Siemens 3RT2026-2AF04 SIRIUS Power Contactor, 25A, 11kW, 3-Pole, 110V AC Coil, Size S0, Spring-Loaded Terminal Original Brand New

Overview: Siemens SIRIUS 3RT2026-2AF04 Power Contactor

The Siemens 3RT2026-2AF04 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT2 series. Engineered for switching motors and other electrical loads, this reliable device is rated for 25 A (AC-3e/AC-3) and 11 kW at 400 V. It features a control voltage of 110 V AC at 50 Hz and is designed in the compact Size S0 for efficient space utilization in control cabinets.

The contactor utilizes spring-loaded terminals for fast, vibration-proof, and maintenance-free wiring, making it ideal for demanding industrial automation environments. It comes equipped with a total of 4 integrated auxiliary contacts (2 NO + 2 NC), including a removable auxiliary switch block, providing enhanced functionality for control and signaling circuits.

Benefit

• Fast & Secure Wiring: The spring-loaded terminal connections (also known as spring-type terminals) significantly reduce wiring time and offer a highly reliable, vibration-proof connection, reducing the need for maintenance.
• High Performance in Compact Design: The Size S0 form factor delivers 11 kW switching capacity with minimal footprint, saving valuable space in your control panel.
• Enhanced Control: The integrated 2 NO + 2 NC auxiliary contacts provide extensive options for interlocking, signaling, and control circuits without the need for additional side-mounted blocks.
• Global Standard: Part of the modular Siemens SIRIUS system, ensuring product compatibility, global approvals (IEC and UL/CSA), and climate resistance for worldwide application.
• IE3/IE4 Ready: Optimized for use with high-efficiency motors.

Function

The Siemens 3RT2026-2AF04 functions as an electromechanical switching device primarily used to switch and control 3-phase AC motors.

1. Motor Control: It reliably switches the main circuit of a 3-phase motor up to 11 kW / 25 A upon receiving the 110 V AC control signal at its coil terminals.
2. Safety & Isolation: Provides a safe means of connecting and disconnecting power to the load.
3. Signaling & Interlocking: The integrated 2 NO and 2 NC auxiliary contacts are used for feedback to the PLC or control system, as well as for implementing safety interlocks in motor starting circuits (e.g., reversing starters or star-delta circuits).

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