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MPDB Series UL Open-Style Power Distribution Blocks

The MPDB Series UL Open-Style Power Distribution Blocks is part of the Mersen (formerly Ferraz Shawmut) power distribution line, distributed by Gross Automation.

MPDB Series UL Open-Style Power Distribution Blocks

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. Meet the trend for increased electrical safety and reduction of shock hazards by adding a saftey cover to you PDB. The optional safety cover snaps easily into the MPDS. No tools required.

Specifications

SpecificationValue
RatingsVolts: 600VAC/DC; Amps:65 to 2260A based on NEC table 310.15(B)(16) 75ºC ampacities; SCCR:100kA with properly sized fuse; UL Listed - 1953, File E352417; CSA Certified: Class 6228 01; RoHS Compliant; Cable splicing, Splitting primary power into secondary circuits, Fixed junction tap-off points
FeaturesAdder 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 witho ut 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; Insulators: Insulators are virtually unbreakable, made of glass-filled polycarbonate. “Seethrough,” 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

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 witho ut 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
  • Insulators: Insulators are virtually unbreakable, made of glass-filled polycarbonate. “Seethrough,” 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

Ratings

  • Volts: 600VAC/DC
  • Amps:65 to 2260A based on NEC table 310.15(B)(16) 75ºC ampacities
  • SCCR:100kA with properly sized fuse
  • UL Listed - 1953, File E352417
  • CSA Certified: Class 6228 01
  • RoHS Compliant
  • Cable splicing, Splitting primary power into secondary circuits, Fixed junction tap-off points

Catalog Numbers

MPDB62 and MPDB63 Open-Style PDBs: Catalog Numbers (Miniature)

ConfigurationLine Wire RangeLine Openings per PoleLoad Wire RangeLoad Openings per PoleAluminum: AdderAluminum: 1-PAluminum: 2-PAluminum: 3-PCopper: AdderCopper: 1-PCopper: 2-PCopper: 3-PAmp Rating per Pole: AlAmp Rating per Pole: Cu
Box-Box4 - 1414 - 141MPDB63100+MPDB63101+MPDB63102+MPDB63103+MPDB62100+MPDB62101+MPDB62102+MPDB62103+6585
Box-Box4 - 1414 - 144MPDB63160+MPDB63161+MPDB63162+MPDB63163+MPDB62160+MPDB62161+MPDB62162+MPDB62163+6585
Box-Box2/0 - 1412/0 - 141MPDB63150+MPDB63151+MPDB63152+MPDB63153+MPDB62150+MPDB62151+MPDB62152+MPDB62153+135175
Box-Box2/0 - 1412 - 142MPDB63190+MPDB63191+MPDB63192+MPDB63193+MPDB62190+MPDB62191+MPDB62192+MPDB62193+135175
Box-Box2/0 - 1414 - 144MPDB63130+MPDB63131+MPDB63132+MPDB63133+MPDB62130+MPDB62131+MPDB62132+MPDB62133+135175
Box-Stud2/0 - 1411/4-20 x 5/81MPDB63140+MPDB63141+MPDB63142+MPDB63143+----135175
Stud-Stud1/4-20 x 5/811/4-20 x 5/81----MPDB62200+MPDB62201+MPDB62202+MPDB62203+240240

MPDB66 and MPDB67 Open-Style PDBs: Catalog Numbers (Intermediate)

