• Siemens 3TH4 Contactor Relays, 8-Pole, Railway (DC)
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Siemens 3TH4 Contactor Relays, 8-Pole, Railway (DC)

Siemens 3TH4 Contactor Relays, 8-Pole, Railway (DC)

3TH4 8-pole contactor relays with DC operation and integrated varistor for railway applications, with contact arrangements of 4 NO + 4 NC, 5 NO + 3 NC or 6 NO + 2 NC.

Key features

  • 8 contacts to EN 50011 (44E, 53E, 62E)
  • Ie/AC-15: 10 A at 230 V, 6 A at 400 V, 4 A at 500 V, 2 A at 690 V
  • DC solenoid with integrated varistor; 24 V or 110 V DC
  • Ambient temperature -50 to +70 °C
  • Screw terminals; snap-on TH 35 DIN rail mounting

Specifications

Brand Siemens
Series 3TH4
Poles 8
Standard IEC 60947-5-1
Ie/AC-15 10 A/230 V, 6 A/400 V
Operation DC, varistor integrated
Expansion contacts Not possible
Source Siemens Catalog IC 10 · 2026, p. 4/66
3TH4244-0LB4 Contacts: 4 NO + 4 NC (44E) | Coil: 24 V DC | Connection: Screw
3TH4244-0LF4 Contacts: 4 NO + 4 NC (44E) | Coil: 110 V DC | Connection: Screw
3TH4253-0LB4 Contacts: 5 NO + 3 NC (53E) | Coil: 24 V DC | Connection: Screw
3TH4253-0LF4 Contacts: 5 NO + 3 NC (53E) | Coil: 110 V DC | Connection: Screw
3TH4262-0LB4 Contacts: 6 NO + 2 NC (62E) | Coil: 24 V DC | Connection: Screw
3TH4262-0LF4 Contacts: 6 NO + 2 NC (62E) | Coil: 110 V DC | Connection: Screw
Contactor RelaysSiemens
6 product codes available in this family
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Siemens 3TH4 Contactor Relays, 8-Pole, Railway (DC)

Brand Siemens·Contactor Relays

Available part numbers (6)

3TH4244-0LB4, 3TH4244-0LF4, 3TH4253-0LB4, 3TH4253-0LF4, 3TH4262-0LB4, 3TH4262-0LF4

How to order

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Product codes & specifications
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Product codeSpec
3TH4244-0LB4Contacts: 4 NO + 4 NC (44E) | Coil: 24 V DC | Connection: Screw
3TH4244-0LF4Contacts: 4 NO + 4 NC (44E) | Coil: 110 V DC | Connection: Screw
3TH4253-0LB4Contacts: 5 NO + 3 NC (53E) | Coil: 24 V DC | Connection: Screw
3TH4253-0LF4Contacts: 5 NO + 3 NC (53E) | Coil: 110 V DC | Connection: Screw
3TH4262-0LB4Contacts: 6 NO + 2 NC (62E) | Coil: 24 V DC | Connection: Screw
3TH4262-0LF4Contacts: 6 NO + 2 NC (62E) | Coil: 110 V DC | Connection: Screw

Need a different model, or a part not listed here? Send us your parts list →

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