• Siemens SIRIUS 3RH2 Contactor Relays S00, DC Operation (4/8-pole)
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Siemens SIRIUS 3RH2 Contactor Relays S00, DC Operation (4/8-pole)

Siemens SIRIUS 3RH2 Contactor Relays S00, DC Operation (4/8-pole)

SIRIUS 3RH2 contactor relays in size S00 with DC solenoid coils, in 4-pole, 8-pole, diode-protected and latched versions.

Key features

  • Size S00 for screw and snap-on mounting on TH 35 DIN rail
  • Rated control supply voltages 24, 110 and 220 V DC
  • Versions with coil circuit (diode) integrated at the factory, 24 V DC
  • 8-pole 44E and 62E versions with permanently mounted auxiliary switch
  • Latched 3RH24 versions; screw or spring-loaded terminals

Specifications

Brand line SIRIUS
Series 3RH2
Size S00
Operation DC
Mounting Screw / snap-on TH 35 DIN rail
Standards IEC 60947-1, -4-1, -5-1
Other coil voltages On request (catalog p. 3/64)
Source Siemens Catalog IC 10 · 2026, p. 393
3RH2140-1BB40 Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2140-1BF40 Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2140-1BM40 Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1BB40 Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1BF40 Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1BM40 Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1BB40 Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1BF40 Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1BM40 Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2140-1FB40 Version: Integrated diode coil circuit | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1FB40 Version: Integrated diode coil circuit | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1FB40 Version: Integrated diode coil circuit | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2244-1BB40 Version: 8-pole, mounted aux. switch | Contacts: 4 NO + 4 NC | Ident. No.: 44E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 6 A
3RH2262-1BB40 Version: 8-pole, mounted aux. switch | Contacts: 6 NO + 2 NC | Ident. No.: 62E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 6 A
3RH2140-2BB40 Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2140-2BF40 Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 110 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2140-2BM40 Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 220 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2BB40 Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2BF40 Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 110 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2BM40 Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 220 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2BB40 Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2BF40 Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 110 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2BM40 Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 220 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2140-2FB40 Version: Integrated diode coil circuit | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2FB40 Version: Integrated diode coil circuit | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2FB40 Version: Integrated diode coil circuit | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2244-2BB40 Version: 8-pole, mounted aux. switch | Contacts: 4 NO + 4 NC | Ident. No.: 44E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 6 A
3RH2262-2BB40 Version: 8-pole, mounted aux. switch | Contacts: 6 NO + 2 NC | Ident. No.: 62E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 6 A
3RH2440-1BB40 Version: Latched | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2440-1BF40 Version: Latched | Contacts: 4 NO | Ident. No.: 40E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2440-1BM40 Version: Latched | Contacts: 4 NO | Ident. No.: 40E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2431-1BB40 Version: Latched | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2431-1BF40 Version: Latched | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2431-1BM40 Version: Latched | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2422-1BB40 Version: Latched | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2422-1BF40 Version: Latched | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2422-1BM40 Version: Latched | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
Contactor RelaysSiemens
37 product codes available in this family
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Siemens SIRIUS 3RH2 Contactor Relays S00, DC Operation (4/8-pole)

Brand Siemens·Contactor Relays

Available part numbers (37)

3RH2140-1BB40, 3RH2140-1BF40, 3RH2140-1BM40, 3RH2131-1BB40, 3RH2131-1BF40, 3RH2131-1BM40, 3RH2122-1BB40, 3RH2122-1BF40, 3RH2122-1BM40, 3RH2140-1FB40 + 27 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3RH2140-1BB40Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2140-1BF40Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2140-1BM40Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1BB40Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1BF40Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1BM40Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1BB40Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1BF40Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1BM40Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2140-1FB40Version: Integrated diode coil circuit | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2131-1FB40Version: Integrated diode coil circuit | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2122-1FB40Version: Integrated diode coil circuit | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2244-1BB40Version: 8-pole, mounted aux. switch | Contacts: 4 NO + 4 NC | Ident. No.: 44E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 6 A
3RH2262-1BB40Version: 8-pole, mounted aux. switch | Contacts: 6 NO + 2 NC | Ident. No.: 62E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 6 A
3RH2140-2BB40Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2140-2BF40Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 110 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2140-2BM40Version: Standard 4-pole | Contacts: 4 NO | Ident. No.: 40E | Coil: 220 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2BB40Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2BF40Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 110 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2BM40Version: Standard 4-pole | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 220 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2BB40Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2BF40Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 110 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2BM40Version: Standard 4-pole | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 220 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2140-2FB40Version: Integrated diode coil circuit | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2131-2FB40Version: Integrated diode coil circuit | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2122-2FB40Version: Integrated diode coil circuit | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 10 A
3RH2244-2BB40Version: 8-pole, mounted aux. switch | Contacts: 4 NO + 4 NC | Ident. No.: 44E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 6 A
3RH2262-2BB40Version: 8-pole, mounted aux. switch | Contacts: 6 NO + 2 NC | Ident. No.: 62E | Coil: 24 V DC | Connection: Spring-loaded | Ie AC-15/230 V: 6 A
3RH2440-1BB40Version: Latched | Contacts: 4 NO | Ident. No.: 40E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2440-1BF40Version: Latched | Contacts: 4 NO | Ident. No.: 40E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2440-1BM40Version: Latched | Contacts: 4 NO | Ident. No.: 40E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2431-1BB40Version: Latched | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2431-1BF40Version: Latched | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2431-1BM40Version: Latched | Contacts: 3 NO + 1 NC | Ident. No.: 31E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2422-1BB40Version: Latched | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 24 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2422-1BF40Version: Latched | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 110 V DC | Connection: Screw | Ie AC-15/230 V: 10 A
3RH2422-1BM40Version: Latched | Contacts: 2 NO + 2 NC | Ident. No.: 22E | Coil: 220 V DC | Connection: Screw | Ie AC-15/230 V: 10 A

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