Overview
The Siemens 3RT2026-2XJ40-0LA2 is a high-performance SIRIUS 3RT2 series power contactor designed for reliable switching of motors and electrical loads in industrial applications. This contactor, part of the S0 frame size, is specifically engineered as a traction contactor, making it ideal for use in mobile and railway applications where robust and reliable operation is critical. Its compact design and advanced features ensure efficient performance and space savings in control cabinets.
Key Benefit
- Reliable Performance: Rated for AC-3e/AC-3 operation at 25 A (up to 11 kW at 400 V), it ensures dependable switching of motors and resistive loads.
- Enhanced Durability: The solid-state operating mechanism and integrated varistor provide increased lifespan and protection against voltage spikes, reducing maintenance needs.
- Versatile Control: Operates with a 72V DC coil, covering a wide voltage range of 0.7 to 1.25 times the control supply voltage (Uc), making it adaptable to various control systems.
- Space-Saving Design: The compact S0 frame size allows for high-density installations in control panels without compromising performance.
- Easy and Secure Wiring: Featuring spring-loaded terminals, this contactor offers quick, reliable, and vibration-proof connections, reducing installation time and the risk of loose connections.
- Comprehensive Monitoring: Includes one normally open (1 NO) and one normally closed (1 NC) auxiliary contact, enabling flexible integration into control and signaling circuits.
Function
The Siemens 3RT2026-2XJ40-0LA2 functions as a power switching device. It connects or disconnects an electrical load from a power source in response to a control signal. The 72V DC coil, when energized, closes the main contacts, allowing current to flow to the connected equipment.
The integrated varistor protects the coil from overvoltage spikes, and the solid-state operating mechanism ensures precise and quiet operation. The auxiliary contacts provide feedback to the control system, indicating the contactor’s status (open or closed). This makes it suitable for applications such as motor control, lighting systems, heating, and other industrial automation tasks.
Technical Specification
- Product Type: Traction Contactor
- Product Number: 3RT2026-2XJ40-0LA2
- Series: SIRIUS 3RT2
- Rated Operational Current (AC-3e/AC-3): 25 A
- Rated Power (AC-3): 11 kW at 400 V
- Poles: 3-pole
- Control Supply Voltage: 72 V DC
- Control Voltage Range: 0.7 – 1.25 * Uc
- Operating Mechanism: Solid-state
- Auxiliary Contacts: 1 NO + 1 NC
- Terminal Type: Spring-loaded terminal
- Frame Size: S0
- Special Features: Integrated varistor
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