Overview
The Siemens 3MT8400-1AQ27 is a robust and high-performance AC-3 contactor designed for demanding industrial applications. Engineered to handle significant power loads, this 3-pole contactor is rated for 400A at 400V (200kW) and operates on a 380 VAC, 50/60 Hz control voltage. Its large S12 size and secure screw terminals ensure reliable connections and long-term durability in heavy-duty switching operation. Featuring a versatile configuration of 4 normally open (NO) and 4 normally closed (NC) auxiliary contacts, the 3MT8400-1AQ27 provides exceptional flexibility for complex control circuit.
Key Benefit
- High Power Handling: Rated for 400A and 200kW, making it suitable for controlling large motors and resistive load.
- Reliable Performance: Siemens engineering ensures consistent and safe operation in critical industrial environment.
- Versatile Auxiliary Contacts: 4NO + 4NC contacts offer extensive options for interlocking, signaling, and control integration.
- Robust Construction (Size S12): Built for durability and longevity in challenging industrial setting.
- Secure Connections: Screw terminal provide a strong and reliable electrical connection, minimizing maintenance.
- Global Compatibility: Operates on common 380 VAC, 50/60 Hz power supplies.
Function
The Siemens 3MT8400-1AQ27 contactor serves as a crucial electrical switch for various industrial applications, including:
- Motor Control: Efficiently start, stop, and reverses large AC motor (AC-3 duty).
- Load Switching: Controls the power supply to high-current resistive and inductive load.
- Power Distribution: Acts as a main switch or sub-switch in electrical distribution panel.
- Automation System: Integrates seamlessly into automated control systems requiring robust switching capabilities.
- Safety Circuit: Can be incorporated into emergency stop or safety interlocking system.
Application
- Heavy Industrial Machinery
- HVAC System
- Pumping Station
- Conveyor System
- Mining Equipment
- Manufacturing Plant
- Power Generation
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