ConfigurationLine Wire RangeLine Openings per PoleLoad Wire RangeLoad Openings per PoleAluminum: AdderAluminum: 1-PAluminum: 2-PAluminum: 3-PCopper: AdderCopper: 1-PCopper: 2-PCopper: 3-PAmp Rating per Pole: AlAmp Rating per Pole: Cu
Box-Box2/0 - 1412/0 - 141MPDB67050+MPDB67051+MPDB67052+MPDB67053+MPDB66050+MPDB66051+MPDB66052+MPDB66053+135175
Box-Box2/0 - 1412 - 144MPDB67570+MPDB67571+MPDB67572+MPDB67573+MPDB66570+MPDB66571+MPDB66572+MPDB66573+135175
Box-Box2/0 - 1412 - 146MPDB67560+MPDB67561+MPDB67562+MPDB67563+MPDB66560+MPDB66561+MPDB66562+MPDB66563+135175
Box-Box2/0 - 1412 - 148MPDB67580+MPDB67581+MPDB67582+MPDB67583+MPDB66580+MPDB66581+MPDB66582+MPDB66583+135175
Box-Box2/0 - 1416 - 1410MPDB67590+MPDB67591+MPDB67592+MPDB67593+MPDB66590+MPDB66591+MPDB66592+MPDB66593+135175
Box-Box2/0 - 14110 - 1412MPDB67110+MPDB67111+MPDB67112+MPDB67113+MPDB66110+MPDB66111+MPDB66112+MPDB66113+135175
Box-Box350 - 61350 - 61MPDB67000+MPDB67001+MPDB67002+MPDB67003+MPDB66000+MPDB66001+MPDB66002+MPDB66003+250310
Box-Box350 - 612/0 - 142MPDB67010+MPDB67011+MPDB67012+MPDB67013+MPDB66010+MPDB66011+MPDB66012+MPDB66013+250310
Box-Box350 - 612 - 144MPDB67670+MPDB67671+MPDB67672+MPDB67673+MPDB66670+MPDB66671+MPDB66672+MPDB66673+250310
Box-Box350 - 612 - 146MPDB67660+MPDB67661+MPDB67662+MPDB67663+MPDB66660+MPDB66661+MPDB66662+MPDB66663+250310
Box-Box350 - 612 - 148MPDB67630+MPDB67631+MPDB67632+MPDB67633+MPDB66630+MPDB66631+MPDB66632+MPDB66633+250310
Box-Box350 - 616 - 1410MPDB67650+MPDB67651+MPDB67652+MPDB67653+MPDB66650+MPDB66651+MPDB66652+MPDB66653+250310
Box-Box350 - 6110 - 1415MPDB67620+MPDB67621+MPDB67622+MPDB67623+MPDB66620+MPDB66621+MPDB66622+MPDB66623+250310
Box-Box500 - 41500 - 41MPDB67400+MPDB67401+MPDB67402+MPDB67403+MPDB66400+MPDB66401+MPDB66402+MPDB66403+310380
Box-Box500 - 41350-6 & 2-141&3MPDB67450+MPDB67451+MPDB67452+MPDB67453+MPDB66450+MPDB66451+MPDB66452+MPDB66453+310380
Box-Box500 - 414/0 - 102MPDB67420+MPDB67421+MPDB67422+MPDB67423+----310380
Box-Box500 - 412/0 - 144MPDB67410+MPDB67411+MPDB67412+MPDB67413+MPDB66410+MPDB66411+MPDB66412+MPDB66413+310380
Box-Box500 - 412 - 146MPDB67460+MPDB67461+MPDB67462+MPDB67463+MPDB66460+MPDB66461+MPDB66462+MPDB66463+310380
Box-Box500 - 412 - 148MPDB67430+MPDB67431+MPDB67432+MPDB67433+----310380
Box-Box500 - 416 - 1410MPDB67480+MPDB67481+MPDB67482+MPDB67483+----310380
Box-Box500 - 4110-1418MPDB67490+MPDB67491+MPDB67492+MPDB67493+MPDB66490+MPDB66491+MPDB66492+MPDB66493+310380
Box-Box2/0 - 1422/0 - 142MPDB67020+MPDB67021+MPDB67022+MPDB67023+MPDB66020+MPDB66021+MPDB66022+MPDB66023+270350
Box-Box2/0 - 1422 - 146MPDB67510+MPDB67511+MPDB67512+MPDB67513+MPDB66510+MPDB66511+MPDB66512+MPDB66513+270350
Box-Box2/0 - 1422 - 148MPDB67610+MPDB67611+MPDB67612+MPDB67613+MPDB66610+MPDB66611+MPDB66612+MPDB66613+270350
Box-Box2/0 - 1426 - 1410MPDB67530+MPDB67531+MPDB67532+MPDB67533+MPDB66530+MPDB66531+MPDB66532+MPDB66533+270350
Box-Box2/0 - 14210 - 1415MPDB67550+MPDB67551+MPDB67552+MPDB67553+MPDB66550+MPDB66551+MPDB66552+MPDB66553+270350
Box-Box4/0 - 624/0 - 102MPDB67520+MPDB67521+MPDB67522+MPDB67523+MPDB66520+MPDB66521+MPDB66522+MPDB66523+360460
Box-Box4/0 - 622 - 146MPDB67540+MPDB67541+MPDB67542+MPDB67543+MPDB66540+MPDB66541+MPDB66542+MPDB66543+360460
Box-Stud350 - 613/8-16 x 1-1/161MPDB67250+MPDB67251+MPDB67252+MPDB67253+----250310
Box-Stud500 - 413/8-16 x 1-1/161MPDB67220+MPDB67221+MPDB67222+MPDB67223+----310380
Stud-Stud1/4-20 x 1-5/1611/4-20 x 1-5/161----MPDB66270+MPDB66271+MPDB66272+MPDB66273+155155
Stud-Stud3/8-16 x 1-1/811/4-20 x 1-5/162----MPDB66230+MPDB66231+MPDB66232+MPDB66233+400400
Stud-Stud3/8-16 x 1-1/813/8-16 x 1-1/81----MPDB66260+MPDB66261+MPDB66262+MPDB66263+400400

