Siemens 3RT2026-1AP00 Contactor, 25A, 11kW, 230V AC, S0, SIRIUS Original Brand New

Overview

The Siemens SIRIUS 3RT2026-1AP00 is a high-performance, 3-pole power contactor engineered for efficient motor switching applications in industrial control systems. As a key component of the SIRIUS modular system, this size S0 contactor offers reliable performance for loads up to 25A (AC-3e/AC-3) and 11 kW at $400\text{ V}$.

It features a $230\text{ V AC},50\text{ Hz}$ operating coil, making it ideal for standard electrical grids. Integration is simplified with built-in $1\text{ NO}+1\text{ NC}$ (Normally Open + Normally Closed) auxiliary contacts and secure screw terminals. This model replaces the proven 3RT1 series, offering enhanced efficiency and modularity.

Key Technical Specification

• Product Number: 3RT2026-1AP00
• Manufacturer: Siemens
• Product Series: SIRIUS 3RT2
• Contactor Size: S0
• Poles: 3-pole
• Operational Current (Ie​) (AC-3e/AC-3, $400\text{ V}$): $25\text{ A}$
• Operational Power (Pe​) (AC-3, $400\text{ V}$): $11\text{ kW}$
• Control/Coil Voltage (Us​): $230\text{ V AC},50\text{ Hz}$
• Auxiliary Contacts (Integrated): $1\text{ NO}+1\text{ NC}$
• Terminal Type: Screw Terminal
• Motor Compatibility: Suitable for standard, IE2, highly efficient IE3, and IE4 motors.
• Standards/Compliance: IEC, UL, CSA, RoHS compliant.
• Operating Temperature Range: −25∘C to +60∘C
• Mechanical Life: Up to $10,000,000$ operating cycles (typical).

Benefit

• High Reliability: Designed for millions of trouble-free switching cycles, ensuring maximum plant uptime.
• Space-Saving Design (Size S0): Compact footprint allows for high-density control cabinet installations, minimizing panel space and cost.
• Simplified Wiring: Features user-friendly screw terminals for secure and straightforward electrical connection of main and auxiliary circuits.
• Integrated Signalling: Includes $1\text{ NO}+1\text{ NC}$ auxiliary contacts for interlocking circuits, status indication, or remote signalling, reducing the need for external components.
• Global Standard: Part of the industry-leading Siemens SIRIUS modular system, ensuring broad compatibility and easy access to accessories.

Function and Application

Function: The 3RT2026-1AP00 acts as an electrically controlled switch, primarily used to safely and reliably make or break electrical power to a load, most commonly a motor. It is designed for switching 3-phase AC motors and other resistive loads.

Application

• Motor Control Circuits: Switching ON/OFF for pumps, fans, compressors, conveyors, and machine tool drives.
• Heating and Lighting: Controlling high-current heating elements or large lighting systems.
• Automation Systems: Used in various industrial machinery and plant automation as a core switching component.
• Main Contactors: Employed as the main switch in star-delta combinations or reversing contactor assemblies.

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