Siemens 3TH2271-0BB4 Contactor Relay

SIEMENS 3TH22 71-0BB4 CONTACTOR RELAY

The Siemens 3TH22 71-0BB4 is a high-quality auxiliary contactor designed for control applications in industrial automation systems. As part of the reliable Siemens contactor relay series, it ensures consistent switching performance and long operational life. This model is compatible with the Sirius 3RH21 successor series and adheres to IEC 947 / VDE 0660 standards.

Manufacturer: Siemens
Type: Contactor Relay
Model: 3TH22 71-0BB4
Successor Type: Sirius 3RH21
Size: 0
Designation: Auxiliary Contactor
Control Supply Voltage: 24 V DC
Identification Number: 71E
Standard: IEC 947 / VDE 0660
Protection Class IP: IP20
Operation Ambient Temperature: -25 / 55 °C
Dimensions (W x D x H): 45 x 96 x 48 mm

Electrical Ratings

• Rated Operating Current:
• 4 A at 230 V AC
• 3 A at 400 V AC

Auxiliary Contacts

• 7 Normally Open (NO)
• 1 Normally Closed (NC)