Mersen G300731 Square Body High-Speed Fuse Protistor® 2x73 aR 1250VAC IEC 900A With Striker Flush ends…
Alternate Item Number: PC273UD13C900TF
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- Rated 1250VAC (IEC) / 1300VAC (UL) for high-voltage applications
- 900A rated current with 150kA breaking capacity for extreme fault protection
- Ultra-fast aR action with pre-arcing I²t of 585 kA²s and clearing I²t of 3080 kA²s
- Square body design with flush metric threads and striker for trip-indicator compatibility
- Silver-plated contacts, non-magnetic hardware, and 234W power dissipation at rated current
Specifications
AC Voltage Rating | 1250 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 | 2x73 |
Size | 3.58 x 6.57 x 3.09 in |
Size | 91 x 167 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 |
Sub Brand | Protistor® |
Type | Square Body High-Speed Fuse-Links AC Protection |
Type Of Indicators | Striker |
Voltage Rating | 1250 V |
Wattage | 208 W |
Package Dimensions (L x W x H) | 3.58 in x 6.57 in x 3.09 in |
Package Dimensions (L x W x H) | 91 mm x 167 mm x 78.5 mm |
Package Weight (Imperial) | 5.578 lb |
Package Weight (Metric) | 2.530 kg |
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Frequently Asked Questions
What is the voltage range for Protistor fuses?
The Protistor fuses are designed for AC protection with a voltage range of 550 to 1250 VAC (IEC).
What types of equipment are these fuses designed to protect?
These fuses are engineered to provide protection for semiconductors such as diodes, thyristors, and IGBT devices in inverters, motor drives, and UPS systems.
What are the available product sizes for these Protistor fuses?
The Protistor fuses are available in size 2x72 and 2x73.
What are the contact surfaces made of?
All contact surfaces are silver plated.
What are the key features of these Protistor fuse-links?
Key features include aR Class according to IEC 60269-4, very low I²t for improved semiconductor protection, ultra-fast acting, current limiting, and superior cycling capability.
Can these fuses be equipped with a trip indicator?
Yes, all fuse-links can be equipped with a low voltage trip-indicator that can operate a field mountable microswitch.
What is the Ampere range for these fuses?
The Ampere range for these fuses is from 630 A to 3600 A.
What is the typical power dissipation for a 900A, 1250V size 2x73 fuse?
The power dissipation at In for the PC273UD13C900TF (900 A, 1250 V, size 2x73) is 208 W.
What is the weight of a size 2x73 fuse?
The weight for size 2x73 fuse-links is typically 2.53 kg.
What is the interrupting rating for these fuses?
The interrupting rating (I.R. AC) for these fuses is 100 kA, 120 kA, or 200 kA depending on the specific model.
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.