Siemens SIRIUS 3RT2026-2AB04 Power Contactor, 25A, 11kW, 400V, 24V AC Coil, Size S0, Spring Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2026-2AB04 Power Contactor is a robust and highly reliable industrial switching device designed for controlling electric motors and other resistive loads. Part of the compact SIRIUS 3RT2 series, this 3-pole contactor is rated for $25\text{ A}$ (AC-3e/AC-3) and a maximum motor power of $11\text{ kW}$ at $400\text{ V}$.

It features an efficient $24\text{ V AC},50\text{ Hz}$ operating coil and is engineered in the space-saving Size S0 frame. A key benefit of this model is its integrated $2\text{ NO}+2\text{ NC}$ auxiliary contacts and the innovative, vibration-proof spring-loaded terminal connection technology, ensuring fast, reliable, and maintenance-free wiring.

Key Benefit

• Fast & Reliable Wiring: Utilizes advanced spring-loaded terminals for secure, shake-proof, and quick connection, significantly reducing installation and maintenance time.
• Space-Saving Design: Compact Size S0 form factor optimizes space within electrical panels and control cabinets.
• Enhanced Diagnostics: Comes equipped with a high number of integrated auxiliary contacts ($2\text{ NO}+2\text{ NC}$) and a removable auxiliary switch block for flexible control and monitoring circuit applications.
• Global Standard Compliance: Meets both AC-3 and the new energy-efficient AC-3e utilization categories, ensuring future-proof application across various industries.
• High Performance: Designed for demanding motor control applications with a high mechanical service life, typical of the reliable Siemens SIRIUS range.

Application

The Siemens 3RT2026-2AB04 contactor is ideal for applications requiring reliable on/off switching of loads, including:

• Starting and stopping $11\text{ kW}$ three-phase AC motors.
• Switching resistive loads (e.g., heating systems, lighting).
• Integration into complex control systems, motor starters, and load feeders.
• Environments where vibration resistance and rapid wiring are critical.

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