Siemens Power DistributionSiemens Power Distribution

Effective and Safe

The application options of SENTRON 3LD2 disconnector units are manifold. After power failure, they provide for safe disconnection of the entire electrical equipment. They also switch AC motors, air-conditioning and solar plants. SENTRON 3LD2 main and EMERGENCY-STOP switches have been tried-and-tested in numerous applications and are particularly suitable for processing machines in the field of machine and conveyor system construction as well as for the chemical and food and beverages industry.

Advantages at a glance

  • Optimum mains isolation from 16 to 250 A
    through lockable rotary operating mechanism

  • Flexible and global applicability
    through international IEC and UL approvals

  • Easy planning, assembly and retrofitting
    through modular design, few components and uniform accessories

Application areas

  • For switching of main and auxiliary circuits

  • For switching of three-phase motors and other consumers in maintenance and repair cases

International standards and approvals

  • Certified as manually operated switch disconnector complying with disconnector conditions in acc. with IEC 60947-3, DIN VDE 0660 Part 107, EN 60947-3

  • Applicable as ON-OFF, EMERGENCYSTOP and main switch in acc. with DIN EN 60204-1

  • For international applications, also versions in acc. with UL 508 are available.