Mersen F226325 - British Standard fuse-link IEC BS88 gG Type B4 415VAC 240VDC 400A BTMF Central Bolted Tag
Mersen

F226325

Alternate Item Number: BTMF42V400

Contact for Pricing

Overview

The Mersen F226325 BS88 gG Type B4 fuse-link is an IEC-compliant, central bolted tag fuse designed for general-purpose overcurrent protection in low-voltage industrial systems. Rated for 415VAC and 240VDC, this 400A fuse-link provides exceptional current limitation with a breaking capacity of 80kA AC and 40kA DC. Its pre-arcing I²t is 505,000 A²s and clearing I²t is 1,414,000 A²s at rated voltage, ensuring rapid fault interruption. The central bolted tag design allows secure mounting via screws or direct busbar attachment, compatible with standard fuseholders and disconnectors. Weighing just 0.61kg and dissipating 38W at rated current, it is ideal for space-constrained installations. Compliance with EN 60269-2 section II and BS 88 part 2 guarantees adherence to international safety standards. Typical applications include motor control centers, distribution panels, and industrial machinery requiring reliable overcurrent protection.
  • Rated for 415VAC and 240VDC with 400A current rating
  • 80kA AC and 40kA DC breaking capacity for high fault currents
  • Pre-arcing I²t: 505,000 A²s, clearing I²t: 1,414,000 A²s
  • Central bolted tag design for secure mounting via screws or busbar
  • Compliant with EN 60269-2 and BS 88 part 2 standards

Specifications

AC Voltage Rating
415 V
Amperage Rating
400 A
Application
These fuses are designed for : “General purpose use” protection (gG type)
Brand Name
Mersen
Connection
Central Bolted Tag
Connection Material
Tin-Plated Copper
Connection Type
Central Bolted Tag
Current Rating
400A
DC Voltage Rating
240 V
Interrupt Rating
80 kA
Material
Metal/Composite
Mounting
Bolted
Mounting Type
Screw or Busbar
Mounting Type
Central Bolted Tag
Series
BS88 gG
Series
BS88 gG Type B4
Size
5.43 x 2.33 in
Size
138 x 59.1 mm
Size
Type B4
Special Features
Excellent current limitation for all overloads
Standard
EN 60269-2 section II
Type
BS Fuse-Links
Voltage Rating
415VAC 240VDC
Voltage Rating
415VAC/240VDC
Package Dimensions (L x W x H)
5.43 in x 2.33 in x 2.33 in
Package Dimensions (L x W x H)
138 mm x 59.1 mm x 59.1 mm
Package Weight (Imperial)
1.349 lb
Package Weight (Metric)
0.612 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 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 Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
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 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.