Overview: Siemens 3RT2015-2JB42 Power Contactor
The Siemens 3RT2015-2JB42 is a compact, high-performance SIRIUS 3RT20 power contactor designed for switching motors and electrical loads. This specific model is engineered for direct control via PLC outputs thanks to its 24V DC coil with a wide operating range and an integrated diode for surge suppression. Its robust design and size S00 frame make it an ideal choice for space-saving control panel applications. Featuring spring-loaded terminals, it ensures fast, reliable, and vibration-proof wiring.
Benefit
- Reliable PLC Integration: Specifically designed with a 24V DC coil and integrated diode, making it perfectly suited for direct connection to PLC outputs without the need for additional suppression components.
- Space-Saving Design: The compact Size S00 frame is ideal for high-density control cabinet layouts.
- Fast & Secure Wiring: Spring-loaded terminals offer significant time savings during installation and ensure a long-term, vibration-resistant, and maintenance-free electrical connection.
- High Performance: Provides dependable switching for motors up to 3 kW at 400V.
- Global Compliance: Part of the SIRIUS modular system, ensuring compliance with international standards (e.g., IEC, UL/CSA).
Function
The Siemens 3RT2015-2JB42 Power Contactor functions as an electromechanical switching device. It uses the 24 V DC coil voltage to magnetically close the three main power contacts, allowing power to flow to a load (typically a 3-phase motor). The integrated 1 NC auxiliary contact provides feedback or interlocking functionality in the control circuit. It is primarily used for:
- Switching 3-Phase Motors (Direct-On-Line starting).
- Switching resistive loads (AC-1).
- Controlling lighting and heating systems.
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