High-Performance Siemens SIRIUS 3RT2038-3AF04 Power Contactor
The Siemens 3RT2038-3AF04 is a robust, 3-pole power contactor from the highly reliable SIRIUS 3RT2 series, engineered for switching motors and other electrical loads. With an operational current of 80 A () and a maximum operational power of 37 kW at 400 V, this contactor is built for demanding industrial environments.
It features a control voltage of 110 V AC (50 Hz) and an integrated, removable auxiliary switch block with 2 NO + 2 NC contacts for maximum system flexibility. The main power circuit uses secure screw terminals, while the control and auxiliary circuits utilize time-saving, vibration-proof spring-loaded terminals. Its compact Size S2 design makes it an ideal choice for efficient panel construction.
Key Benefit
- Reliable Motor Control: Rated for and up to (), offering exceptional performance for a wide range of motor applications.
- Time-Saving Wiring: Utilizes spring-loaded terminals for the control and auxiliary circuits, ensuring fast, maintenance-free, and vibration-proof connections.
- High Flexibility: Includes a standard 2 NO + 2 NC auxiliary contact configuration, easily removable for configuration changes or diagnostics.
- Modular Design: Part of the Siemens SIRIUS modular system, ensuring seamless coordination with overload relays, circuit breakers, and other components.
- Global Standard: Approved for worldwide use (IEC, UL/CSA), making it suitable for international machine building and plant installation.
Functions & Features
The Siemens 3RT2038-3AF04 performs the function of safely switching electrical power to 3-phase loads, most commonly motors, by remote control. Its key features include:
- SIRIUS 3RT2 Contactor: A compact, high-contact-reliability solution for low-voltage switching.
- Dual-Terminal Technology: Combines robust screw terminals for high-current main circuits with fast, reliable spring-loaded terminals for control wiring.
- Removable Auxiliary Switch: Allows for easy replacement or extension without altering the main contactor unit.
- Low Energy Losses: Efficient design leads to lower power loss (typically at rated current), contributing to energy efficiency in your panel.
Maximize your system reliability and efficiency with the Siemens 3RT2038-3AF04 Power Contactor. Order now! For more our products visit Turll.













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