Standard Power Distribution Blocks With High Short-Circuit Current Ratings
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1 427 Van Camp Road P.O. Box 468 Bowling Green, OH Standard Power Distribution Blocks With High Short-Circuit Current Ratings Marathon offers 600 Volt Power Distribution Blocks with high SCCR s in response to new 2005 NEC and UL508A marking requirements Power Distribution Block with hinge cover The requirements of the 2005 National Electric Code (NEC) and UL508A now require many electrical panels to carry a Short Circuit Current Rating (SCCR). Analyzing the SCCR of individual components and overcurrent protection devices is a method of determining the SCCR of an electrical assembly. Marathon s Power Distribution Blocks are standard products that have been used in electrical control panels for over 35 years. These blocks have now been tested and approved for higher SCCR. The higher ratings are based on proper wire sizes and the appropriate circuit protection device. UL508A does allow default SCCR for Power Distribution Blocks of 10,000A with no additional testing. Marathon s Power Distribution Blocks (UL File # E62806) are recognized under UL Standard 1059 and have been investigated by UL for Short-Circuit Current Ratings (SCCR) as described in the UL Guide Information for category XCFR2; Terminal Blocks-Component. Marathon's new Power Distribution Blocks (UL File # E309401) are listed to UL The feeder spacing requirements of UL508A are achieved with these blocks. UL 1953 Listed Power Distribution Blocks meeting spacing requirements for UL 508A service entrance clearances. Short-Circuit Current Ratings (SCCR) with fuses up to 100,000A and circuit breakers up to A. UL 1059 Recognized Power Terminal Blocks with SCCR ratings with fuses up to 200,000A and circuit breakers up to A. For rating details see detailed data sheets at These data sheets contain valuable product information including a photo of the product, technical drawings, short circuit current ratings, electrical and mechanical ratings and agency approvals. Phone: (419) * Fax: (800) * Website: 8/7/2014 Rev. C
2 High SCCR with Fuse Protection UL 1059 XCFR2 - E62806 Marathon Catalog # Poles Amps Configuration (kcmil/awg) (2) Wire Line Load Line Load Line Load Class J T RK1 RK5 G CC / B, C ,000 A (1) 2/0-14 (4) G, H, I ,000 A /0-6 2/0-6 B, C ,000 A (1) 2/0-14 (1) 2/ G, H, I ,000 A /0-6 2/0-6 B, C ,000 A (1) 2/0-14 (1) 1/4-20 x 1/2 2/0-10 2/0-10 B, C ,000 A G, H, I ,000 A / B, C ,000 A (1) 2/0-14 (6) G, H, I ,000 A / B, C ,000 A (1) 2/0-14 (4) G, H, I ,000 A Rated Wire Range (openings) kcmil/awg Suitable Conductors Overcurrent Protection Fuse Required Class/Max Amp Rating (3) SCCR, RMS SYM Amps (1) /0-6 2/0-6 B, C ,000 A (1) 2/0-14 (1) 2/ G, H, I ,000 A /0-1/0 B, C ,000 A (2) - 1/0 (2) - 1/0 3/0-1/0 3/0-1/0 G, H, I ,000 A /0 2-8 B, C ,000,A (1) (1) B, C ,000,A G, H, I ,000,A /0 2-8 B, C ,000 A (1) (4) B, C ,000 A /0 1-6 G, H, I ,000 A /0 2/0-1 B, C ,000 A (1) (2) 2/ /0-10 B, C ,000 A / G, H, I ,000 A / B, C ,000 A (2) 2/0-14 (6) / B, C ,000 A G, H, I ,000 A / B, C ,000 A (1) (1) 3/8-16 x 1 1/4 3/0-1/ G, H, I ,000 A /0 2-8 B, C ,000,A (1) (8) B, C ,000,A G, H, I ,000,A
