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Mersen Z090481 - Square Body High-Speed Fuse Protistor® Size 2x123 gR 750VDC IEC 1000A With Striker metric threads

Mersen Z090481 Square Body High-Speed Fuse Protistor® Size 2x123 gR 750VDC IEC 1000A With Striker…

Alternate Item Number: D2123GC75V10CTF


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 Z090481 Protistor® fuse-link is engineered for robust DC power system protection. This square body fuse features a 750VDC IEC rating and a 1000A current capacity, suitable for applications requiring high current handling. Its size 2x123 designation and gR speed characteristic provide extremely fast-acting semiconductor protection, crucial for minimizing damage to sensitive components during short-circuit events. The fuse exhibits a very low I²t value, ensuring rapid response to overcurrent conditions. An integrated striker offers clear visual indication of fuse operation. Designed for operation at elevated temperatures, this fuse-link contributes to operational efficiency through lower watts loss compared to other fuse types, potentially extending service life. With a 100 kA AC interrupting rating (IEC), the Z090481 is well-suited for protecting inverters, motor drives, UPS systems, and railway power and auxiliary circuits. The metric threaded striker facilitates secure system integration. Key specifications include: Rated Voltage DC (IEC): 750 VDC; Ampere Range (A): 500-1600 A; Speed/Characteristic: gR; I.R. AC (IEC): 100 kA. SKU: Z090481.
  • Extremely fast-acting gR characteristic for semiconductor protection
  • 750VDC IEC rated voltage
  • 1000A current capacity within a 500-1600A range
  • Size 2x123 square body fuse-link
  • Integrated striker for visual operation indication
  • Features metric threaded striker for indication

Specifications

Amperage Rating
1000 A
Application
Protection of inverters Protection of motor drives Protection of UPS systems Railway power and auxiliary circuits Similar 750VDC or less equipments
Brand Name
Mersen
Case
Ceramic
Connection Type
metric threads
Current Rating
1000A
DC Voltage Rating
750 V
Mounting
Bolted
Series
Protistor®
Size
5.83 x 6.26 x 2.87 in
Size
148 x 159 x 73 mm
Size
Size 2x123
Special Features
Multiple body sizes and terminals or blades combination Very low I²t Extremely fast acting Eliminate all overloads Excellent cycling capability
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links DC Protection
Type Of Indicators
Striker
Voltage Rating
750 V
Wattage
187 W
Package Dimensions (L x W x H)
5.83 in x 6.26 in x 2.87 in
Package Dimensions (L x W x H)
148 mm x 159 mm x 73 mm
Package Weight (Imperial)
9.381 lb
Package Weight (Metric)
4.255 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

What is the voltage rating of the Z090481?

The Z090481 is rated for 750VDC operation as per IEC standards.

What is the interrupting rating of this fuse?

The fuse has an interrupting rating of 100kA (AC) as specified in the datasheet.

What does the gR classification mean?

The gR classification indicates a fast-acting fuse designed for semiconductor protection with very low I²t.

What applications is this fuse suitable for?

The Z090481 is designed for protecting inverters, motor drives, UPS systems, and railway power/auxiliary circuits.

What is the size of the Z090481 fuse?

The fuse is size 2x123 as specified in the Mersen catalog.

Does this fuse have a striker mechanism?

Yes, the Z090481 features an integrated striker for visual indication of fuse operation.

What is the ampere range for Protistor® size 2x123?

The Protistor® size 2x123 supports an ampere range of 500A to 1600A.

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.