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1 100 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 new 2005 NEC and UL508A marking requirements 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. s Power Distribution Blocks are standard products that have been used in electrical control panels for over 5 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. 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. 's new Power Distribution Blocks (UL File # E09401) are listed to UL 195. The feeder spacing requirements of UL508A are achieved with these blocks. UL 195 Listed Power Distribution Blocks meeting spacing requirements for UL 508A service entrance clearances. Short-Circuit Current Ratings (SCCR) with fuses up to 100,000 ka and circuit breakers up to ka. Power Distribution Block with hinge cover UL 1059 Recognized Power Terminal Blocks with SCCR ratings with fuses up to 200,000kA and circuit breakers up to ka. 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:
2 High SCCR with Fuse Protection UL 1059 Rated Wire Range Suitable Conductors Overcurrent Protection Fuse Required SCCR, RMS Catalog # Poles Amps (openings) kcmil/awg (kcmil/awg) (2) Line Load Line Load J T RK1 RK5 G CC (1) 2/0-14 (4) / , (1) 2/0-14 (1) 2/0-14 2/0-6 2/ , /0-6 2/ ,000 (1) 1/4-20 x (1) 2/0-14 1/ , (1) 2/0-14 (6) / , (1) 2/0-14 (4) / , (1) 2/0-14 (1) 2/0-14 2/0-6 2/ , (2) - 1/0 (2) - 1/0-1/0-1/ , , (1) (1) , / , (1) (4) / , /0 2/ , (1) 50-6 (2) 2/ / , / , (2) 2/0-14 (6) , (1) /8-16 x (1) / / (1) (8) , / , () / , (1) (1) / , (6) /0 1/ , (1) () 1/0-14 2/ , / , (1) (12) / , (2) - 1/0 (12) / , (2) - 1/0 (8) / , / (1) (6) , / ,000 () Maximum size of line side overcurrent protection to provide noted SCCR Page 2
3 High SCCR with Fuse Protection UL 1059 Rated Wire Range Suitable Conductors Overcurrent Protection Fuse Required SCCR, RMS Catalog # Poles Amps (openings) kcmil/awg (kcmil/awg) (2) Line Load Line Load J T RK1 RK5 G CC / , (2) 2/0-14 (6) , / , (1) 2/0-14 (6) / , (1) 2/0-14 (4) / , / , / , (1) 50-6 (6) / ,000 2/ , , (1) 2-14 (1) , , (1) 2-14 (4) , (1) 2/0-14 (1) 2/0-14 2/0-6 2/ , (1) 2-14 (1) , /0-6 2/ ,000 (1) 1/4-20 X (1) 2/0-14 1/ , (1) 2/0-14 (4) / , (1) 2/0-14 (1) 2/0-14 2/0-6 2/ /0-6 2/ ,000 (1) 1/4-20 X (1) 2/0-14 1/ , (1) 2/0-14 (4) / , / , (1) (4) / , (1) (6) / , / ,000 2/ ,000 2/ , /0 2/ , (1) 50-6 (2) 2/ / , / , (2) 2/0-14 (6) , (1) /8-16 x (1) / () Maximum size of line side overcurrent protection to provide noted SCCR Page
4 High SCCR with Fuse Protection UL 1059 Rated Wire Range Suitable Conductors Overcurrent Protection Fuse Required SCCR, RMS Catalog # Poles Amps (openings) kcmil/awg (kcmil/awg) (2) Line Load Line Load J T RK1 RK5 G CC () / , (1) (1) / , / , (1) (6) / , / , (2) 2/0-14 (6) , / , (1) (6) / , / , (1) (8) / , , (1) (1) , , (2) 50-4 (2) , (2) (2) , / , (1) (12) / , /0 2/ , (1) (6) 2/ / , / , (2) (8) 2/ ,000 4/0-4 2/ , (2) (12) , , / , (1) (8) / , / / (2) /8-16 x (2) / /0-4 / / , (2) (8) 2/ ,000 4/0-4 2/ , / (2) (12) / , , ,000 EPBAD (1) 2/0-14 (1) 2/0-14 2/0-6 2/ ,000 () Maximum size of line side overcurrent protection to provide noted SCCR Page 4
