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Mersen MPDB67561 - 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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Mersen MPDB67561 Open-Style PDB UL 1953 1000V 135A Tin-plated Aluminum - 175A 1-Pole 1 - 6 openings…

Alternate Item Number: MPDB67561

UPC: 782001448882


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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 MPDB67561 Open-Style Power Distribution Block (PDB) is a UL 1953 certified device designed for safe and efficient cable splicing, power distribution, and fixed junction tap-off points in industrial and commercial electrical systems. Rated for 1000V and 135A continuous current, this tin-plated aluminum block supports 1-pole configurations with 1 to 6 openings, accommodating wire sizes from 2/0 to #14 AWG for primary inputs and #2 to #14 AWG for secondary outputs. Engineered to meet UL 508A and NEC spacing requirements, the MPDB67561 ensures compliance with feeder and branch circuit standards while providing up to 30 secondary outputs. Its open-style design allows for flexible installation in panelboards, control cabinets, and junction boxes, making it ideal for power distribution in manufacturing, automation, and infrastructure projects. The block’s aluminum construction delivers lightweight durability and corrosion resistance, while its UL and CSA approvals guarantee safety and reliability in demanding environments.
  • UL 1953 and CSA certified for safety and compliance
  • Rated for 1000V and 135A continuous current
  • Supports 1-pole configurations with 1 to 6 openings
  • Accepts wire sizes from 2/0 to #14 AWG (primary) and #2 to #14 AWG (secondary)
  • Meets UL 508A and NEC spacing requirements for feeder/branch circuits

Specifications

Ampere Rating (AL)
135 A
Ampere Rating (CU)
175 A
Application
Splicing cables Splitting primary power into secondary circuits Fixed junction tap-off points.
Brand Name
Mersen
Connection
Box To Box
Connection Type
Box to Box
Connector Type (Primary)
Box
Connector Type (Secondary)
Box
Current Rating
135 A
Material
Tin-plated Aluminum
Mounting
Direct Screw Mount
Number Of Terminals
1
Poles
1-pole
Series
MPDB67
Size
3.08 x 1.85 x 3.25 in
Size
78.232 x 46.99 x 82.55 mm
Size
Intermediate
Special Features
Adder Poles: All sizes have optional adder poles for increased flexibility and ease-of-use. Adder poles can be stacked to form multi-pole units in the field without the use of tools. Adder poles allow for customization of primary and secondary wire combinations. End barriers are also available for sale, catalog numbers can be found in the catalog number selection tables for each size block. Wire Connectors: Standard aluminum and copper wire connectors are available. Aluminum connectors accept both AL or CU wire while copper connectors accept CU wire only. Connectors are all 1-piece tin-plated. Many part numbers are rated to accept DLO-type fine-strand wire, allowing users to connect flexible conductors. Insulators: Insulators are virtually unbreakable, made of glass-filled polycarbonate. “See-through,” hinged safety covers are optional and provide a greater degree of safety and shock resistance where required. Hinged covers can be installed without tools. Spacings: 1 inch through air and 2 inches over surface between uninsulated live parts of opposite polarity meets requirements for feeder and branch circuit applications of UL508A. Safety Covers: Polycarbonate safety covers provide dead-front protection. One cover is needed for each pole. Each cover has a test probe hole in the center for circuit checking. Covers are optional accessories and catalog numbers can be found in the catalog selection tables for each size block.
Standard
UL Listed to subject 1953, File E352417 unless noted otherwise CSA Certified Class 6228 01
Type
Open-Style Power Distribution Blocks
Voltage Rating
1000 V
Wire Range (Primary)
2/0-#14
Wire Range (Secondary)
#2-#14
Package Dimensions (L x W x H)
3.08 in x 1.85 in x 3.25 in
Package Dimensions (L x W x H)
78.232 mm x 46.99 mm x 82.55 mm
Package Weight (Imperial)
0.600 lb
Package Weight (Metric)
0.272 kg
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100kA Short Circuit Current Rated Power Distribution Block. 1 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-16-500-1

100kA Short Circuit Current Rated Power Distribution Block. 1 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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Frequently Asked Questions

What are the environmental compliance standards for these blocks?

The blocks are RoHS compliant and Lead Free.

How are Mersen power distribution blocks mounted?

The power distribution blocks are designed for direct panel mounting.

What are the voltage and SCCR ratings for Mersen power distribution blocks?

The blocks are rated for 1000VAC/DC. The SCCR is 100kA with a properly sized fuse.

What is the flammability rating of the insulating material?

The insulating material, glass-filled polycarbonate, has a flammability rating of UL94-V0.

Can I add poles to Mersen power distribution blocks in the field?

Yes, optional adder poles can be stacked to form multi-pole units in the field without tools.

What wire types are compatible with Mersen power distribution blocks?

Aluminum connectors accept AL or CU wire. Copper connectors accept CU wire only. DLO-type fine-strand wire is also supported.

What materials are the insulators and safety covers made from?

Insulators are glass-filled polycarbonate. Optional safety covers are also made of polycarbonate for dead-front protection.

Are double-wide blocks UL or CSA certified?

Double-wide blocks are generally not UL or CSA certified, but are Mersen self-certified and approved.

What are the available series for the MPDB power distribution blocks?

The MPDB series includes miniature (MPDB62 and MPDB63), intermediate (MPDB66 and MPDB67), and large (MPDB68 and MPDB69) sizes.

Are there special blocks for multiple primary inputs?

Yes, specialty blocks are available allowing for up to 7 primary inputs.

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.