Siemens SIRIUS 3RT2026-1AN20 Power Contactor 25A, 11kW, 220V AC Coil, Size S0 Original Brand New

Overview: Siemens SIRIUS 3RT20 Power Contactor (3RT2026-1AN20)

The Siemens 3RT2026-1AN20 is a high-performance 3-pole power contactor from the globally recognized SIRIUS 3RT2 series, engineered for reliable switching of electric motors and other power loads. Designed for industrial control applications, this contator is part of the efficient, space-saving SIRIUS modular system, facilitating fast and flexible control cabinet construction.

This specific model is a Size S0 device, offering robust performance in a compact footprint. It is suitable for applications requiring a maximum operational current of 25 Amperes (AC-3) for motor loads up to 11 kW at 400 V.

Benefit

• Compact & Modular Design: As part of the SIRIUS modular system, the Size S0 contactor saves valuable space in the control cabinet and integrates seamlessly with other SIRIUS components (e.g., thermal overload relays, circuit breakers).
• High Reliability & Long Life: Features a typical mechanical service life of 10 million operating cycles, ensuring prolonged endurance and high contact reliability, even in extreme conditions.
• IE3/IE4 Ready: Optimized for switching modern, highly efficient IE3 and IE4 motors, ensuring future-proof motor control solutions.
• Worldwide Approval: Climate-resistant and approved for worldwide use (e.g., IEC and UL/CSA), making it suitable for global applications.
• Easy Wiring: Equipped with reliable screw terminals for secure and straightforward connection of the main and control circuits. Integrated auxiliary contacts (1 NO + 1 NC) simplify the overall control design and wiring complexity.

Function

The 3RT2026-1AN20 power contactor is primarily used for switching and controlling 3-phase electric motors in various industrial processes. It performs the core function of connecting and disconnecting the motor from the power supply under normal and operational conditions (AC-3, AC-3e).

Application

• Starting, stopping, and reversing motors for pumps, fans, compressors, and conveyer systems.
• General power switching of resistive loads (AC-1) up to $40\text{ A}$ at $400\text{ V}$.
• Integration into complex motor feeder solutions alongside motor protection circuit breakers and thermal overload relays.

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