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Mersen FSPDB5A - FSPDB Series UL 1059 Finger-Safe Power Distribution Block 600V 840A - 840A Tin-plated Aluminum 1-Pole 2 - 2 openings; 600 - #4 --- 600 - #4
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Mersen FSPDB5A FSPDB Series UL 1059 Finger-Safe Power Distribution Block 600V 840A - 840A Tin-plated…

Alternate Item Number: 782001319663

UPC: 782001319663


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen FSPDB5A (SKU: FSPDB5A) is a UL Recognized Component, CSA Certified Finger-Safe Power Distribution Block designed for enhanced safety and ease of installation in industrial power distribution systems. This single-pole block features a robust tin-plated aluminum construction and is rated for 600VAC/DC and 840A. It provides an IP20 level of finger-safe protection, eliminating the need for additional covers or custom shielding to protect live parts, thereby simplifying panel design and reducing installation costs. The FSPDB5A is engineered for applications such as splicing cables, splitting primary power into multiple secondary circuits, or serving as a fixed junction tap-off point. Its compact, modular design allows for flexible configuration, and for multi-pole applications, assembly pins are available. The block features captive termination screws designed to prevent loss and ensure secure connections. Wire range for aluminum or copper conductors is #4 AWG to 600 kcmil, with two openings per pole. The FSPDB5A is CE Marked and complies with IEC-947-7-1, 529, and 68-2-6 standards. Its Short Circuit Current Rating (SCCR) is 100kA at 600V or less when used with a proper fuse. Dimensions for the FSPDB5A are: A=47mm, B=64mm, C=80mm, D=75mm, E=50mm, F=145mm, G=120mm, H=70mm, J=6mm, K=38.5mm. Accessories like cap plugs (FSCAP2 for spare 350 kcmil openings, FSCAP3 for spare 600 kcmil opening) are available to maintain touch safety on unused openings. This product is manufactured in Germany (DE).
  • Finger-safe protection (IP20) eliminates need for extra covers
  • Rated for 600VAC/DC and 840A
  • Tin-plated aluminum construction for reliable conductivity
  • Accommodates wire sizes from #4 AWG to 600 kcmil
  • Modular design with captive termination screws for easy installation

Specifications

Amperage Rating
840 A
Ampere Rating (AL)
840 A
Ampere Rating (CU)
840 A
Application
Splicing cables Splitting primary power into a variety of secondary circuits Providing a fixed junction tap-off point
Brand Name
Mersen
Connection
Box
Connector Type (Primary)
Box
Connector Type (Secondary)
Box
Material
Tin-plated Aluminum
Mounting
Screw
Number Of Terminals
1
Size
5.71 x 2.84 x 3.15 in
Size
145.034 x 72.136 x 80.01 mm
Special Features
Finger-safe protection: Fully insulated block ensures touch safe isolation of live parts. Recessed termination screws and wire openings provide IP20 grade protection and qualify as “fingersafe” 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 Multiple wire ratings: Provide users more versatility by offering capability of using multiple conductors in #2 and 2/0 openings AC & DC ratings: FSPDB1, 2, and 3 have been evaluated for use at 1500V (AC or DC) provided they are installed on DIN-rails only and with proper barriers and spacing between poles of opposite polarity
Standard
UL Recognized Component Guide XCFR2, File E73571 CSA Certified: Class 6228, File 69363 IEC-947-7-1, 529, 68-2-6, CE Marked
Type
Finger-Safe (IP20) Power Distribution Blocks
Voltage Rating
1500 V
Wire Range (Primary)
600 - #4
Wire Range (Secondary)
600 - #4
Package Dimensions (L x W x H)
5.71 in x 2.84 in x 3.15 in
Package Dimensions (L x W x H)
145.034 mm x 72.136 mm x 80.01 mm
Package Weight (Imperial)
2.700 lb
Package Weight (Metric)
1.225 kg
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MPDB69541

Open-Style PDB UL 1953 1000V 680A Tin-plated Aluminum - 840A 1-Pole 2 - 8 openings; 600-#2 --- #4-#14-3/0-#10 Box to Box
CONNECTOR FOR DISTRIBUTION BLOCK UNIPOLAIRE 250 A

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100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 6 x 2/0-14 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

NPDB-26-500-1

100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 6 x 2/0-14 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.
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Open-Style PDB UL 1953 1000V 135A Tin-plated Aluminum - 175A 1-Pole 1 - 6 openings; 2/0-#14 --- #2-#14 Box to Box

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Open-Style PDB UL 1953 1000V 135A Tin-plated Aluminum - 175A 1-Pole 1 - 6 openings; 2/0-#14 --- #2-#14 Box to Box

Frequently Asked Questions

What is the finger-safe protection level of these power distribution blocks?

The blocks provide IP20 grade protection, qualifying as finger-safe per IEC 529, ensuring touch-safe isolation of live parts.

What voltage ratings are available for the FSPDB series?

FSPDB1, 2, and 3 are rated for 1500VAC/DC, while FSPDB4 and 5 are rated for 600VAC/DC.

How are the FSPDB units mounted?

Sizes 1 to 4 feature snap-on DIN-rail mounting adaptors for quick installation on 35mm DIN rail.

Can these blocks be used for multi-pole configurations?

Yes, modular design allows for multi-pole applications using assembly pins, and accessories are available for panel mounting.

What is the purpose of the captive termination screws?

The captive termination screws have a unique channel design ensuring they cannot be lost during wire termination.

What is the SCCR for these power distribution blocks?

The SCCR is 600V or less at 100kA with a proper fuse, and over 600V at 10kA.

Are there any special installation requirements for 1500V AC/DC ratings?

For 1500V AC/DC ratings, FSPDB1, 2, and 3 must be installed on DIN-rails with proper barriers and spacing between poles of opposite polarity.

What accessories are available for the FSPDB blocks?

Available accessories include assembly pins, cap plugs, circuit identification markers, and end anchors.

What is the ampere rating range for the FSPDB series?

The ampere ratings range from 175A to 840A, depending on the specific model.

What wire sizes can be used with the FSPDB blocks?

Wire size capabilities vary by model, ranging from #14 AWG up to 600 kcmil, with options for multiple conductors.

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.