Mersen FSCAP3 - FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 3 cap .
Mersen

FSCAP3

Alternate Item Number: 782001348021

UPC: 782001348021

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Minimum Qty: 10

Multiplier: 10

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Overview

The Mersen FSPDB Size 3 Cap (SKU: FSCAP3) is a finger-safe power distribution block designed for safe, modular, and efficient power distribution in industrial and commercial electrical panels. Engineered by Mersen, a global leader in electrical protection and power management, this IP20-rated block eliminates the need for additional protective covers or custom Plexiglas sheets, ensuring compliance with safety standards while simplifying installation. The FSCAP3 snaps securely onto standard 35mm DIN rails, enabling rapid deployment and reducing installed costs. Its modular design allows for single or multi-pole configurations, with optional assembly pins for rigid multi-pole mounting. The block features recessed termination screws and wire openings for IP20 finger-safe protection per IEC 529, protecting operators from accidental contact with live components. Captive metric termination screws prevent loss during installation or maintenance, while cap plugs maintain touch safety on unused openings. Circuit identification markers snap into place for easy labeling. The FSCAP3 supports voltages up to 1500VAC/DC and currents from 175A to 840A, with Short Circuit Current Ratings (SCCR) of 100kA at 600V or less (with proper fuse) and 10kA over 600V. Approved by UL (File E73571) and CSA (Class 6228), the FSCAP3 is ideal for industrial automation, control panels, renewable energy systems, and building management systems where space efficiency, safety, and scalability are critical. Its compact footprint and DIN rail mounting make it suitable for high-density panel designs, while its durable construction ensures long-term reliability in harsh environments.
  • IP20 finger-safe protection per IEC 529 eliminates need for additional covers
  • Snap-on 35mm DIN rail mounting for quick, tool-free installation
  • Modular design supports single or multi-pole configurations with assembly pins
  • Captive metric termination screws prevent loss and ensure secure connections
  • Supports voltages up to 1500VAC/DC and currents from 175A to 840A

Specifications

Brand Name
Ferraz Shawmut
Connection Type
Snap-on / DIN rail
IP Rating
IP20
Mounting Type
35mm DIN Rail
Number Of Poles
1
Poles
Modular (1-4 poles)
Series
FSPDB
Size
Size 3
Special Features
Finger-Safe Fully insulated block ensures that no one can touch live parts. Recessed termination screws and wire openings provide IP20 grade protection and qualify as "finger-safe" per IEC 529. Compact Modularity Single or multiple pole configurations in the most compact footprint. Allows users to build smaller or higher density panels. Snap on DIN Rail Mounting Sizes 1 to 4 feature integral DIN rail adaptors allowing for quick and easy installations on 35mm DIN rail yielding lower installed costs. Captive Termination Screws Unique channel design ensures captive metric wire termination screws. Screws can never be lost. Available Accessories For multi-pole panel mounting, simply snap in pins for rigid fit. Cap plugs provide the ability to maintain touch safety on unused openings. Circuit identification markers simply snap into blocks to ID circuits. End anchors provide rigid end stops.
Type
Finger-Safe Power Distribution Blocks UL 1059
Voltage Rating
600 VAC
FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 2 cap .

FSCAP2

FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 2 cap .
FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 2 card .

FSCIM2

FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 2 card .
FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. end anchor .

FSEA

FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. end anchor .
FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 1 cap .

FSCAP1

FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 1 cap .
FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 1 card .

FSCIM1

FSPDBs introduce a new level of safety and ease for installing power distribution blocks. An IP20 level of finger safe protection is achieved using the FSPDBs and thus eliminates the need for special covers or custom Plexiglas sheets to protect your panels. FSPDBs (sizes 1 to 4) simply snap onto 35mm DIN rail to provide the quickest installation. And since they are modular, you can form any number of poles desired. If multi-pole panel mounting is desired, multiple-pole assembly pins are available. FSPDBs provide a safe, convenient way of splicing cables, splitting primary power into a variety of secondary circuits or providing a fixed junction tap-off point. size 1 card .
End Barrier for LARGE adder PDB

U09911

End Barrier for LARGE adder PDB
End Barrier for Mini adder PDB

U09311

End Barrier for Mini adder PDB
End Barrier for INT adder PDB

U09705

End Barrier for INT adder PDB

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.