Overview
The Siemens 3RT2035-3KB44-3MA0 is a high-performance power contactor designed for reliable motor control and switching operations in industrial automation systems. Engineered by Siemens, a global leader in electrical and automation technology, this 3-pole contactor ensures optimal efficiency, long service life, and compatibility with PLC outputs.
Built to meet demanding AC-3 and AC-3e applications, the 3RT2035-3KB44-3MA0 offers superior performance, safe operation, and robust connection technology, making it an ideal choice for industrial environments and control panel applications.
Key Features & Functions
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Type: Power Contactor
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Rated Operational Current (AC-3/AC-3e): 41 A
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Power Rating: 18.5 kW / 400 V
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Poles: 3-Pole
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Coil Voltage: 24 V DC (0.8–1.2 × Uc)
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Integrated Varistor: Provides overvoltage protection for enhanced reliability
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Auxiliary Contacts: 2 NO + 2 NC
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Main Circuit Connection: Screw terminal
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Control & Auxiliary Circuit Connection: Spring-loaded terminal
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Frame Size: S2
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Design: Suitable for PLC outputs and includes a captive auxiliary switch
Benefit
- High Reliability: Designed with Siemens quality standards for maximum durability and safety.
- Integrated Varistor Protection: Safeguards against voltage spikes and electrical disturbances.
- Ease of Installation: Screw terminals and spring-loaded connections ensure fast, secure wiring.
- PLC Compatibility: Fully optimized for programmable logic controllers, ensuring efficient control.
- Compact Frame (S2): Saves space in control cabinets without compromising performance.
- Energy Efficient: Low coil power consumption and reduced heat dissipation.
Application
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Motor control centers
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Industrial automation systems
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HVAC and pump control systems
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Conveyor systems
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Control panels and switchboards
For more of our high-quality industrial automation products, including the full range of Siemens SIRIUS contactors and components, visit Turll today!













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