwide acceptability Superior cycling ability Choice of mounting styles Broad range of ampere rating
Standard
IEC 60269.4
Sub Brand
Protistor®
Type
High performance square body fuse-links AC protection
Type Of Indicators
Striker
Voltage Rating
1500 V
Voltage Rating
1500 VAC
Wattage
137 W
Package Dimensions (L x W x H)
6.54 in x 2.93 in x 3.37 in
Package Dimensions (L x W x H)
166 mm x 74.5 mm x 85.5 mm
Package Weight (Imperial)
3.968 lb
Package Weight (Metric)
1.800 kg
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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

Does this fuse-link include a striker mechanism?

Yes, the fuse-link features a striker mechanism for visual and mechanical status indication.

What voltage rating does this fuse-link support?

The Mersen Protistor Size 93 aR fuse-link is rated for 1500VAC (IEC) operation.

What is the interrupting rating of this fuse-link?

The fuse-link has a breaking capacity of 126 kA, providing high fault current protection.

What is the power dissipation at rated current?

The power dissipation at rated current is 86W for this fuse-link.

What is the pre-arcing I²t value?

The pre-arcing I²t value is 17 kA²s, ensuring fast response to overcurrent conditions.

What is the clearing I²t value?

The clearing I²t value is 140 kA²s, indicating high interrupting capability.

What semiconductor devices does this fuse protect?

The fuse-link protects SCRs, diodes, thyristors, GTOs, and IGBTs in power conversion equipment.

Is remote monitoring possible with this fuse-link?

Yes, the low-voltage trip-indicator can activate a field-mountable microswitch for remote status monitoring.

What applications is this fuse-link suitable for?

The fuse-link is designed for inverters, motor drives, UPS systems, and similar power conversion equipment operating at 690V or less.

What standards does this fuse-link comply with?

The fuse-link complies with IEC 60269-4 (aR class) and is UL/CSA recognized.

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.