Siemens 3TH2031-0BB4 Contactor Relay
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Contactor Relay
Siemens 3TH2031-0BB4 compact contactor relay with 24 V DC coil, 3NO+1NC contacts, and IP20 protection. Rated for up to 4 A at 230 V AC and 1.1 kW at 400 V AC.
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Siemens 3TH2031-0BB4 Contactor Relay
The Siemens 3TH2031-0BB4 is a compact and reliable contactor relay designed for controlling and switching auxiliary circuits in industrial automation systems. This unit offers precise performance, wide voltage compatibility, and high mechanical durability, making it suitable for various control applications. It is a direct predecessor to the SIRIUS 3RH21 series.
Manufacturer: Siemens
Type: Contactor Relay
MNR: 3TH2031-0BB4
Successor Type: SIRIUS 3RH21
Size: 0
| Control Supply Voltage | 24 V DC |
| Rated Operating Current | 4 A (230 V AC), 3 A (400 V AC) |
| Rated Operating Power | 0.55 kW (230 V AC), 1.1 kW (400 V AC) |
| Auxiliary Contacts | 3NO + 1NC |
| Identification Number | 31E |
| Protection Class IP | IP20 |
| Standard | IEC 947, VDE 0660 |
| Operation Ambient Temperature | -25 to 55 °C |
| Dimensions (W x D x H) | 45 x 68 x 48 mm |
