Motor Motor Terminal Terminal Blocks Blocks Marathon Special Products has been an industry leader in electrical/electronic components designed for circuit protection and connection applications for over 60 years. We are pleased to introduce our new Motor Terminal Blocks. The new motor blocks provide a systematic method to wire electrical motors in the motor's junction box and allow for circuit management. These blocks allow for much easier circuit testing and motor replacement over the traditional method of bolts, nuts and insulation. The motor terminal block links can be assembled for either wye or delta wiring configurations. Shown left to right: ST750M8 and ST750M12 These blocks offered by Marathon Special Products are the only Motor Terminal Blocks with up to 1,000V rating and are available in amperages up to 520A. To achieve these ratings, wires need to be terminated with UL Listed crimp lugs. ELECTRICAL/MECHANICAL * Insulator base, high strength polyester (130oC and UL 94 V-0) * 35 to 520 Amps * Up to 1000 Volts * Studs and hardware, steel, zinc plated * Terminal links, copper, nickel plated * Terminal links & hardware provided assembled CERTIFICATIONS * UL Recognized File No. XCFR2.E62806 * UL Investigated to CSA 22.2 No. 158, File No. XCFR8.E62806 * UL Investigated to IEC 60947-7-1, File No. XCHG2.E243117, IEC 60947-7-1 * UL Investigated to SANS 1804-2 * RoHS and REACH Compliant Motor Terminal Block application The majority of Marathon's products have been tested and comply to UL requirements for use with flexible stranded wires, have short-circuit current ratings (SCCR) and are CE 1000 Volt AC/DC rated. Marathon's short lead times, technical support, and excellent customer service ensure you receive a quality product as quickly as possible. Please visit www.marathonsp.com for detailed datasheets and specific product information. You can also call (419) 352-8441 or email us at marketing@marathonsp.com. Motor Terminal Blocks Catalog Stud Number Size Amperage Wire Range (mm) Voltage Style UL/CSA IEC UL/CSA+ IEC Sans 1804 Max. Min. 50A 300V (C/C) 630V 250V #8 AWG #18 AWG ST755M4 M4 One piece 38A ST750M4 M4 One piece 35A 50A 1000V (E/C) 1000V 1100V #8 AWG #18 AWG ST755M5 M5 One piece 50A 50A 800V 660V #8 AWG #16 AWG ST750M6 M6 One piece 101A 121A 1000V (E/C) 1000V 1100V #2 AWG #14 AWG ST750M8 M8 One piece 160A 185A 1000V (E/C) 1000V 1100V 2/0 AWG #12 AWG ST755M10 M10 One piece 185A 217A 1000V (E/C) 1000V 1100V 3/0 AWG #8 AWG ST755M12 M12 One piece 242A 271A 1000V (E/C) 1000V 1100V 250 kcmil #8 AWG ST750M12 M12 Two piece 315A 374A 1000V (E/C) 1000V 1100V 400 kcmil #8 AWG ST750M16 M16 Two piece 520A 520A 1000V (E/C) 1000V 1100V (2) 300 kcmil (2) #2 AWG 600V (C/C) +UL Voltage Classes - C = General Industrial; E = Terminal Blocks rated 601-1500V +CSA Voltage Classes - C = General Industrial All blocks include links and hardware assembled FIGURE 1: FIGURE 2: A E E D C Ref. A C Ref. E D E OG I B F OH B M F OG L L K J Thread Catalog Thread Number Size ST755M4 ST750M4 ST755M5 I K Description FIG M4 x 0.7 A B C D E F J G H Thread I J K L M 55.0 33.0 43.0 16.0 20.0 20.0 6.0 10.0 20.0 22.0 16.5 16.5 N/A 63.0 36.5 42.0 16.5 26.5 26.5 5.8 10.0 9.0 26.5 18.3 18.3 N/A 68.0 40.0 45.0 20.0 25.0 25.0 5.9 10.0 18.0 25.0 21.5 20.0 N/A 85.0 50.0 62.0 27.0 30.0 30.0 7.0 12.0 23.6 30.0 M5 x 0.8 One piece base ST750M6 M6 x 1.0 with risers 27.5 25.0 N/A ST750M8 M8 x 1.25 112.0 68.5 76.0 32.0 40.0 40.0 9.0 15.3 31.0 40.0 36.0 34.3 N/A ST755M10 M10 x 1.5 140.0 86.0 91.0 45.0 50.0 50.0 9.0 15.3 30.5 50.0 45.0 43.0 N/A M12 x 1.75 170.0 110.0 97.0 45.0 60.0 60.0 11.2 18.0 28.0 60.0 179.2 167.0 107.0 51.0 69.7 133.2 11.0 N/A 12.0 85.3 55.0 55.0 N/A 47.0 40.9 85.3 201.3 191.0 133.0 67.0 75.7 151.3 11.0 N/A 12.0 85.3 58.0 52.9 85.3 ST755M12 ST750M12 ST750M16 M16 x 2.0 Two piece base 1 2 For electronic drawings or 2D/3D CAD data, submit request at www.marathonsp.com/drawings.html 13300 Van Camp Road * P.O. Box 468 * Bowling Green, Ohio 43402 Phone: (419) 352-8441 * Fax: (419) 352-0875 * marketing@marathonsp.com www.marathonsp.com A Regal Beloit Company