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ST/SN Series AC Synchronous Motors

ST and SN Series synchronous motors provide high performance in three frame sizes, NEMA 23, 34 and 42 (60, 90 and 110 mm). Resistor-capacitor kits are also available. These motors are driven economically from standard AC line voltage and the synchronous speed is related to the line frequency.
*limited availability in Europe
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  • ST models: NEMA 23 (60 mm), three stack length options with torque ratings to 131 N-cm (185 oz-in)
  • SN3 models: NEMA 34 (90 mm), three stack lengths with torque ratings from 198 to 636 N-cm (280 to 900 oz-in)
  • SN4 models: NEMA 42 (110 mm), three stack lengths with torque ratings from 500 to 1059 N-m (715 to 1500 oz-in)
  • All models offer flying lead, terminal box, connector and shaft extension options
  • 72 rpm motor speed (with 60 Hz voltage)
  • Constant speed does not vary with load
  • 120 volt AC models
  • Fast starting, stopping and reversing
  • Can be stalled indefinitely without overheating
  • Standard connections include leaded, terminal box, MS connectors, rear shaft
Model NEMA Frame Sizes Rated Torque (oz-in) Max Load Inertia (oz-in-s1) Standard Options
ST Series 23 4 80-185 0.02 - 0.15 L, T, MS, RS
SN3 Series 34 4 280-900 0.19 - 0.46 L, T, MS, RS
SN4 Series 42 3 715-1,500 0.32 - 0.69 L, T, MS, RS
Documentation
Title Language(s) Date Size Email
pdfKollmorgen EU Declaration of Conformity PowerPac K-N-SN English 25 May 2017 114.53 KB
Certifications
Title Language(s) Date Size Email
pdfEC Machine Directive 2006-42-EC English 06 Sep 2006 1.37 MB
pdfEC Machine Directive 2009-127-EC English 21 Oct 2009 817.6 KB
pdfEU Product Liability Directive English 25 Jul 1985 148.59 KB
pdfGuide to the application of Machinery Directive 2006-42-EC English 01 Jun 2010 1.6 MB
pdfProduct Safety Directive English 03 Dec 2001 254.32 KB
pdfRAPEX Leitfaden English, German 16 Dec 2009 3.17 MB
Catalog
Title Language(s) Date Size Email
Kollmorgen Automation and Motion Control English 01 Dec 2017 14.74 MB
Kollmorgen Automation Solutions Catalog English 01 Dec 2017 14.02 MB
Stepper and Synchronous Motors Catalog EN Rev C English 19 Feb 2014 7.96 MB
Kollmorgen Automationslösungen Katalog German 09 Apr 2017 11.17 MB
Kollmorgen delle soluzioni per automazione e movimento Catalogo Italian 08 Jan 2018 11.2 MB
Kollmorgen otomasyon ve hareket kontrol çözümleri kataloğu TR Turkish 12 Feb 2016 11.05 MB
科尔摩根 运动控制及伺服系统解决方案 Chinese, Simplified 26 Jan 2018 16.64 MB
Brochure
Title Language(s) Date Size Email
Kollmorgen Motion Components Brochure EN RevB English 14 Oct 2011 1.81 MB
Drawings
Title Language(s) Date Size Email
pdfSuperior Stepper Connection Diagrams EN.pdf English 29 Sep 2011 142.25 KB
pdfSuperior Synchronous Connection Diagrams en US.pdf English 29 Sep 2011 2.05 MB
  • ST models: NEMA 23 (60 mm), three stack length options with torque ratings to 131 N-cm (185 oz-in)
  • SN3 models: NEMA 34 (90 mm), three stack lengths with torque ratings from 198 to 636 N-cm (280 to 900 oz-in)
  • SN4 models: NEMA 42 (110 mm), three stack lengths with torque ratings from 500 to 1059 N-m (715 to 1500 oz-in)
  • All models offer flying lead, terminal box, connector and shaft extension options
  • 72 rpm motor speed (with 60 Hz voltage)
  • Constant speed does not vary with load
  • 120 volt AC models
  • Fast starting, stopping and reversing
  • Can be stalled indefinitely without overheating
  • Standard connections include leaded, terminal box, MS connectors, rear shaft

 

Model NEMA Frame Sizes Rated Torque (oz-in) Max Load Inertia (oz-in-s1) Standard Options
ST Series 23 4 80-185 0.02 - 0.15 L, T, MS, RS
SN3 Series 34 4 280-900 0.19 - 0.46 L, T, MS, RS
SN4 Series 42 3 715-1,500 0.32 - 0.69 L, T, MS, RS