Siemens 3TF6933-1DB4

Siemens digital industrial contactor 3TF6933-1DB4

Manufacturer: Siemens Digital Industries
Designation: Contactor 3p, 450 kW, 400/380 V
Type: 3TF6933-1DB4
Rated control supply voltage Us at DC: 24 V
Voltage type for actuation: DC
Rated operating current Ie at AC-1, 400 V: 910 A
Rated operating current Ie at AC-3, 400 V: 820 A
Rated operating power at AC-3, 400 V: 450 kW
Rated operating current Ie at AC-4, 400 V: 690 A
Rated operational power at AC-4, 400 V: 191 kW
Rated operational power NEMA: 514.849125 kW
Suitable for series installation: Yes
Number of auxiliary contacts as NO contacts: 3
Number of auxiliary contacts as NC contacts: 3
Connection type main circuit: Busbar connection
Number of NO contacts as main contacts: 3

Siemens digital industrial contactor 3TF6933-1DB4: more details
Contactor, size 14, 3-pole, AC-3, 450 kW, 400/380 V (690 V)
Auxiliary contact 33 (3 NO + 3 NC) with changeover contactor 3TC4417-4A and series resistor DC economy circuit DC 24 V

Vacuum contactor 3TF6 for switching motors. The 3TF6 vacuum contactors are characterized by maximum performance combined with a compact design and high contact reliability. They also feature a particularly long switching life, making them suitable for frequent switching in inching mode. Pre-assembled auxiliary switches reduce the complexity of your setup. The devices are approved worldwide (e.g., IEC and UL/CSA) and are IE3/IE4 ready. They are available in two sizes, with AC or DC actuation and in a wide power range. In the main circuit, the devices can be connected via busbars, and a wide range of accessories is available for these contactors, such as overvoltage limiters, auxiliary switches, or terminal covers.