Siemens 3RT2026-2AL20 SIRIUS Power Contactor, 25A, 11kW, 230V AC Original Brand New

Overview: Siemens 3RT2026-2AL20 SIRIUS 3RT2 Power Contactor

The Siemens 3RT2026-2AL20 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT2 series. Engineered for switching motors and other resistive loads in industrial automation systems, this device combines a compact Size S0 design with robust performance. It is rated for an operational current of 25 A (AC-3e/AC-3) and a power rating of 11 kW at 400 V.

A standout feature is the inclusion of fast and secure spring-loaded terminals, providing a vibration-proof and maintenance-free connection, significantly reducing wiring time compared to traditional screw terminals. The contactor is equipped with a $230\text{ V AC, }50/60\text{ Hz}$ control coil and integrated auxiliary contacts ($1\text{ NO}+1\text{ NC}$), making it a versatile and essential component for modern industrial control panels.

Key Technical Specifications

• Product Number: 3RT2026-2AL20
• Manufacturer: Siemens
• Series: SIRIUS 3RT2
• Contactor Type: Power Contactor (Motor Switching)
• Utilization Category: AC-3e / AC-3
• Rated Operational Current (Ie​): 25 A
• Rated Operational Power (at 400 V): 11 kW
• Number of Poles: 3-pole
• Control/Coil Voltage: $230\text{ V AC, }50/60\text{ Hz}$
• Auxiliary Contacts: $1\text{ NO}+1\text{ NC}$ (Integrated)
• Connection Type: Spring-loaded terminal
• Contactor Size: S0

Benefits & Advantages

1. Fast & Reliable Wiring: Spring-loaded terminals ensure a quick, secure, and permanent connection, drastically cutting installation and maintenance costs while offering high vibration resistance.
2. Space-Saving Design: The compact Size S0 form factor allows for efficient use of space within control cabinets, which is critical in modern industrial applications.
3. Global Compliance: Part of the SIRIUS modular system, the 3RT2 series is known for worldwide approvals (e.g., IEC, UL/CSA) and high climate resistance.
4. High Durability: Typical mechanical service life of $10,000,000$ switching cycles ensures long-term operational reliability.
5. IE3/IE4 Ready: Optimized for use with high-efficiency motors, supporting energy-saving compliance in motor applications.

Function & Application

The Siemens 3RT2026-2AL20 is primarily used for switching and controlling 3-phase AC motors (AC-3 duty) up to $11\text{ kW}$. It can also be used for switching non-motor loads such as lighting, heating, and other resistive loads (AC-1 duty up to 40 A).

Typical applications include:

• Controlling pumps, fans, and compressors.
• Integrating into motor starter combinations (DOL starters, reversing starters).
• General load switching in machinery and plant engineering.

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