3 (3) / B, C ,000 A (1) B, C ,000 A (1) G, H, I ,000 A G, H, I ,000 A (6) /0 1/0-8 B, C ,000 A (1) /0-10 B, C ,000 A (3) 1/ G, H, I ,000 A G, H, I ,000 A /0 4-8 B, C ,000 A (1) (12) B, C ,000 A G, H, I ,000 A / B, C ,000 A (2) - 1/0 (12) /0-1/ G, H, I ,000 A /0 2-8 B, C ,000 A (2) - 1/0 (8) /0-1/ G, H, I ,000 A / B, C ,000,A (1) (6) B, C ,000,A G, H, I ,000,A
4 High SCCR with Fuse Protection UL 1059 Marathon Catalog # Poles Amps Rated Wire Range Configuration Suitable Conductors Overcurrent Protection Fuse Required (openings) kcmil/awg (kcmil/awg) (2) Class/Max Amp Rating (3) Wire Line Load Line Load Line Load Class J T RK1 RK5 G CC XCFR2 - E /0-2 4/8 B, C ,000 A (2) 2/0-14 (6) / B, C ,000 A G, H, I ,000 A / B, C ,000 A 175 (1) 2/0-14 (6) 4-14 SCCR, RMS SYM Amps (1) 2/ B, C ,000 A G, H, I ,000 A G, H, I ,000 A (1) 2/0-14 (4) / B, C ,000 A G, H, I ,000 A 350-3/0 4-8 B, C ,000 A (1) (6) B, C ,000 A G, H, I ,000 A (1) 2-14 (1) B, C ,000 A B, C ,000 A G, H, I ,000 A B, C ,000 A (1) 2-14 (4) B, C ,000 A G, H, I ,000 A /0-6 2/0-6 B, C A (1) 2/0-14 (1) 2/ G, H, I A /0-6 1/0-6 B, C ,000 A (1) 1/0-18 (1) 1/ G, H, I ,000 A B, C ,000 A (1) 2-14 (1) B, C ,000 A G, H, I ,000 A /0-6 2/0-6 B, C ,000 A (1) 2/0-14 (1) 1/4-20 X 1/2 2/0-10 2/0-10 B, C ,000 A G, H, I ,000 A
5 / B, C ,000 A (1) 2/0-14 (4) / B, C ,000 A G, H, I ,000 A /0-6 2/0-6 B, C A (1) 2/0-14 (1) 2/ G, H, I A /0-6 2/0-6 B, C ,000 A (1) 2/0-14 (1) 1/4-20 X 1/2 2/0-10 2/0-10 B, C ,000 A G, H, I ,000 A / B, C ,000 A (1) 2/0-14 (4) G, H, I ,000 A B, C ,000 A (1) - 6 (1) - 6-1/0-1/0 G, H, I ,000 A B, C ,000 A (1) - 6 (1) - 6-1/0-1/0 G, H, I ,000 A / /0 B, C ,000 A (1) (1) B, C ,000 A /0-1/0 G, H, I ,000 A /0 2-6 B, C ,000 A (1) (4) B, C ,000 A / G, H, I ,000 A /0 2-8 B, C ,000 A B, C ,000 A -1/ G, H, I ,000 A /0 2/0-3 B, C ,000 A (1) (2) 2/ /0-6 B, C ,000 A /0 1-6 G, H, I ,000 A / B, C ,000 A (2) 2/0-14 (6) / B, C ,000 A G, H, I ,000 A B, C A (1) (1) 3/8-16 x 1 1/8-1/0-1/0 G, H, I A (1) (6) 2-14
6 High SCCR with Fuse Protection UL 1059 XCFR2 - E62806 Marathon Catalog # Poles Amps Rated Wire Range Configuration Suitable Conductors Overcurrent Protection Fuse Required (openings) kcmil/awg (kcmil/awg) (2) Class/Max Amp Rating (3) Wire Line Load Line Load Line Load Class J T RK1 RK5 G CC SCCR, RMS SYM Amps (1) (3) / B, C ,000 A (1) B, C ,000 A (1) /0 G, H, I ,000 A G, H, I ,000 A /0 2-8 B, C ,000 A (1) (6) B, C ,000 A / G, H, I ,000 A / B, C ,000 A (2) 2/0-14 (6) / B, C ,000 A G, H, I ,000 A /0 2-8 B, C ,000 A (1) (6) B, C ,000 A G, H, I ,000 A /0 2-8 B, C ,000 A (1) (8) B, C ,000 A / G, H, I ,000 A B, C ,000 A (1) (1) B, C ,000 A G, H, I ,000 A B, C ,000 A (2) (2) B, C ,000 A G, H, I ,000 A -2-2 G, H, I ,000 A B, C ,000 A (2) (2) G, H, I ,000 A /0 2-6 B, C ,000 A (1) (12) B, C ,000 A G, H, I ,000 A G, H, I ,000 A /0 2/0-6 B, C ,000 A (1) (6) 2/ /0-10 B, C ,000 A G, H, I ,000 A G, H, I ,000 A
