THSC 121/SC 121A, Low-Voltage Switchgear and Controlgear
CHAIR
Mr. Dan Nachtigall
Rockwell Automation
1201 South Second St.
Milwaukee, WI 53204 USA
Ph: (414) 382-1237
Fax: (414) 382-4140
Email: dlnachtigall@ra.rockwell.com 
SECRETARY
Mr. Mike Leibowitz
NEMA
1300 N. 17th Street, Suite 900
Rosslyn VA 22209 USA
Ph: (703) 841-3264
Fax: (703)841-3364
Email: mike.leibowitz@nema.org
SCOPE
To develop trinational standard for general use requirements for industrial control equipment and maintain standards through active participation in revision process.
STANDARDS
Standard: Low-voltage switchgear and controlgear – Part 1: General rules
Standard No.: C22.2 No. 60947-1, UL 60947-1, NMX-J-515-ANCE
Standard: Low-Voltage Switchgear and Controlgear – Part 4-2: Contactors and Motor-Starters – AC Semiconductor Motor Controllers and Starters
Standard No.: CSA C22.2 No 60947-4-2; UL 60947-4-2; NMX-J-XXX-ANCE, IEC 60947-1
PROJECTS
79. General Rules
120. AC Semiconductor Motor Controllers and Starters
Publication Schedules