Siemens SIRIUS 3RT2035-3AH00 Power Contactor Size S2, 41A, 18.5kW, 48V AC Coil, Spring-Loaded Terminal Original Brand New

Overview: Siemens SIRIUS 3RT2035-3AH00 Power Contactor

The Siemens SIRIUS 3RT2035-3AH00 is a high-performance power contactor engineered for reliable switching of motors and resistive loads. Part of the renowned SIRIUS modular system, this size S2 contactor is designed for demanding industrial applications. It combines robust electrical characteristics with user-friendly features like spring-loaded terminals for quick and secure installation. Rated for a current of 41 A and a power of 18.5 kW at 400 V, it’s the ideal component for your control and automation systems.

Key Features & Benefit

• High-Performance Switching: Rated for AC-3e/AC-3 operation, this contactor reliably switches motors up to 18.5 kW, ensuring stable and efficient performance.
• Compact & Modular Design: As part of the SIRIUS family, it offers a space-saving design that integrates seamlessly with other SIRIUS components, simplifying panel layout and wiring.
• Efficient and Secure Connections: The main circuit utilizes reliable screw terminals, while the control and auxiliary circuits feature innovative spring-loaded terminals. This combination ensures a vibration-proof, gas-tight connection, significantly reducing wiring time and maintenance.
• Integrated Auxiliary Contacts: Equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts, providing essential feedback and control signals without the need for additional modules.
• Wide Application Range: Suitable for a wide variety of motor control applications, including pumps, fans, compressors, and conveyors, in industries ranging from manufacturing to HVAC.

Technical Specification

• Product Number: 3RT2035-3AH00
• Product Type: Power Contactor, AC-3e/AC-3
• Rated Operational Current (Ie): 41 A (at up to 60 °C)
• Rated Operational Power (Pe): 18.5 kW at 400 V
• Number of Poles: 3-pole
• Coil Voltage: 48 V AC, 50 Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Main Circuit Connections: Screw Terminal
• Control/Auxiliary Circuit Connections: Spring-Loaded Terminal
• Contactor Size: S2
• Product Family: SIRIUS 3RT2

Function

The Siemens 3RT2035-3AH00 functions as an electrically operated switch for a power circuit. When the 48V AC coil is energized, it generates an electromagnetic force that closes the main contacts, allowing electrical current to flow to a load (e.g., a motor). When the coil is de-energized, the contacts open, interrupting the current flow.

The integrated auxiliary contacts change state along with the main contacts, providing a crucial signal for interlocking, status indication, or control logic in automation systems. The spring-loaded terminals on the control and auxiliary side ensure a permanent, low-resistance connection even under high vibration.

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