MPDB68 and MPDB69 Open-Style PDBs: Catalog Numbers (Large)

ConfigurationLine Wire RangeLine Openings per PoleLoad Wire RangeLoad Openings per PoleAluminum: AdderAluminum: 1-PAluminum: 2-PAluminum: 3-PCopper: AdderCopper: 1-PCopper: 2-PCopper: 3-PAmp Rating per Pole: AlAmp Rating per Pole: Cu
Box-Box350 - 612/0 - 146MPDB69170+MPDB69171+MPDB69172+MPDB69173+----250310
Box-Box350 - 614 - 1412MPDB69150+MPDB69151+MPDB69152+MPDB69153+MPDB68150+MPDB68151+MPDB68152+MPDB68153+250310
Box-Box500 - 41500 - 41MPDB69050+MPDB69051+MPDB69052+MPDB69053+----310380
Box-Box500 - 41350 - 62MPDB69060+MPDB69061+MPDB69062+MPDB69063+MPDB68060+MPDB68061+MPDB68062+MPDB68063+310380
Box-Box500 - 414/0 - 64MPDB69510+MPDB69511+MPDB69512+MPDB69513+----310380
Box-Box500 - 412/0 - 146MPDB69070+MPDB69071+MPDB69072+MPDB69073+----310380
Box-Box500 - 414 - 1412MPDB69080+MPDB69081+MPDB69082+MPDB69083+----310380
Box-Box600 - 21600 - 21MPDB69640+MPDB69641+MPDB69642+MPDB69643+----340420
Box-Box1000 - 25011000 - 2501MPDB69000+MPDB69001+MPDB69002+MPDB69003+----445545
Box-Box1000 - 2501500 - 42MPDB69010+MPDB69011+MPDB69012+MPDB69013+----445545
Box-Box1000 - 2501350 - 62MPDB69020+MPDB69021+MPDB69022+MPDB69023+----445545
Box-Box1000 - 25012/0 - 146MPDB69030+MPDB69031+MPDB69032+MPDB69033+----445545
Box-Box1000 - 25014 - 1412MPDB69040+MPDB69041+MPDB69042+MPDB69043+----445545
Box-Box4 - 1424 - 1412MPDB69180+MPDB69181+MPDB69182+MPDB69183+----130170
Box-Box2/0 - 1424 - 1412MPDB69160+MPDB69161+MPDB69162+MPDB69163+MPDB68160+MPDB68161+MPDB68162+MPDB68163+270350
Box-Box2/0 - 14210 - 1420MPDB69600+MPDB69601+MPDB69602+MPDB69603+----270350
Box-Box350 - 62350 - 62MPDB69120+MPDB69121+MPDB69122+MPDB69123+MPDB68120+MPDB68121+MPDB68122+MPDB68123+500620
Box-Box350 - 624/0 - 104----MPDB68320+MPDB68321+MPDB68322+MPDB68323+500620
Box-Box350 - 622/0 - 146MPDB69130+MPDB69131+MPDB69132+MPDB69133+MPDB68130+MPDB68131+MPDB68132+MPDB68133+500620
Box-Box350 - 624 - 1412MPDB69140+MPDB69141+MPDB69142+MPDB69143+MPDB68140+MPDB68141+MPDB68142+MPDB68143+500620
Box-Box500 - 42500 - 42MPDB69090+MPDB69091+MPDB69092+MPDB69093+MPDB68090+MPDB68091+MPDB68092+MPDB68093+620760
Box-Box500 - 424/0 - 64MPDB69310+MPDB69311+MPDB69312+MPDB69313+----620760
Box-Box500 - 424/0 - 104----MPDB68310+MPDB68311+MPDB68312+MPDB68313+620760
Box-Box500 - 422/0 - 146MPDB69100+MPDB69101+MPDB69102+MPDB69103+MPDB68100+MPDB68101+MPDB68102+MPDB68103+620760
Box-Box500 - 422/0 - 148MPDB69350+MPDB69351+MPDB69352+MPDB69353+----620760
Box-Box500 - 424 - 1412MPDB69110+MPDB69111+MPDB69112+MPDB69113+----620760
Box-Box600 - 22600 - 22MPDB69650+MPDB69651+MPDB69652+MPDB69653+----680840
Box-Box600 - 224-14 & 3/0-104&4MPDB69540+MPDB69541+MPDB69542+MPDB69543+----680840
Box-Stud500 - 413/8-16 x 11MPDB69210+MPDB69211+MPDB69212+MPDB69213+----310380
Box-Stud500 - 413/8-16 x 12MPDB69270+MPDB69271+MPDB69272+MPDB69273+----310380
Box-Stud1000 - 25011/2-13 x 1-3/161MPDB69280+MPDB69281+MPDB69282+MPDB69283+----445545
Box-Stud1/2-13 x 114 - 1412----MPDB68290+MPDB68291+MPDB68292+MPDB68293+10001000
Stud-Stud1/2-13 x 1-3/811/2-13 x 1-3/81----MPDB68220+MPDB68221+MPDB68222+MPDB68223+400400