7 /0-4 B, C ,000 A (2) (8) 2/ /0-10 B, C ,000 A G, H, I ,000 A G, H, I ,000 A B, C ,000 A (2) (12) B, C ,000 k G, H, I ,000 k G, H, I ,000 k /0 2-8 B, C ,000 A (1) (8) B, C ,000 A /0 4-8 G, H, I ,000 A G, H, I ,000 A / /0 B, C ,000 A (2) (2) 3/8-16 x B, C ,000 A / / /0 G, H, I ,000 A G, H, I ,000 A /0-4 B, C ,000 A /0-6 B, C ,000 A (2) (8) 2/ G, H, I ,000 A G, H, I ,000 A B, C ,000 A (2) (12) B, C ,000 A G, H, I ,000 A G, H, I ,000 A
8 High SCCR with Fuse Protection UL 1059 XCFR2 - E62806 Suitable Conductors Overcurrent Protection Fuse Required Rated Wire Range Configuration (kcmil/awg) (2) Class/Max Amp Rating (3) Marathon Catalog # Poles Amps (openings) kcmil/awg Wire Line Load Line Load Line Load Class J T RK1 RK5 G CC SCCR, RMS SYM Amps (1) -1/0-1/0 B, C ,000 A -1/0-1/0 B, C ,000 A 510 EPBAP71 1 (2) - 6 (2) B, C ,000 A -1/0-1/0 G, H, I ,000 A (1) /0 2-8 B, C ,000 A EPBAP (8) B, C ,000 A (1) 2/ G, H, I ,000 A -1/0-1/0 B, C ,000 A -1/0-1/0 B, C ,000 A 510 EPBCP71 1 (2) - 6 (2) B, C ,000 A -1/0-1/0 G, H, I ,000 A (1) /0 2-8 B, C ,000 A EPBCP (8) B, C ,000 A (1) 2/ G, H, I ,000 A Suitable Conductors (kcmil/awg) (2) Overcurrent Protection Fuse Required Class/Max Amp Rating (3) SCCR, RMS SYM Amps (1) Line Load L J T RK1 RK5 BFPB kcmil ,000 A 3 Lugs 10x100x1-4x32x ,000 A or kcmil No Over-Protection Device Required A 5 Flexibar 10x100x1-4x32x1 No Over-Protection Device Required A 6 Applicable lugs/flexibar No Over-Protection Device Required 10,000
9 High SCCR with Circuit Breaker Protection UL 1059 XCFR2 - E62806 Marathon Suitable Conductors Overcurrent Protection Volts SCCR, RMS Catalog # Poles (kcmil/awg) (2) Circuit Breaker Required Max SYM Amps (1) Line Load Mfr Type Max Amp / Square D JJL / Square D JJL , JDL (1) 2/0-6 (6) 4-10 Square D JJL JLL36 JDL36 JDL36 (1) 2-6 (1) 2-6 Square D JJL JLL HDL HGL36100 (1) 8-10 (1) 8-10 Square D HJL36100 HLL U-H3C3 25,000 Allen Bradley 140U-H6C , G-H3I3 25, JDL36 (1) 2-6 (4) Square D JJL36 (1) 8-10 (4) JLL36 HDL36100 (1) 8-10 (4) 14 Square D HGL HJL36100 HLL JJL36 (1) 1/0-8 (1) 1/0-8 Square D JLL JDL36 2/ U-J3D U-J6D U-H3C , Allen Bradley 140U-H6C , / G-H3C / G-H6C / G-J6D3 480 JJL (1) 2/0-10 (4) 4-10 Square D JLL JJL ,000 JDL36 480
10 (1) 2/0-8 (4) 4-8 Square D JJL JLL JJL36 (1) 2/0-4 (4) 2-8 Square D JLL JDL / / Allen-Bradley 140U-K6X3 140U-K3X3 140U-J6X3 140U-J3X / G-K3I / G-J6D3 (1) 2/0-6 (6) JJL JLL Square D JDL LJL LJL , JJL , JJL36 (2) 1/0-8 (6) 4-10 Square D JLL JDL ,000
11 High SCCR with Circuit Breaker Protection UL 1059 XCFR2 - E62806 Marathon Suitable Conductors Overcurrent Protection Volts SCCR, RMS Catalog # Poles (kcmil/awg) (2) Circuit Breaker Required Max SYM Amps (1) Line Load Mfr Type Max Amp 2/ JDL JJL36 Square D JLL LJL LJL ,000 JJL36 (2) 2/0-2 (6) 4-8 Square D JLL JDL JGL36175 (2) 4-6 (6) Square D JJL JLL36175 JDL36 2/ JJL Square D JLL JDL LJL Allen Bradley 140U-J3D G-K3I G-J3D U-K3D (1) 2/0-4 (12) 2-8 JJL36 Square D 480 JLL36 JDL JJL36 (1) 2/0-4 (6) 8 Square D JLL JDL36
