Siemens 3RT2 Contactor 3RT2035-1AL20, 230V AC Coil, 3-Pole, 41A, 18.5kW, 3 NO Auxiliary, 400V AC

The Siemens 3RT2035-1AL20 3RT2 series contactor is a premium electromechanical switching device engineered for demanding motor control and industrial automation environments. This model is built with a 230V AC coil, enabling reliable actuation in standard industrial installations. It features three main poles with a 41A maximum contact current, allowing for robust switching capabilities essential for large machinery and system designs.

With an operational power rating up to 18.5kW, this contactor is suited for controlling medium to large motors and other high-capacity loads in construction, manufacturing, HVAC, and automation control panels. The main contacts are complemented by 1 NO and 1 NC auxiliary contacts, enabling flexible circuit configuration and sophisticated control schemes. This configuration supports not only direct switching but also feedback and interlock arrangements vital for advanced industrial setups.

The Siemens 3RT2035-1AL20 is designed for DIN rail mounting, supporting rapid and standardized integration into modular panel systems. Compact in shape with dimensions of 114mm (length), 55mm (width), and 130mm (depth), it fits efficiently into modern control cabinets without compromising accessibility or wiring space. The contactor utilizes screw clamp terminals, providing both security and ease of maintenance for connections.

Rated for up to 400V AC contact voltage, the device reliably operates in varied industrial power distribution scenarios. It can withstand operational environments from -25°C to +60°C, ensuring consistent performance across temperature extremes in HVAC plants, automated factories, and power stations. The device also features advanced safety and compliance standards, covering international certifications for use in European, American, and Asian industrial markets.

Applications for this model span motor control in manufacturing lines, process automation, heavy equipment control, HVAC system integration, and commercial electrical control boards. Its 3-pole, 3NO main contact and robust auxiliary set support direct-on-line motor starting, reversing, interlocking, and signaling tasks crucial for safe and efficient operation of automated plants.

The Siemens 3RT2035-1AL20 is part of the respected 3RT2 contactor series, renowned for durability and low-carbon manufacturing. Whether used as a core motor starter or integrated into a larger control system, it brings reliable switching, safety, and long service life to any industrial electrical installation.

For more options and complementary control gear, explore the full range of Siemens power Contactors and industrial automation solutions.