SIEMENS 3TF4511-0BB4 Power Contactor 3-Pole S2

Contactors are a significant part of safety-related applications. They are generally the actuators that perform the switching operation leading to the safe disconnection of the corresponding application or system. Sizes S0 to S3: the basic units contain two integrated auxiliary contacts (1 NO + 1 NC). SIEMENS 3TF4511-0BB4 contactors fulfill the requirements for environment category A. Sizes S2 and S3: screw terminals with box terminal; direct connection to the connecting bar possible with cable lugs for S3 when the box terminal is removed. All 3RT2 contactors and 3RH2 contactor relays can be retrofitted with RC elements or varistors for damping opening surges in the coil. SIEMENS 3TF45110BB4 is comparable to SIEMENS 3RT1035-1BB40, 3RH1921-1EA11.