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Mersen MPDB67401

Name: UL1953 Power Distribution Block 1000V 380A 1-Pole 1 500-#4 in-1 500-#4 out
Brand: Mersen
SKU: MPDB67401

UL1953 Power Distribution Block 1000V 380A 1-Pole 1 500-#4 in-1 500-#4 out

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Product Description

The UL1953 Power Distribution Block is designed to facilitate safe cable splicing, enabling the distribution of primary power into secondary circuits while adhering to stringent electrical codes. This block is compliant with UL508A and the National Electrical Code®, ensuring reliable performance in feeder and branch circuit applications.

This model supports a maximum operating temperature of 80 °C and is rated for both AC and DC voltages up to 1000 V. The short circuit ratings vary across classes, with up to 400 kA for Class J, ensuring robust protection in demanding environments.

Constructed from glass-filled polycarbonate, the insulators are designed for durability. The optional polycarbonate safety covers enhance safety by providing dead-front protection and include test probe holes for circuit verification. The product line includes features such as optional adder poles for increased versatility, allowing users to customize primary and secondary wire configurations without tools.

With a primary and secondary wire range of 500-#4 and standard tin-plated aluminum connectors, this distribution block is engineered for ease of installation and compatibility with both aluminum and copper wiring. The direct screw mounting installation method simplifies setup, making it suitable for various applications in electrical distribution systems.

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Offer details

Best offer from:: Trusted supplier — United Kingdom, member since 2026, 20–49 employees
Availability:: 2 pcs.
In-Stock
Updated at: 07-11-2025
Condition:: New Surplus

New Surplus - A new, unused, undamaged item without a manufacturer guarantee. The item may come without original packaging or in replacement packaging. If provided, the box may have been opened.

The Seller is responsible for shipping the product and invoicing

Specifications

Brand: Mersen
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.
Max Operating Temp: 80 °C