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 .
It features a operating coil, making it ideal for standard electrical grids. Integration is simplified with built-in (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 () (AC-3e/AC-3, ):
- Operational Power () (AC-3, ):
- Control/Coil Voltage ():
- Auxiliary Contacts (Integrated):
- 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: to
- Mechanical Life: Up to 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 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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