Siemens SIRIUS 3RT2035-3SF30 Power Contactor, 41A, 18.5kW, Size S2, Spring-Loaded/Screw Terminal Original Brand New

Overview

The Siemens 3RT2035-3SF30 is a high-performance, 3-pole SIRIUS 3RT20 power contactor designed for reliable switching of motors and other industrial loads. As part of the SIRIUS modular system, this size S2 contactor offers a compact design, excellent performance, and high contact reliability. It is engineered to handle demanding operational environments and is ideal for integration into load feeders and motor starter assemblies.

Benefit & Advantages

• High Operational Reliability: Designed for demanding industrial applications with high contact reliability and prolonged electrical service life.
• Space-Saving Design (Size S2): Offers a compact footprint for efficient use of control cabinet space.
• Flexible Control: Features a wide-range control voltage of $83-150\text{ V AC/DC}$, simplifying ordering and stocking while ensuring global applicability.
• Enhanced Surge Protection: The integrated varistor protects the coil and control electronics from voltage peaks, increasing system robustness.
• Dual-Terminal Technology: Combines screw terminals for robust main circuit connection and spring-loaded terminals for fast, vibration-proof, and maintenance-free wiring of control and auxiliary circuits.
• Optimal for Safety Applications: The F-PLC-IN feature indicates suitability for fail-safe applications, ensuring a secure interface to a safety PLC.
• Modular System Compatibility: Fully compatible with the SIRIUS modular system, allowing easy combination with other components like overload relays and function modules.
• Global Standards Compliance: Approved worldwide (e.g., IEC, UL/CSA), making it suitable for international machine building and plant engineering.

Function / Application

The Siemens 3RT2035-3SF30 power contactor is primarily used as a switching device in various industrial control applications:

1. Motor Switching: Directly starting and stopping 3-phase AC induction motors up to $18.5\text{ kW}$ (at $400\text{ V}$).
2. Load Control: Switching of resistive loads, heating elements, and general power circuits.
3. Safety Circuits: Used in conjunction with safety PLCs and components due to the F-PLC-IN interface, ensuring reliable shutdown or control in safety-related machine parts.
4. Integration into Feeders: Forms the core switching element in direct-on-line (DOL) starters and reversing combinations when combined with a thermal overload relay.

For more information on the Siemens SIRIUS 3RT20 series and to explore our full range of industrial control products, visit turll.