SIEMENS SENTRON 3LD Series — Main and EMERGENCY-STOP Switch Disconnectors up to 250 A:

The 3LD main and EMERGENCY-STOP switches are manually operated switch disconnectors according to IEC 60947-3/VDE 0660 Part 107 (EN 60947-3) and comply with the conditions for switch disconnectors. In EN 60204-1 (VDE 0113 Part 1), main control switches are called "disconnector units", while EMERGENCY-STOP switches are termed "devices for emergency shutdown". The 3LD switches for 16 to 250 A are approved according to UL 508 and can be used as "manual motor controllers" and "motor disconnects". In addition, the 3LD switch disconnectors have CCC certification. Maintenance personnel can protect against unauthorized startup with padlocks (up to 3 can be fitted). The 3LD switches are used for switching main and auxiliary circuits, but also for switching induction motors and other loads during maintenance and repair work. The 3LD switches can be used in any mounting position.

Whether industrial applications, infrastructure or buildings, with the SENTRON family you always have the right device. The components match perfectly. The modular design makes planning as well as configuration for the low-voltage power distribution easy and fast. The maintenance or retrofit is quite simple with the SENTRON product range and a comprehensive, modular accessories.

Features:

The switch position is clearly marked with direction arrows and an "O" for OFF and a "I" for ON at the front

The molded-plastic enclosures each contain an N and/or a PE/ground terminal The switches for floor mounting are snapped onto 35 mm standard mounting rails according to EN 60715 or screw mounted on mounting plates

The mounting depth can be adapted to individual requirements by adjusting the switch shaft length

Standards: DIN VDE 0660, IEC 60947

Applications:

ON-OFF switches

EMERGENCY-STOP switches

Main control switches according to EN 60204-1