Overview
The Siemens 3MT8080-1AF00 Contactor is a robust and reliable AC-3 Contactor designed for demanding industrial applications. This high-performance Siemens contactor is engineered for efficient switching of motors and other resistive loads, making it an essential component for various control circuits. With its compact size S3 footprint and secure screw terminal connections, the 3MT8080-1AF00 ensures dependable operation and straightforward installation in your electrical panels.
Key Features
- High Power Rating: Capable of handling significant loads with an 80 kW (AC-3, 400V) / 37 kW (AC-3, 230V) power rating, ideal for medium to heavy-duty motor control.
- Versatile AC-3 Application: Specifically designed for AC-3 duty, ensuring optimal performance for starting squirrel-cage motors and switching off after the motor has reached full speed.
- Optimal Voltage Compatibility: Operates seamlessly with a 400V main circuit voltage and features a precise 110 VAC, 50 Hz control coil voltage for reliable activation.
- 3-Pole Configuration: Provides effective control for three-phase electrical systems, offering robust switching capabilities.
- Compact Size S3: Despite its powerful capabilities, the S3 size contactor offers a space-efficient design for integration into diverse industrial enclosures.
- Secure Screw Terminals: Equipped with durable screw terminals for strong, vibration-resistant connections, simplifying wiring and enhancing safety.
- Genuine Siemens Quality: As a Siemens electrical component, the 3MT8080-1AF00 guarantees exceptional reliability, longevity, and adherence to global industry standards.
Function
The Siemens 3MT8080-1AF00 Contactor serves as an electrically operated switch for a power circuit. Its primary function is to safely and efficiently control the flow of electrical current to connected loads, typically electric motors. When the 110 VAC control voltage is applied to the coil, it energizes an electromagnet, closing the main 3-pole contacts and allowing power to flow. Upon de-energization, the contacts open, interrupting the circuit. This makes it crucial for motor starting, stopping, and protection in industrial machinery, HVAC systems, and other automated processes.
Application
The Siemens 3MT8080-1AF00 is an ideal choice for:
- Motor control circuits in industrial automation
- HVAC systems
- Pumping stations
- Conveyor systems
- Machine tools
- General industrial control applications requiring a reliable 80kW contactor with 110 VAC control.













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