Authorized Mersen Distributor
Mersen MPDB67223 - Open-Style PDB UL 1953 1000V 310A Tin-plated Aluminum - 380A 3-Pole 1 - 1 openings; 500-#4 --- 3/8-16 x 1-1/16 Box to Stud
More images

Mersen MPDB67223 Open-Style PDB UL 1953 1000V 310A Tin-plated Aluminum - 380A 3-Pole 1 - 1 openings…

Alternate Item Number: MPDB67223

UPC: 782001452728

Documents & Media
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

Introducing the Mersen MPDB67223, an open-style Power Distribution Block (PDB) engineered for robust power management in industrial applications. This next-generation PDB is designed to provide a safe, efficient, and straightforward method for splicing cables, splitting primary power into multiple secondary circuits, and establishing fixed junction tap-off points. Meeting stringent UL and CSA approval standards, the MPDB67223 ensures compliance with feeder and branch circuit spacing requirements as defined by UL508A and the National Electrical Code®. The MPDB67223 features a 1000V voltage rating and a substantial 310A current rating, making it suitable for high-power distribution needs. Constructed from durable tin-plated aluminum, this block offers excellent conductivity and corrosion resistance. It is configured as a 3-pole unit with a versatile Box to Stud connection type, specifically designed for 380A applications. The block accommodates one primary input and one opening for secondary connections, with capacity for 500 AWG to #4 AWG conductors via its 3/8-16 x 1-1/16 box lugs. As part of Mersen's MPDB series, the MPDB67223 falls into the intermediate size category, offering a balance of capacity and footprint. This series is available in both aluminum and copper variants, with various configurations including single or dual conductor primary inputs and up to 30 secondary outputs. Specialty blocks are also offered, supporting up to 7 primary inputs. Choose the Mersen MPDB67223 for reliable and compliant power distribution in your critical industrial systems.
  • 1000V voltage rating for high-power applications
  • 310A current rating for robust power distribution
  • Durable tin-plated aluminum construction
  • 3-pole configuration with Box to Stud connection
  • UL and CSA approved, meets NEC and UL508A requirements

Specifications

Amperage Rating
380 A
Ampere Rating (AL)
310 A
Ampere Rating (CU)
380 A
Application
Splicing cables Splitting primary power into secondary circuits Fixed junction tap-off points.
Brand Name
Mersen
Connection
Box To Stud
Connector Type (Primary)
Box
Connector Type (Secondary)
Stud
Material
Tin-plated Aluminum
Mounting
Direct Screw Mount
Number Of Terminals
3-pole
Size
3.08 x 5.28 x 3.25 in
Size
78.232 x 134.112 x 82.55 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)
500-#4
Wire Range (Secondary)
3/8-16 x 1-1/16
Package Dimensions (L x W x H)
3.08 in x 5.28 in x 3.25 in
Package Dimensions (L x W x H)
78.232 mm x 134.112 mm x 82.55 mm
Package Weight (Imperial)
1.600 lb
Package Weight (Metric)
0.726 kg
Open-Style PDB UL 1953 1000V Tin-plated Copper - 380A 3-Pole 2 - 2 openings; 500-#4 --- 3/8-16 x 1 Box to Stud

MPDB68223

Open-Style PDB UL 1953 1000V Tin-plated Copper - 380A 3-Pole 2 - 2 openings; 500-#4 --- 3/8-16 x 1 Box to Stud
TERMINAL DISTRIBUTION BLOCK MULTIPOLAR WITH FLAT BARS 3 POLES 400 A

54123040

TERMINAL DISTRIBUTION BLOCK MULTIPOLAR WITH FLAT BARS 3 POLES 400 A
Power Distribution Block (1) 500 MCM-4 AWG Primary (12) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.

AM-R1-H12

Power Distribution Block (1) 500 MCM-4 AWG Primary (12) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.
Splitter Blocks 400 A

CSBL400

Splitter Blocks 400 A
Splitter Trough Block Assembly, 600V 400A 4-600MCM:1/0-250 kcmil, Brushed, Aluminum

ASTB400

Splitter Trough Block Assembly, 600V 400A 4-600MCM:1/0-250 kcmil, Brushed, Aluminum
3PHASE POWER FEED BLOCK FLAT MS116/

S1-M1-25

3PHASE POWER FEED BLOCK FLAT MS116/
Open-Style PDB UL 1953 1000V 250A Tin-plated Aluminum - 310A Adder 1 - 1 openings; 350-#6 --- 3/8-16 x 1 Box to Stud

MPDB67250

Open-Style PDB UL 1953 1000V 250A Tin-plated Aluminum - 310A Adder 1 - 1 openings; 350-#6 --- 3/8-16 x 1 Box to Stud
Open-Style PDB UL 1953 1000V Tin-plated Copper - 380A Adder 2 - 2 openings; 500-#4 --- 3/8-16 x 1 Box to Stud

MPDB68220

Open-Style PDB UL 1953 1000V Tin-plated Copper - 380A Adder 2 - 2 openings; 500-#4 --- 3/8-16 x 1 Box to Stud

Frequently Asked Questions

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

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

Are the double-wide MPDB series blocks UL or CSA certified?

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

What approvals do the MPDB series power distribution blocks have?

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

What material are the insulators made of and what is their dielectric strength?

Insulators are made of virtually unbreakable, glass-filled polycarbonate with a dielectric strength in excess of 2500V.

What is the flammability rating of the insulating material?

The insulating material has a UL94-V0 flammability rating.

How are the power distribution blocks mounted?

The power distribution blocks are designed for direct panel mount.

Are there options for adding more poles to the distribution blocks?

Yes, optional adder poles are available for increased flexibility and can be stacked to form multi-pole units in the field without tools.

What types of wire connectors are available for these blocks?

Standard aluminum and copper wire connectors are available. Aluminum connectors accept both AL or CU wire, while copper connectors accept CU wire only.

What are the spacing requirements for feeder and branch circuits?

The blocks meet feeder and branch circuit requirements with 1 inch through air and 2 inches over surface spacing between uninsulated live parts of opposite polarity.

Are safety covers available for the power distribution blocks?

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

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.