Mersen Y301022 - Square Body High-Speed Fuse Protistor® Size 70 aR 1200VAC IEC 1300VAC UL 280A With Striker Flush ends UNC threads
Mersen

Y301022

Alternate Item Number: A130UD70TTI280


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Overview

The Mersen Y301022 is a Size 70 aR Protistor® square body high-speed fuse-link designed for advanced semiconductor protection. Engineered by Mersen, this fuse-link offers exceptional performance with a rated current of 280A, a nominal IEC voltage rating of 1200VAC, and a UL rating of 1300VAC. Its ultra-fast acting characteristics are crucial for safeguarding sensitive semiconductor devices such as diodes, thyristors, GTO's, and IGBTs from damaging overcurrents and short circuits. The construction features pure silver, die-cut elements embedded in solidified sand, which effectively controls arcing and contributes to a low I²t value and a high interrupting rating of 126 kA. This ensures minimal energy let-through during fault conditions, protecting your valuable equipment. The fuse-link boasts flush ends with UNC threads for secure mounting and can be equipped with an optional low-voltage trip-indicator to activate a field-mountable microswitch for remote signaling. With silver-plated contact surfaces and non-magnetic hardware, the Y301022 is built for reliability and longevity in demanding AC protection applications. Its compact square body design and various mounting styles offer flexibility in equipment design. Originating from Mexico, this Mersen Protistor® fuse-link (SKU: Y301022) is a critical component for ensuring the operational integrity of power conversion systems.
  • Mersen Protistor® Size 70 aR square body fuse-link
  • Rated current: 280A
  • Voltage rating: 1200VAC (IEC) / 1300VAC (UL)
  • High interrupting capacity: 126 kA
  • Ultra-fast acting for semiconductor protection

Specifications

AC Voltage Rating
1300 V
Amperage Rating
280 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
UNC threads
Current Rating
280A
Material
Pure Silver, Sand
Mounting
Bolted
Mounting Type
Flush ends
Series
Protistor®
Size
2.91 x 1.57 x 1.95 in
Size
74 x 39.8 x 49.5 mm
Size
Size 70
Special Features
Multiple body sizes and terminals or blades combination aR Class according to VDE 636-23 and IEC 60269-4 Very low I²t for improved semiconductor protection Ultra fast acting Current limiting Superior cycling capability Increased technical performances: higher ratings and reduction in volume and weight
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
1200VAC 1300VAC
Voltage Rating
1300 V
Wattage
61 W
Package Dimensions (L x W x H)
2.91 in x 1.57 in x 1.95 in
Package Dimensions (L x W x H)
74 mm x 39.8 mm x 49.5 mm
Package Weight (Imperial)
0.772 lb
Package Weight (Metric)
0.350 kg
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9F61 Size B Clips 1.6in

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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.

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.

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.