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Overview
- Rated for 600VAC/VDC and 100A continuous current
- Supports Class J fuses from 0-100A
- Box connectors for 4-6 AWG Cu-Al stranded or solid wire
- Torque specs: 11.3 N-m (Al), 6.8 N-m (Cu)
- Compact 3.8" A-dimension design for DIN-rail mounting
Specifications
AC Voltage Rating | 600 V |
Amperage Rating | 100 A |
Application | Branch circuits Control panels Load centers Lighting, heating, & general loads |
Brand Name | Mersen |
Class | Class J |
Connection | Box |
Connection Type | Screw, Pressure Plate, Box |
Connection Type | Screw, Pressure Plate, or Box Connectors |
Current Rating | 100A |
DC Voltage Rating | 600 V |
IP Rating | IP20 |
Material | Glass Filled Polycarbonate |
Maximum Operating Temperature | 80 C |
Mounting | Direct Screw Mount |
Mounting Type | Open-style Mounting, DIN-rail Mountable |
Mounting Type | DIN-Rail |
Number Of Poles | 2 |
Poles | 2 |
Series | FB60J |
Series | Generation 2 |
Size | 5.35 x 3.8 x 2.88 in |
Size | 135.89 x 96.52 x 73.152 mm |
Special Features | DIN-rail mountable, 600V, 30-100A fuse bases 30A is available with box, screw, and pressure plate terminations 60A & 100A is available with box only Fresh new Mersen gray color for fuse base Dovetail design for interlocking configuration of 2-pole and 3-pole bases Unique molding around the termination to accommodate hinged cover and for increased safety Built-in lockout/tagout feature IP20 finger safe New clear covers with indicators for safety and visual inspections Multi-connector wiring options |
Standard | All class J fuse blocks meet the requirements of UL4248 (formerly UL512) UL listed Guide IZLT, File E52283 CSA certified class 6225, File 32169 |
Type | UL/CSA Fuse Bases |
Voltage Rating | 600VAC/600VDC |
Package Dimensions (L x W x H) | 5.35 in x 3.8 in x 2.88 in |
Package Dimensions (L x W x H) | 135.89 mm x 96.52 mm x 73.152 mm |
Package Weight (Imperial) | 0.920 lb |
Package Weight (Metric) | 0.417 kg |
LS2572-3DIN
POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications: Typical applications include heating, air conditioning and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, switchgear, and anywhere power needs to be distributed to more than one load.
Frequently Asked Questions
What voltage ratings does this fuse block support?
The FB60J100B2 supports 600VAC and 600VDC applications.
What is the torque specification for aluminum wire?
The torque specification for aluminum wire is 11.3 N-m (100 in-lbs).
What is the A-dimension of this fuse block?
The A-dimension of the FB60J100B2 is 3.8 inches.
What wire sizes are compatible with this fuse block?
The box connectors accept 4-6 AWG copper or aluminum stranded or solid wire.
Does this fuse block support multipole field assembly?
Yes, the dovetail nesting design allows for easy multipole field assembly.
Can this fuse block be mounted on a DIN rail?
Yes, the FB60J100B2 features a compact design suitable for DIN-rail mounting.
What safety rating does this fuse block achieve with dead front covers?
When paired with Mersen dead front covers, the FB60J100B2 achieves an IP20 rating.
How to Install the Mersen FB60J100B2 Fuse Block
Step-by-step guide for mounting and wiring the FB60J100B2 Class J fuse block
Estimated time: 15m
Tools needed:
Screwdriver, Torque screwdriver
Supplies needed:
Mounting screws, Class J fuse (0-100A), Wire strippers
- Mount the fuse block
Secure the FB60J100B2 to a DIN rail or open-style mounting surface using the provided mounting points.
- Prepare the wires
Strip the ends of the 4-6 AWG copper or aluminum wires to the appropriate length for the box connectors.
- Connect the wires
Insert the wires into the box connectors and tighten to the specified torque: 11.3 N-m for aluminum, 6.8 N-m for copper.
- Install the fuse
Insert a Class J fuse rated 0-100A into the fuse block.
- Attach dead front cover (optional)
For enhanced safety, attach a Mersen dead front cover to achieve an IP20 rating.
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.