5 High SCCR with Fuse Protection UL 1059 Rated Wire Range Suitable Conductors Overcurrent Protection Fuse Required SCCR, RMS Catalog # Poles Amps (openings) kcmil/awg (kcmil/awg) (2) Line Load Line Load J T RK1 RK5 G CC EPBAD (1) 2/0-14 (4) / ,000-1/0-1/0 EPBAP (2) - 6 (2) , ,000 (1) / ,000 EPBAP (8) 2-14 (1) 2/0-14 2/ ,000 EPBCD (1) 2/0-14 (1) 2/0-14 2/0-6 2/ ,000 EPBCD (1) 2/0-14 (4) / ,000-1/0-1/0 EPBCP (2) - 6 (2) , ,000 (1) / ,000 EPBCP (8) 2-14 (1) 2/0-14 2/ ,000 () Maximum size of line side overcurrent protection to provide noted SCCR Page 5
6 High SCCR with Circuit Breaker Protection UL 1059 Suitable Conductors Overcurrent Protection Volts SCCR, RMS Catalog # Poles (kcmil/awg) (2) Circuit Breaker Required Max Line Load Mfr Type Max Amp (1) 2/0-6 (6) 4-10 Square D JJL (1) 2-6 (1) 2-6 Square D JJL HDL HGL6100 (1) 8-10 (1) 8-10 Square D 100 HJL HLL U-HC Allen Bradley U-H6C ,000 (1) 2-6 (4) Square D JJL6 (1) 8-10 (4) HDL HGL6100 (1) 8-10 (4) 14 Square D 100 HJL6100 HLL JJL6 (1) 1/0-8 (1) 1/0-8 Square D / U-JD 22, U-J6D Allen Bradley U-HC 125 0, U-H6C , JJL6 (1) 2/0-10 (4) 4-10 Square D (1) 2/0-8 (4) 4-8 Square D JJL JJL6 (1) 2/0-4 (4) 2-8 Square D U-K6X 400-/ U-KX Allen-Bradley 140U-J6X 4/ , U-JX 1455 JJL6 (1) 2/0-6 (6) 2-10 Square D JJL6 (2) 1/0-8 (6) 4-10 Square D () Maximum size of line side overcurrent protection to provide noted SCCR Page 6
7 High SCCR with Circuit Breaker Protection UL 1059 Suitable Conductors Overcurrent Protection Volts SCCR, RMS Catalog # Poles (kcmil/awg) (2) Circuit Breaker Required Max Line Load Mfr Type Max Amp / Square D JJL JJL6 (2) 2/0-2 (6) 4-8 Square D JDL6175 JGL JJL (2) 4-6 (6) Square D JLL JJL6 (1) 2/0-6 (6) 2-10 Square D JJL6 (1) 2/0-4 (12) 2-8 Square D JJL6 (1) 2/0-4 (6) 8 Square D () Maximum size of line side overcurrent protection to provide noted SCCR Page 7
8 Listed Power Blocks UL 1059 Suitable Conductors Overcurrent Protection Fuse Required SCCR, RMS Volts Catalog # Poles (kcmil/awg) (2) Max Line Load J T RK1 RK5 G CC FPB2570CH 2/ , FPB2572CH 2/0-6 2/ , /0-6 2/ FPB2574CH 100, FPB2580CH 2/ , /0 1/ FPB55CH 100, / / FPB588CH 100, / / FPB595CH 100, / () Maximum size of line side overcurrent protection to provide noted SCCR 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 FPB55CH 2/ Square D JJL6 FPB588CH 2/ Square D JJL6 FPB595CH 2/ Square D JJL6 Page 8
9 Listed Power Distribution Blocks UL 195 QPQS.E09401 Suitable Conductors Overcurrent Protection Fuse Required (kcmil/awg) (2) Line Load Size Class Size Class J T RK1 RK5 G CC Catalog # Poles (CH) /0 B, C 750-1/0 B, C (CH) (CH) 55-1/0 G, H, I 55-1/0 G, H, I (CH) /0 B, C 750-1/0 B, C (CH) (CH) 55-1/0 G, H, I 55-1/0 G, H, I B, C, (CH) 1 /0-2 G, H, I /0 B, C, (CH) /0 G, H, I 1570 (CH) -6 B, C, /0-6 G, H, I 2/0-2 B, C, (CH) G, H, I /0 B, C, (CH) /0 G, H, I (CH) 2/0-6 B, C, G, H, I (CH) 1-2 /0-2 B, C, G, H, I B, C, (CH) /0 B, C, /0-6 G, H, I /0 G, H, I (CH) #2 Opening B, C, G, H, I (CH) 1-2 /0-2 B, C, G, H, I B, C, (CH) /0 B, C, /0-6 G, H, I /0 G, H, I (CH) #2 Opening B, C, G, H, I /0-2 B, C (CH) 1 2/0-2 G, H, I (CH) /0 B, C, /0-6 B, C, 55-1/0 G, H, I 2/0-6 G, H, I (CH) Small Opening 2-6 B, C, 4-6 G, H, I SCCR, RMS /0-2 B, C (CH) /0 B, C, (CH) 2 2/0-2 G, H, I /0 G, H, I (CH) /0-6 B, C, /0-6 G, H, I () Maximum size of line side overcurrent protection to provide noted SCCR Volts Max Page 9
Standard Power Distribution Blocks With High Short-Circuit Current Ratings
427 Van Camp Road P.O. Box 468 Bowling Green, OH 43402 Standard Power Distribution Blocks With High Short-Circuit Current Ratings Marathon offers 600 Volt Power Distribution Blocks with high SCCR s in
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