Overview
The Siemens SIRIUS 3RT7036-1AC20 is a high-performance power contactor engineered for robust and reliable switching of three-phase motors and other industrial loads. As part of the SIRIUS modular system, this contactor offers exceptional operational reliability and a long mechanical and electrical service life. Its compact design and standardized features make it an ideal choice for a wide range of industrial applications, including motor control, switching resistive loads, and general-purpose automation tasks.
Key Benefit
- Exceptional Durability: Built to withstand demanding industrial environments, ensuring a long operational life and minimizing downtime.
- High Performance: Optimized for AC-3 switching applications, capable of handling 50A at 400V and up to 22kW, providing reliable power control.
- Efficient Installation: Features user-friendly screw terminals, allowing for quick, secure, and straightforward wiring.
- Space-Saving Design: The compact Size S2 form factor helps to optimize panel space, a critical consideration in modern control systems.
- Global Compatibility: Operates on a standard 24V AC, 50/60 Hz control voltage, making it suitable for a wide variety of power systems worldwide.
Technical Specifications / Functionality
- Product Type: Power Contactor for Motor Control (AC-3)
- Rated Operational Current (I_e): 50 A (at 400V)
- Rated Power (P_e): 22 kW (at 400V)
- Control Supply Voltage (U_s): 24 V AC, 50/60 Hz
- Number of Poles: 3-pole main contacts
- Size: S2
- Termination Type: Screw terminals for both main and auxiliary circuits.
- Auxiliary Contacts: Integrated 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts for feedback and interlocking.
- Mounting: Standard DIN rail mounting or screw mounting.
- Temperature Range: Designed to operate within a broad temperature range, ensuring reliability in various climates.
Application
The Siemens 3RT7036-1AC20 contactor is perfectly suited for a variety of applications where reliable and efficient switching is required, including:
- Starting and stopping of electric motors
- Control of heating elements and lighting systems
- Integration into control panels and machinery
- Industrial automation and process control systems
- HVAC and pumping systems
For more of our high-quality industrial products, please visit our homepage or explore our full range of Siemens SIRIUS products at turll.













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