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Mersen MPDB63163 - Open-Style PDB UL 1953 1000V 65A Tin-plated Aluminum - 85A 3-Pole 1 - 4 openings; #4-#14 --- #4-#14 Box to Box
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Mersen MPDB63163 Open-Style PDB UL 1953 1000V 65A Tin-plated Aluminum - 85A 3-Pole 1 - 4 openings; #4-#14…

Alternate Item Number: MPDB63163

UPC: 782001450229


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Line DrawingSpecification Sheet

Contact for Pricing

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

Overview

The Mersen MPDB63163 is a UL 1953-certified open-style power distribution block designed for safe and efficient cable splicing, power splitting, and fixed junction tap-off points in industrial electrical systems. Rated for 1000V and 65A primary current with 85A secondary capacity, this miniature 3-pole PDB handles conductor sizes from #4 to #14 AWG in box-to-box configurations. Constructed from tin-plated aluminum for corrosion resistance and conductivity, the MPDB63163 meets UL and CSA approvals while complying with UL508A and NEC spacing requirements for feeder and branch circuits. Ideal for compact control panels, machinery enclosures, and distribution boards, the MPDB63163 supports single or dual primary inputs with up to 30 secondary outputs. Its miniature form factor fits applications where space is constrained, while the 3-pole design enables balanced power distribution across circuits. The PDB’s open-style construction simplifies wiring and maintenance, reducing installation time by up to 40% compared to traditional terminal blocks. Compatible with standard #4-#14 AWG conductors, the MPDB63163 is part of Mersen’s MPDB series, which spans miniature, intermediate, and large configurations in both aluminum and copper materials. Whether for retrofitting existing systems or new installations, this PDB delivers reliable performance in harsh industrial environments where durability and compliance are critical.
  • UL 1953 and CSA certified for safety and compliance
  • 1000V voltage rating with 65A primary / 85A secondary current capacity
  • Tin-plated aluminum construction for corrosion resistance and conductivity
  • Miniature 3-pole design with #4-#14 AWG conductor range
  • Open-style design for simplified wiring and maintenance

Specifications

Amperage Rating
85 A
Ampere Rating (AL)
65 A
Ampere Rating (CU)
85 A
Application
Splicing cables Splitting primary power into secondary circuits Fixed junction tap-off points.
Brand Name
Mersen
Connection
Box To Box
Connector Type (Primary)
Box
Connector Type (Secondary)
Box
Material
Tin-plated Aluminum
Mounting
Direct Screw Mount
Number Of Terminals
3-pole
Size
3.08 x 2.91 x 2.81 in
Size
78.232 x 73.914 x 71.374 mm
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)
#4-#14
Wire Range (Secondary)
#4-#14
Package Dimensions (L x W x H)
3.08 in x 2.91 in x 2.81 in
Package Dimensions (L x W x H)
78.232 mm x 73.914 mm x 71.374 mm
Package Weight (Imperial)
0.560 lb
Package Weight (Metric)
0.254 kg
Open-Style PDB UL 1953 1000V Tin-plated Copper - 85A 3-Pole 1 - 4 openings; #4-#14 --- #4-#14 Box to Box

MPDB62163

Open-Style PDB UL 1953 1000V Tin-plated Copper - 85A 3-Pole 1 - 4 openings; #4-#14 --- #4-#14 Box to Box
BLOCK MULTI 100A 4P

54214010

BLOCK MULTI 100A 4P
3P FEEDER TERMINAL UL TYPE E MS132

S1-M3-25

3P FEEDER TERMINAL UL TYPE E MS132
Splitter Box Block Assembly, 85 amps, Brushed, Aluminum

ASBB85

Splitter Box Block Assembly, 85 amps, Brushed, Aluminum
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.
Splitter Blocks 125 A Box

CSBL125B

Splitter Blocks 125 A Box
Open-Style PDB UL 1953 1000V Tin-plated Copper - 175A 1-Pole 1 - 2 openings; 2/0-#14 --- #2-#14 Box to Box

MPDB62191

Open-Style PDB UL 1953 1000V Tin-plated Copper - 175A 1-Pole 1 - 2 openings; 2/0-#14 --- #2-#14 Box to Box
Open-Style PDB UL 1953 1000V Tin-plated Copper - 240A 1-Pole 1 - 1 openings; 1/4-20 x 5/8 --- 1/4-20 x 5/8 Stud to Stud

MPDB62201

Open-Style PDB UL 1953 1000V Tin-plated Copper - 240A 1-Pole 1 - 1 openings; 1/4-20 x 5/8 --- 1/4-20 x 5/8 Stud to Stud

Frequently Asked Questions

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

The blocks are rated for 1000VAC/DC and amperages ranging from 65 to 2260A, based on NEC table 310.15(B)(16) 75ºC ampacities.

What wire types are compatible with Mersen power distribution blocks?

Aluminum connectors accept both AL or CU wire, while copper connectors accept CU wire only. Many are rated for DLO-type fine-strand wire.

What are the available series for Mersen power distribution blocks?

The MPDB series includes miniature (MPDB62/63), intermediate (MPDB66/67), and large (MPDB68/69) sizes, in aluminum and copper.

Are Mersen power distribution blocks UL and CSA approved?

Unless noted otherwise, all blocks are UL and CSA approved and meet spacing requirements for feeder and branch circuits.

What are the spacing requirements for feeder and branch circuits?

The blocks meet spacing requirements for feeder and branch circuits with 1 inch through air and 2 inches over surface between live parts.

Are safety covers available for these blocks?

Yes, optional snap-on, hinged safety covers made of polycarbonate are available for greater safety and shock resistance.

What material are the insulators made from?

The insulators are made of virtually unbreakable, glass-filled polycarbonate with a dielectric strength exceeding 2500V.

What is the SCCR rating for these power distribution blocks?

The Short Circuit Current Rating (SCCR) is 100kA when used with a properly sized fuse.

How can I add more poles to a power distribution block?

Optional adder poles can be stacked in the field without tools to form multi-pole units and customize wire combinations.

Are the double-wide blocks UL or CSA certified?

Double-wide blocks are not UL or CSA certified unless otherwise noted; they are Mersen self-certified and approved.

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.