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Mersen MPDB66610 - Open-Style PDB UL 1953 1000V Tin-plated Copper - 350A Adder 2 - 8 openings; 2/0-#14 --- #2-#14 Box to Box
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Mersen MPDB66610 Open-Style PDB UL 1953 1000V Tin-plated Copper - 350A Adder 2 - 8 openings; 2/0-#14…

Alternate Item Number: MPDB66610

UPC: 782001454951

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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

This intermediate-sized PDB supports a 350A adder with 2 to 8 openings, accommodating wire sizes from 2/0 AWG to #14 AWG for primary inputs and #2 AWG to #14 AWG for secondary outputs. It features single or dual conductor primary inputs and up to 30 secondary outputs, making it ideal for industrial control panels, machinery, and power distribution applications. Compatible with both box-to-box and panel mounting configurations, this PDB is part of Mersen's MPDB series, which spans miniature, intermediate, and large size categories in both aluminum and copper constructions. The MPDB66610 is designed for fixed junction tap-off points, power distribution, and cable splicing in industrial environments where reliable, high-current connections are critical. Its open-style design allows for easy access and maintenance, while the tin-plated copper construction ensures long-term durability and minimal contact resistance. The device supports up to 8 load-side openings per pole, with wire ranges from #2 AWG to #14 AWG, providing flexibility for a wide range of applications. Primary inputs accommodate wire sizes from 2/0 AWG to #14 AWG, making it suitable for both feeder and branch circuit applications. The MPDB66610 is part of Mersen's MPDB series, which includes models with varying pole counts and load-side opening configurations to meet diverse industrial requirements.
  • 350A adder with 2 to 8 openings per pole
  • Primary wire range: 2/0-#14 AWG; secondary wire range: #2-#14 AWG
  • Tin-plated copper construction for enhanced conductivity and corrosion resistance
  • Compatible with box-to-box and panel mounting configurations
  • Meets UL 508A and NEC spacing requirements for feeder and branch circuits

Specifications

Amperage Rating
350 A
Ampere Rating (CU)
350 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 1.72 x 3.25 in
Size
78.232 x 43.688 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)
2/0-#14
Wire Range (Secondary)
#2-#14
Package Dimensions (L x W x H)
3.08 in x 1.72 in x 3.25 in
Package Dimensions (L x W x H)
78.232 mm x 43.688 mm x 82.55 mm
Package Weight (Imperial)
1.100 lb
Package Weight (Metric)
0.499 kg
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Frequently Asked Questions

What is the ampere rating per pole for the MPDB66610?

The MPDB66610 has an ampere rating of 350A per pole for copper wire.

How many line side openings does the MPDB66610 have?

The MPDB66610 has 2 line side openings per pole.

What wire sizes are supported on the load side of the MPDB66610?

The load side supports wire sizes from #2 AWG to #14 AWG.

What is the maximum number of load side openings per pole?

The MPDB66610 supports up to 8 load side openings per pole.

What is the primary wire range for the MPDB66610?

The primary wire range for the MPDB66610 is 2/0 AWG to #14 AWG.

Can the MPDB66610 be used in outdoor environments?

The MPDB66610 is designed for indoor use. For outdoor applications, use an enclosure with appropriate NEMA or IP rating.

Is the MPDB66610 compatible with aluminum wire?

The MPDB66610 is designed for copper wire. For aluminum wire applications, refer to Mersen's aluminum-rated PDBs.

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.