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Mersen MPDB66671 - Open-Style PDB UL 1953 1000V Tin-plated Copper - 310A 1-Pole 1 - 4 openings; 350-#6 --- #2-#14 Box to Box
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Mersen MPDB66671 Open-Style PDB UL 1953 1000V Tin-plated Copper - 310A 1-Pole 1 - 4 openings; 350-#6…

Alternate Item Number: MPDB66671

UPC: 782001454524

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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 MPDB66671 is an advanced Open-Style Power Distribution Block (PDB) from the MPDB66 series, engineered for robust power management in industrial applications. This unit boasts a substantial 1000V voltage rating and a high current capacity of 310A, ensuring reliable performance for demanding circuits. Constructed from tin-plated copper, it offers excellent conductivity and durability. Designed to UL 1953 standards, the MPDB66671 features a 1-pole configuration with a box-to-box connection type, facilitating straightforward wiring. It provides one primary input and up to four secondary openings, accommodating wire sizes from #350 AWG to #6 AWG for the primary and #2 AWG to #14 AWG for the secondary connections. This makes it ideal for splicing cables, splitting primary power into secondary circuits, and establishing fixed junction tap-off points. Mersen power distribution blocks are UL and CSA approved and meet the stringent spacing requirements for feeder and branch circuits as defined by UL508A and the National Electrical Code®. The MPDB66 series, to which this model belongs, represents the intermediate size category within Mersen's PDB offerings, balancing compact form factor with significant power handling capabilities. The tin-plated copper construction ensures efficient current transfer and resistance to corrosion, crucial for long-term operational integrity. This specific model, SKU MPDB66671, manufactured in Germany (DE), is a key component for electrical distribution systems requiring safe, efficient, and code-compliant power management. Its design facilitates ease of installation and maintenance, contributing to reduced downtime and enhanced operational safety. Whether used for primary power splitting or creating multiple secondary circuits from a single source, the MPDB66671 delivers dependable performance.
  • 1000V Voltage Rating for high-power applications
  • 310A Current Rating for substantial power handling
  • Tin-plated Copper construction for superior conductivity
  • 1-Pole, Box-to-Box connection type for simplified wiring
  • UL 1953 and UL508A compliant for safety and code adherence

Specifications

Amperage Rating
310 A
Ampere Rating (CU)
310 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 Copper
Mounting
Direct Screw Mount
Number Of Terminals
1
Size
3.08 x 1.85 x 3.25 in
Size
78.232 x 46.99 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)
350-#6
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)
1.200 lb
Package Weight (Metric)
0.544 kg
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Frequently Asked Questions

What is the voltage rating for Mersen power distribution blocks?

The Mersen power distribution blocks have a voltage rating of 1000VAC/DC.

Are Mersen power distribution blocks UL and CSA approved?

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

What are the insulating materials used in these blocks?

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

What is the flammability rating of the insulating material?

The insulating material has a flammability rating of UL94-V0.

How are Mersen power distribution blocks mounted?

These power distribution blocks are designed for direct panel mounting.

Are safety covers available for these blocks?

Yes, optional snap-on, hinged safety covers are available for increased safety and shock resistance.

Can additional poles be added to the distribution blocks?

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

What is the amperage range for these power distribution blocks?

The amperage rating ranges from 65A to 2260A, depending on the specific model and wire size.

What wire sizes can be used with Mersen power distribution blocks?

Wire sizes range from 14 AWG to 500 kcmil, with specific ranges varying by block model.

What materials are the wire connectors made of?

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

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.