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Mersen B086964 - Square Body High-Speed Fuse Protistor® Size 600 gR (gRB) 4000VDC IEC 40A With Striker L Brackets

Mersen B086964 Square Body High-Speed Fuse Protistor® Size 600 gR (gRB) 4000VDC IEC 40A With Striker L…

Alternate Item Number: D600GB40C40QF


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 Protistor® B086964 is a high-speed fuse-link designed for DC semiconductor protection in demanding applications. This Size 600 gR fuse operates at 4000 VDC with a 40 A current rating, meeting IEC 60269-4 gR class standards. Engineered for square body fuse-links, it features pure silver fuse elements embedded in solidified sand to control arcing and minimize I²t values, reducing damage to protected components during short circuits. Key benefits include extremely fast response times, elimination of overloads, and excellent cycling capability for repeated fault conditions. The striker L brackets enable direct integration into protection schemes, while silver-plated contact surfaces and non-magnetic hardware ensure reliable performance. This fuse is optimized for semiconductor devices including diodes, thyristors, GTOs, and IGBTs in power conversion equipment. Primary applications include protection of inverters, motor drives, UPS systems, and similar DC power conversion equipment operating at 600V or less. The Protistor® series provides state-of-the-art protection for modern power electronics where fast-acting, low I²t fuses are critical for equipment longevity and system reliability.
  • 4000 VDC voltage rating with 40 A current capacity
  • IEC 60269-4 gR class compliance for semiconductor protection
  • Pure silver fuse elements in solidified sand for controlled arcing
  • Striker L brackets for direct integration into protection schemes
  • Optimized for diodes, thyristors, GTOs, and IGBT devices

Specifications

Amperage Rating
40 A
Brand Name
Mersen
Case
Ceramic
Connection
L Brackets
Current Rating
40 A
DC Voltage Rating
4000 V
Mounting
Bolted
Series
Protistor®
Size
16.38 x 2.28 x 2.48 in
Size
416 x 58 x 63 mm
Size
Size 600 gR
Sub Brand
Protistor®
Type
Square Body High-Speed Fuse-Links DC Protection
Type Of Indicators
Striker
Voltage Rating
4000 V
Wattage
63 W
Package Dimensions (L x W x H)
19.88 in x 4.92 in x 3.74 in
Package Dimensions (L x W x H)
505 mm x 125 mm x 95 mm
Package Weight (Imperial)
4.233 lb
Package Weight (Metric)
1.920 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

30323R

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 is the maximum AC voltage for these DC fuses?

The maximum AC voltage for these fuses is 3600 V with a breaking capacity of 30 kA.

What are the available current ratings for gRB and gRD fuses?

gRB and gRD fuses are available in current ratings from 6 to 125 A.

What is the breaking capacity at 3500 V DC for gRB fuses?

The breaking capacity for gRB fuses at 3500 V DC is 30 kA with an L/R of 30 ms.

What is the breaking capacity at 4000 V DC for gRD fuses?

The breaking capacity for gRD fuses at 4000 V DC is 30 kA with an L/R of 15 ms.

What is the weight of the Microswitch MC 2R 3E 1-5NBS?

The Microswitch MC 2R 3E 1-5NBS has a weight of 1920 g.

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.