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Mersen C301026 - Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 200A With Striker Flush ends UNC threads
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Mersen C301026 Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 200A With…

Alternate Item Number: A130UD71TTI200


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Specification Sheet

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Overview

The Mersen C301026 Protistor® square body fuse-link delivers ultra-fast semiconductor protection for high-voltage power conversion systems. Designed for 1250VAC (IEC) and 1300VAC (UL) applications, this aR-class fuse operates at 200A with a high interrupting rating of 100-150 kA, ensuring reliable fault interruption in demanding environments. Engineered for diodes, thyristors, and IGBT devices, the C301026 features die-cut fuse elements embedded in solidified sand to optimize arcing control, reducing I²t for superior semiconductor safety. Key specifications include flush ends with UNC threads for secure mounting, silver-plated contact surfaces for low resistance, and non-magnetic hardware to prevent interference. The fuse-link is equipped with a striker for visual/tactile fault indication and supports optional low-voltage trip-indicators that activate field-mountable microswitches for enhanced system monitoring. Compatible with inverters, motor drives, UPS systems, and other 690V or less equipment, the C301026 meets IEC 60269-4 and UL/CSA E76491 standards. Its square body design offers flexible mounting options across global applications, while the aR classification ensures compliance with VDE 636-23 for semiconductor protection. Ideal for power conversion applications requiring precise fault response, the C301026 combines high-speed interruption with superior cycling capability, making it a critical component in modern electrical protection schemes.
  • 200A rating with 1250VAC (IEC) / 1300VAC (UL) voltage range
  • aR class ultra-fast acting fuse for semiconductor protection (diodes, thyristors, IGBTs)
  • High interrupting rating: 100-150 kA for reliable fault interruption
  • Striker included; optional low-voltage trip-indicator for system monitoring
  • Silver-plated contacts, non-magnetic hardware, and flush ends with UNC threads

Specifications

AC Voltage Rating
1300 V
Amperage Rating
200 A
Application
Protection of inverters, motor drives, UPS systems and similar 690V or less equipments.
Brand Name
Mersen
Case
Ceramic
Connection
End Contact with Threaded Holes
Connection Type
Flush ends with UNC threads
Current Rating
200 A
Material
Silver-plated contact surfaces, non-magnetic hardware, die-cut elements in solidified sand
Mounting
Bolted
Mounting Type
Multiple worldwide acceptable mounting styles
Series
Protistor
Size
2.91 x 2.01 x 2.22 in
Size
74 x 51 x 56.5 mm
Size
Size 71
Special Features
Multiple body sizes and terminals or blades combination aR Class according to IEC 60269-4 and VDE 636-23 Very low I²t for improved semiconductor protection Ultra fast acting Current limiting Superior cycling capability
Standard
IEC 60269-4 Compliance UL/CSA Recognized E76491 CCC GB 13539.4 for Asian market only
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links AC Protection
Type Of Indicators
Striker
Voltage Rating
1300 V
Voltage Rating
1250/1300 VAC
Wattage
54 W
Package Dimensions (L x W x H)
2.91 in x 2.01 in x 2.22 in
Package Dimensions (L x W x H)
74 mm x 51 mm x 56.5 mm
Package Weight (Imperial)
1.102 lb
Package Weight (Metric)
0.500 kg
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Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

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Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip
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 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

What standards does the C301026 comply with?

The fuse meets IEC 60269-4 and UL/CSA E76491 standards.

Can the C301026 be used in motor drives?

Yes, the C301026 is suitable for protection in motor drives and similar 690V or less equipment.

What is the aR class classification?

The aR class indicates an ultra-fast acting fuse designed for semiconductor protection per IEC 60269-4.

Are the contact surfaces plated?

Yes, all contact surfaces are silver plated for low resistance.

What voltage ratings does the C301026 support?

The C301026 operates at 1250VAC (IEC) and 1300VAC (UL).

What is the interrupting rating of this fuse?

The interrupting rating is 100-150 kA, ensuring reliable fault interruption.

Is the C301026 compatible with IGBT devices?

Yes, the C301026 is engineered for protection of diodes, thyristors, and IGBT devices.

Does the fuse include a striker?

Yes, the C301026 is equipped with a striker for fault indication.

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.