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Approvals & Standards

  • UL Listed to subject 1953, File E352417 unless noted otherwise
  • CSA Certified Class 6228 01

Key features & benefits

The Next Generation Power Distribution Block (PDB). Mersen power distribution blocks provide a safe and easy method of splicing cables, splitting primary power into secondary circuits and fulfilling requirements for fixed junction tap-off points. All blocks are UL and CSA approved while meeting spacing requirements for feeder and branch circuits in conjunction with UL508A and the National Electrical Code®. PDB options include single or dual conductor primary inputs and up to 30 secondary outputs. Specialty blocks are available allowing for up to 7 primary inputs. The MPDB series is offered in three size categories: miniature (MPDB62 and MPDB63 series), intermediate (MPDB66 and MPDB67 series), and large (MPDB68 and MPDB69 series), in both aluminum and copper.

More specifications


  • Splicing cables
  • Splitting primary power into secondary circuits
  • Fixed junction tap-off points.

Product Specifications

Item Number


Item Description (ERP)


Short Description

MPDB UL1953 CU MINI 1000V 85A 1-pole 1 #4-#14 in-1 #4-#14 out Box/Box  



Rated voltage AC UL

1000   V

Rated voltage DC UL

1000   V

ROHS Compliant


Short Circuit Rating (Standalone)

10   kA

Short Circuit Rating (Class CC)

30   kA

Short Circuit Rating (Class G)

60   kA

Short Circuit Rating (Class J)

100   kA

Short Circuit Rating (Class L)

100   kA

Short Circuit Rating (Class RK1)

60   kA

Short Circuit Rating (Class RK5)

30   kA

Short Circuit Rating (Class T)

100   kA

Number of Poles


Body/Insulating Material


Connector Material

Tin-plated Copper  

Number of Openings per Pole (Primary)


Number of Openings per Pole (Secondary)


Connector Type (Primary)


Connector Type (Secondary)


Hex/Screw Size & Type (Primary)

1/4-28 x .38  

Hex/Screw Size & Type (Secondary)

1/4-28 x .38  

Hole Diameter (Primary)

0.25   in

Hole Diameter (Secondary)

0.25   in

Torque Rating (Primary)

#4-#6 35; #8 25; #10-#14 20;  

Torque Rating (Secondary)

#4-#6 35; #8 25; #10-#14 20  

Wire Range (Primary)


Wire Range (Secondary)


Installation Mounting

Direct Screw Mount  

Product Weight

0.33   lb

Product Width

1.05   in

Product Length

3.08   in

Product Height

2.81   in

Sell Pack Quantity

6   Each

Sell Pack Weight

2.08   lb

Sell Pack Width

3.13   in

Sell Pack Length

6.5   in

Sell Pack Height

2.88   in