Overview: Siemens SIRIUS 3RT1075-2NP36 High-Performance Power Contactor
The Siemens 3RT1075-2NP36 is a robust, 3-pole SIRIUS 3RT10 power contactor engineered for the reliable switching of motors and other high-current loads up to 400 A (AC-3e/AC-3) and 200 kW at 400 V. This high-feature contactor is part of the renowned Siemens SIRIUS modular system, ensuring maximum flexibility and performance in motor control applications.
Its advanced electronic drive (coil) supports a wide control voltage range of 200-277 V AC/DC and is PLC-compatible with a dedicated 24 V DC input, providing precise and energy-efficient operation. Designed for modern industrial environments, the main circuit uses busbar connection, while the control and auxiliary circuits utilize convenient spring-loaded terminals for fast, vibration-proof wiring.
Benefits & Functions
- High Performance: Capable of handling significant loads with a 400 A rated operating current and 200 kW power output, ideal for large industrial motors.
- Global Versatility: The wide-range 200-277 V AC/DC electronic coil simplifies engineering and stocking, ensuring reliable operation across various supply voltages.
- PLC Integration: Features a dedicated 24 V DC input for direct and seamless connection to a programmable logic controller (PLC) for advanced control.
- Fast & Secure Wiring: Spring-loaded terminals on the control and auxiliary circuits ensure quick, maintenance-free, and vibration-proof connections, boosting operational uptime.
- Safety & Monitoring: Integrated 2 NO + 2 NC auxiliary contacts provide essential feedback and interlocking capabilities for safe and comprehensive circuit control.
- Space-Saving: Designed as part of the SIRIUS modular system for efficient panel layout and high packing density.
Industries & Applications
The Siemens 3RT1075-2NP36 is a preferred choice for heavy-duty applications, including:
- Large-scale Motor Control Centers (MCCs)
- Pump, fan, and compressor drives
- Industrial manufacturing and processing machinery
- Building automation systems
- Energy and infrastructure projects
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