12 Listed Power Blocks UL 1059 XCFR2 - E62806 Marathon Suitable Conductors Overcurrent Protection Fuse Required SCCR, RMS Volts Catalog # Poles (kcmil/awg) (2) Class/Max Amp Rating (3) SYM Amps (1) Max Line Load J T RK1 RK5 G CC FPB / , FPB /0-6 2/ , /0-6 2/ FPB , /0-10 2/ FPB / , / FPB , / /0 1/ FPB , / / FPB , Marathon Suitable Conductors Maximum Overcurrent Protection SCCR, RMS Volts Catalog # Poles Copper (kcmil/awg) Circuit Breaker Allowed SYM Amps Max Line Load Mfg Type Max Amp 2/ Square D JLL / Allen Bradley 140U-J6 50, FPB / Allen Bradley 140U-J0 50, / Allen Bradley 140U-H , / Allen Bradley 140U-H , / Square D JLL / Allen Bradley 140U-H , FPB / Allen Bradley 140U-H , / Allen Bradley 140U-J / Allen Bradley 140U-J0 480 FPB /0-2 2/0-2 Square D JLL36 480
13 FPB /0-2 2/0-2 Square D JLL JDL36 2/ Square D JJL36 FPB JLL U-K Allen Bradley 140U-J6 50, U-J0 50,000 JDL36 2/ Square D JJL36 FPB JLL / U-K /0-8 Allen Bradley 140U-J6 50, U-J0 50,000 JDL36 2/ Square D JJL36 FPB JLL U-K , Allen Bradley 140U-J6 50, U-J0 50,000
14 Listed Power Distribution Blocks UL 1953 QPQS.E Marathon Catalog # Poles EPBAD21 Amps Suitable Conductors Overcurrent Protection Fuse Required Rated Wire Range Configuration (kcmil/awg) (2) Class/Max Amp Rating (3) (openings) kcmil/awg Wire SCCR, RMS Line Load Line Load Line Load Class J T RK1 RK5 G CC SYM Amps (1) B, C ,000 A (1) 2-14 (1) (class G,H,I,K) 4-14 (class G,H,I,K) G, H, I ,000 A B, C A EPBAD (1) 2-14 (4) (class G,H,I,K) (class G,H,I,K) G, H, I A EPBAD42 3/0-8 3/0-8 B, C ,000 A EPBAP (1) 3/0-14 (1) 3/0-14 2/0-8 2/0-8 G, H, I ,000 A EPBCD42 EPBCP42 EPBAD45 3/ B, C ,000 A EPBAP (1) 3/0-14 (4) / B, C ,000 A EPBCD45 2/ G, H, I ,000 A EPBCP45 2/ G, H, I ,000 A / /0 B, C ,000 A / / / /0 G, H, I ,000 A / /0 B, C ,000 A (2) 750-1/0 (2) 750-1/ / /0 G, H, I ,000 A /0-2 B, C ,000 A (2) 750-1/0 (6) /0-6 B, C ,000 A /0 3/0-2 G, H, I ,000 A 535-1/0 3/0-6 G, H, I ,000 A /0 2/0-2 B, C ,000 A (2) 750-1/0 (10) 2/ /0 2/0-6 B, C ,000 A /0 1-2 G, H, I ,000 A 535-1/0 1-6 G, H, I ,000 A 750-1/0-2 B, C ,000 A /0-6 B, C ,000 A (2) 750-1/0 (3) /0 2-6 (#2 opening) B, C ,000 A (12) /0 3/0-2 G, H, I ,000 A 535-1/0 3/0-6 G, H, I ,000 A 535-1/0 4-6 (#2 opening) G, H, I ,000 A
15 750-1/0-2 B, C ,000 A /0-6 B, C ,000 A (2) 750-1/0 (5) /0 2-6 (#2 opening) B, C ,000 A (4) /0 3/0-2 G, H, I ,000 A 535-1/0 3/0-6 G, H, I ,000 A 535-1/0 4-6 (#2 opening) G, H, I ,000 A 750-1/0 3/0-2 B, C ,000 A /0 3/0-6 B, C ,000 A (2) 750-1/0 (4) 3/ /0 2-6 (#2 opening) B, C ,000 A (12) /0 2/0-2 G, H, I ,000 A 535-1/0 2/0-6 G, H, I ,000 A 535-1/0 4-6 (#2 opening) G, H, I ,000 A /0 3/0-2 B, C ,000 A (2) 750-1/0 (8) 3/ /0 3/0-6 B, C ,000 A /0 3/0-2 G, H, I ,000 A 535-1/0 2/0-6 G, H, I ,000 A
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100 Van Camp Road P.O. Box 468 Bowling Green, OH 4402 Standard Power Distribution Blocks With High Short-Circuit Current Ratings offers 600 Volt Power Distribution Blocks with high SCCR s in response to
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