• Siemens 3TC Contactors for Switching DC Voltage, 1-/2-Pole (32-400 A)
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Siemens 3TC Contactors for Switching DC Voltage, 1-/2-Pole (32-400 A)

Siemens 3TC Contactors for Switching DC Voltage, 1-/2-Pole (32-400 A)

3TC contactors for switching DC voltage and DC motors (DC-3/DC-5), 2-pole 3TC44-3TC56 up to 750 V and 1-pole 3TC74 / 2-pole 3TC78 up to 1 500 V, with DC or 50 Hz AC operation.

Key features

  • 3TC44 to 3TC56: 2-pole, 32 A to 400 A, operational voltage up to 750 V
  • 3TC74 1-pole (750 V) and 3TC78 2-pole (1 500 V), 400 A
  • DC motor ratings up to 250 kW at 750 V (500 kW at 1 500 V for 3TC78)
  • DC operation (24/110/220 V DC) or AC operation 50 Hz
  • Screw terminals; 3TC44 for TH 35 DIN rail, larger sizes screw fixing

Specifications

Brand Siemens
Series 3TC4 / 3TC5 / 3TC7
Utilization category DC-3, DC-5
Standard IEC 60947-4-1
Terminals Screw
Source Siemens Catalog IC 10 · 2026, p. 4/76-4/77
3TC4417-0AB4 Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC4417-0AF4 Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC4417-0AM4 Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC4417-0BP0 Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC4417-0BF0 Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC4817-0AB4 Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC4817-0AF4 Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC4817-0AM4 Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC4817-0BP0 Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC4817-0BF0 Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC5217-0AB4 Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC5217-0AF4 Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC5217-0AM4 Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC5217-0BP0 Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC5217-0BF0 Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC5617-0AB4 Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC5617-0AF4 Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC5617-0AM4 Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC5617-0BP0 Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC5617-0BF0 Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC7414-0EB Size: 12 | Poles: 1 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 24 V DC
3TC7414-0EF Size: 12 | Poles: 1 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 110 V DC
3TC7414-1CM Size: 12 | Poles: 1 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 230/220 V AC 50 Hz
3TC7814-0EB Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 1 500 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 24 V DC
3TC7814-0EF Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 1 500 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 110 V DC
3TC7814-1CM Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 1 500 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 230/220 V AC 50 Hz
Magnetic ContactorsSiemens
26 product codes available in this family
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Siemens 3TC Contactors for Switching DC Voltage, 1-/2-Pole (32-400 A)

Brand Siemens·Magnetic Contactors

Available part numbers (26)

3TC4417-0AB4, 3TC4417-0AF4, 3TC4417-0AM4, 3TC4417-0BP0, 3TC4417-0BF0, 3TC4817-0AB4, 3TC4817-0AF4, 3TC4817-0AM4, 3TC4817-0BP0, 3TC4817-0BF0 + 16 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3TC4417-0AB4Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC4417-0AF4Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC4417-0AM4Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC4417-0BP0Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC4417-0BF0Size: 2 | Poles: 2 | Ie DC-3/DC-5: 32 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC4817-0AB4Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC4817-0AF4Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC4817-0AM4Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC4817-0BP0Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC4817-0BF0Size: 4 | Poles: 2 | Ie DC-3/DC-5: 75 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC5217-0AB4Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC5217-0AF4Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC5217-0AM4Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC5217-0BP0Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC5217-0BF0Size: 8 | Poles: 2 | Ie DC-3/DC-5: 220 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC5617-0AB4Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 24 V DC
3TC5617-0AF4Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V DC
3TC5617-0AM4Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220 V DC
3TC5617-0BP0Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 220/230 V AC 50 Hz
3TC5617-0BF0Size: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 2 NO + 2 NC | Coil: 110 V AC 50 Hz
3TC7414-0EBSize: 12 | Poles: 1 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 24 V DC
3TC7414-0EFSize: 12 | Poles: 1 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 110 V DC
3TC7414-1CMSize: 12 | Poles: 1 | Ie DC-3/DC-5: 400 A | Max. voltage: 750 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 230/220 V AC 50 Hz
3TC7814-0EBSize: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 1 500 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 24 V DC
3TC7814-0EFSize: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 1 500 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 110 V DC
3TC7814-1CMSize: 12 | Poles: 2 | Ie DC-3/DC-5: 400 A | Max. voltage: 1 500 V DC | Aux. contacts: 4 NO + 4 NC | Coil: 230/220 V AC 50 Hz

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