Overview
The Siemens 3MT8012-1AH00 Contactor is a highly efficient and exceptionally compact solution designed for controlling various electrical loads in industrial and commercial environments. Engineered for AC-3 utilization, this dependable 12A/5.5kW, 400V contactor ensures precise and safe power switching for smaller motors and inductive loads. With its versatile AC 48V, 50/60Hz coil and ultra-compact size S00, the Siemens 3MT8012-1AH00 is an ideal choice for control circuits where space-saving designs are paramount and external auxiliary contacts can be added as needed.
Key Features
- Optimal Current & Power Rating: Rated for 12A (AC-3) and capable of handling up to 5.5kW at 400V, making it perfectly suited for light to medium-duty motor control and general electrical loads.
- Versatile Coil Voltage: Equipped with an AC 48V, 50/60Hz coil, providing excellent compatibility with a variety of control system designs and global power grid frequencies.
- Basic Configuration (Without Auxiliary Contacts): This contactor is supplied without built-in auxiliary contacts, offering a cost-effective base unit for applications where auxiliary contacts are not required or can be flexibly added externally.
- Reliable 3-Pole Design: Ensures secure and efficient switching of three-phase power, essential for the dependable operation of industrial machinery.
- Ultra-Compact Size S00: Designed with the smallest S00 size to maximize panel space efficiency, making it perfectly suited for compact enclosures and distributed control systems.
- Secure Screw Terminals: Provides highly reliable, robust, and straightforward wiring connections, ensuring ease of installation and long-term stability in diverse applications.
- Siemens Quality & Durability: Manufactured by Siemens, guaranteeing a high standard of engineering, proven reliability, and extended operational life in typical industrial environments.
Function & Application
The primary function of the Siemens 3MT8012-1AH00 Contactor is to safely and effectively control electrical circuits for various industrial and commercial equipment. Its 3-pole configuration makes it an excellent choice for direct-on-line (DOL) starting and stopping of three-phase induction motors up to 5.5kW, as well as managing resistive or inductive loads within control systems. While this specific model is supplied without integrated auxiliary contacts, it provides a fundamental switching solution, allowing users to integrate external auxiliary blocks if more complex control logic or feedback is required. This compact motor contactor is widely used in applications such as:
- Small to medium-sized motor control panels
- Basic machine automation systems
- Heating elements and lighting control in industrial settings
- Pumping and fan systems for lighter loads
- Conveyor systems where basic on/off control is sufficient
- Building management systems for light electrical loads
- Control circuits specifically designed for a 48V AC supply
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