Siemens SIRIUS 3RT2015-1BB44-3MA0 Power Contactor 7A, 3kW/400V, 24V DC Coil, 2 NO + 2 NC Aux, Screw Terminal, Size S00 Original Brand New

Overview

The Siemens SIRIUS 3RT2015-1BB44-3MA0 Power Contactor is a robust and compact switching device designed for high-performance motor control in industrial applications. As part of the modular SIRIUS 3RT2 system, this 3-pole contactor is engineered for use in AC-3e/AC-3 applications, offering a reliable solution for switching motors up to 3 kW at 400 V. Its compact Size S00 ensures space efficiency in control panels.

Benefit

• Reliable Motor Protection: Engineered for AC-3 and the higher efficiency AC-3e standard, ensuring safe and effective switching of induction motors.
• Space-Saving Design: The compact S00 size allows for high-density installation in control cabinets.
• Safety Compliance: Features a captive auxiliary switch, ideal for applications requiring robust safety integrity (e.g., SUVA/safety circuits).
• Simplified Wiring: Equipped with 2 NO and 2 NC auxiliary contacts and a 24 V DC coil, it simplifies connection to PLC control systems and provides essential feedback/interlocking circuits without the need for external auxiliary blocks.
• Global Standard: Compliant with international standards (IEC, UL/CSA), making it suitable for worldwide use.

Function

The Siemens 3RT2015-1BB44-3MA0 functions as the main switching component in a motor circuit. When the 24 V DC control voltage is applied to the coil, the contactor closes its three main power contacts (3 NO) to supply power to the motor. The integrated $2NO+2NC$ auxiliary contacts provide signal outputs for interlocking, control circuit logic, and status indication, all in one compact unit.

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