Overview
The Siemens 3MT8400-1AG07 Contactor is a high-performance, robust electrical switching device designed for demanding industrial applications. Engineered to meet the rigorous demands of AC-3 utilization categories, this 400A contactor is perfectly suited for controlling squirrel-cage motors and other resistive loads where frequent starting and stopping are required. Its substantial power handling capability of 200kW at 400V ensures reliable operation in heavy-duty environments.
This 3-pole contactor offers exceptional versatility with its integrated 4NO (normally open) and 4NC (normally closed) auxiliary contacts, providing extensive options for interlocking, signaling, and control circuit integration. The 36 VAC, 50 Hz coil ensures stable and efficient operation within specified power systems. Built to the size S12 standard, the 3MT8400-1AG07 features secure screw terminals for easy and reliable wiring, simplifying installation and maintenance.
Key Functions & Features
- Powerful AC-3 Performance: Specifically designed for motor control, offering superior switching capabilities for starting and stopping squirrel-cage motors.
- High Current & Power Rating: Handles substantial loads with a 400A current rating and 200kW power rating at 400V, making it ideal for large machinery.
- Versatile Auxiliary Contacts: Equipped with 4 normally open (4NO) and 4 normally closed (4NC) auxiliary contacts, providing flexible control and feedback options for complex circuits.
- Optimized Coil Voltage: Features a 36 VAC, 50 Hz coil, ensuring compatibility with specific low-voltage control circuits, enhancing safety and system design flexibility.
- Robust 3-Pole Design: A fundamental component for three-phase motor control, ensuring reliable power switching.
- Standardized Size S12: Adheres to the S12 frame size, facilitating integration into existing electrical panels and systems.
- Secure Screw Terminals: Provides a strong, reliable, and straightforward method for wiring connections, reducing installation time and ensuring electrical integrity.
- Siemens Quality & Reliability: Manufactured by Siemens, a global leader in industrial automation, guaranteeing high standards of quality, durability, and performance.
Application
The Siemens 3MT8400-1AG07 Contactor is an essential component for various industrial applications requiring robust motor control and power switching. Its high current and power ratings make it suitable for:
- Large Industrial Motors: Controlling motors in pumps, compressors, fans, and conveyors.
- Heavy Machinery: Powering and controlling heavy-duty equipment in manufacturing plants.
- HVAC Systems: Integration into large-scale heating, ventilation, and air conditioning systems.
- Process Control: Essential for automating and controlling various industrial processes.
- Material Handling Systems: Operating cranes, hoists, and other material transport equipment.
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