Siemens 3TC contactor

The contactors are suitable for switching and controlling DC motors as well as all other DC circuits.

• Contactors without coil circuit (not only for railway applications) can be retrofitted with RC elements, varistors, diodes or diode combinations (diode and Zener diode combinations for short disconnection times) to suppress switching overvoltages in the coil
• 3TC contactors are equipped with two side auxiliary switches, each with four auxiliary contacts. If a series resistor is used (2 NO contacts + 1 NC contact), one NC contact is required.