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3RH11311BB40 Datasheet(PDF) 5 Page - Siemens Semiconductor Group |
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3RH11311BB40 Datasheet(HTML) 5 Page - Siemens Semiconductor Group |
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5 / 76 page  3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications 3TC Contactors for Switching DC Voltage 1- and 2-pole, 32 ... 400 A 3/75 Siemens LV 1 · 2006 ■Overview 3TC4 and 3TC5 EN 60947-4-1 (VDE 0660 Part 102) The contactors are finger-safe according to EN 50274. Terminal covers may have to be fitted onto the connecting bars, depending on the configuration with other devices. The DC motor ratings given in the tables are applicable to the DC-3 and DC-5 utilization categories with two-pole switching of the load or with the two conducting paths of the contactor connected in series. One contactor conducting path can switch full power up to 220 V. The ratings for higher voltages are available on request. 3TC7 EN 60947-4-1 (VDE 0660 Part 102). The contactors are suitable for use in any climate. They are suitable for switching and controlling DC motors as well as all other DC loads. The electromagnetic excitation is designed for a particularly wide coil operating range. It is between 0.7 or 0.8 to 1.2 Us. 3TC74 contactors can be used at up to 750V/400A and 50 Hz in AC-1 operation. ■Application The contactors are suitable for switching and controlling DC motors as well as all other DC circuits. A version with an especially large operating range is available for use in electrically driven vehicles and in switchgear with significant fluctuations in the operating voltage (see page 3/74). |
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