MPDB Double-Wide Open-Style PDBs: Catalog Numbers (Double-Wide), not UL or CSA certified unless otherwise noted

ConfigurationLine Wire RangeLine Openings per PoleLoad Wire RangeLoad Openings per PoleAluminum: 1-PCopper: 1-PAmp Rating per Pole: AlAmp Rating per Pole: CuNotes
Box-Box1000 - 2502500 - 44MPDB69561+-8901090
Box-Box500 - 434/0 - 106-MPDB800011+9301140
Box-Box500 - 432/0 - 148MPDB900061+-9301140
Box-Box600 - 23600 - 23MPDB69331+-10201260
Box-Box500 - 44500 - 44MPDB900071+MPDB800031+12401520
Box-Box500 - 442/0 - 126MPDB900121+MPDB800121+12401520
Box-Box500 - 446 - 1430MPDB69191+-12401520
Box-Box600 - 24600 - 24MPDB69341+-13601680
Box-Box500 - 47500 - 47-MPDB800061+21702660This block is triple-wide
Box-Stud500 - 443/8-16 x 14MPDB900091+-12401520

Accessories

Catalog NumberDescription
MPDBC6263+Hinged Safety Cover for MPDB62 and MPDB63 series
MPDBE6263+End Barrier for MPDB62 and MPDB63 series
MPDBC6667+Hinged Safety Cover for MPDB66 and MPDB67 series
MPDBE6667+End Barrier for MPDB66 and MPDB67 series
MPDBC6869+Hinged Safety Cover for MPDB68 and MPDB69 series
MPDBE6869+End Barrier for MPDB68 and MPDB69 series

Further Next Generation Numbers (MPDB Series Cross-Reference Guide)

Catalog Number (Next Generation)Existing Part #
MPDB62144+62144
MPDB62154+62154
MPDB62204+62204
MPDB63134+63134
MPDB63135+63135
MPDB63144+63144
MPDB63154+63154
MPDB63164+63164
MPDB66260SS+66260SS
MPDB66261SS+66261SS
MPDB66263SS+66263SS

Documentation

One order, one finished panel: Gross Manufacturing builds custom UL 508A control panels around the parts we sell.