Mersen T300512 Square Body High-Speed Fuse Protistor® Size 73 aR 1200VAC IEC 1300VAC UL 900A With…
Alternate Item Number: PC73UD12C900TF
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Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- Ultra-fast acting aR fuse-link for semiconductor protection (diodes, thyristors, IGBTs)
- Operating ratings: 1200VAC (IEC), 1300VAC (UL), 900A
- Square body design with flush ends and metric threads for precise installation
- Silver-plated contacts and non-magnetic hardware for enhanced performance and longevity
- Optional low-voltage trip indicator with microswitch activation for system monitoring
Specifications
AC Voltage Rating | 1300 V |
Amperage Rating | 900 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 | metric threads |
Current Rating | 900A |
Material | Silver-plated, non-magnetic hardware |
Mounting | Bolted |
Mounting Type | Flush ends |
Series | Protistor® |
Size | Size 73 |
Size | 2.91 x 2.87 x 3.09 in |
Size | 74 x 73 x 78.5 mm |
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 | 1200VAC/1300VAC |
Wattage | 151 W |
Package Dimensions (L x W x H) | 2.91 in x 2.87 in x 3.09 in |
Package Dimensions (L x W x H) | 74 mm x 73 mm x 78.5 mm |
Package Weight (Imperial) | 2.690 lb |
Package Weight (Metric) | 1.220 kg |
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Frequently Asked Questions
What voltage ratings does the T300512 support?
The T300512 supports 1200VAC (IEC) and 1300VAC (UL) operating voltages.
Is the T300512 suitable for IGBT protection?
Yes, the T300512 is specifically designed for protecting IGBT devices in power conversion applications.
What is the fuse classification for the T300512?
The T300512 is classified as an aR fuse, optimized for semiconductor protection applications.
Does the T300512 include a trip indicator?
Yes, the T300512 can be equipped with a low-voltage trip indicator that activates a microswitch for system monitoring.
What is the interrupting rating of the T300512?
The T300512 has a 900A interrupting rating, designed for high-speed overcurrent protection.
What materials are used in the T300512 construction?
The T300512 features silver-plated contacts and non-magnetic hardware for enhanced conductivity and corrosion resistance.
What are the dimensions of the T300512?
The T300512 has a square body with a diameter of 46mm and includes 2x Ø5 anti-rotation holes.
What type of mounting does the T300512 use?
The T300512 features flush ends with metric threads for secure mounting in power conversion equipment.
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.