Overview
The Siemens 3RT2015-2QB41 SIRIUS power contactor is a high-performance, compact component designed for reliable switching of electric motors and other industrial loads. As part of the SIRIUS modular system, it offers a robust and efficient solution for control circuits. This specific model features a 3-pole configuration, a rated current of 7 A for AC-3e/AC-3 applications, and a switching capacity of 3 kW at 400 V.
Its 24 V DC control voltage with a wide operating range (0.7-1.25* Uc) and an integrated varistor for surge protection ensures reliable operation in demanding environments. The spring-loaded terminal design allows for fast, secure, and vibration-resistant wiring without the need for tools, making installation and maintenance highly efficient.
Benefit
- Reliable Performance: Engineered by Siemens, a leader in industrial automation, this contactor provides consistent and durable performance for critical applications.
- Space-Saving Design: The compact S00 frame size helps to optimize panel space, enabling more efficient and smaller control cabinet layouts.
- Fast and Secure Wiring: Spring-loaded terminals offer a quick, tool-free connection that is highly resistant to vibration, ensuring long-term operational stability and reduced maintenance time.
- Enhanced Circuit Protection: The integrated varistor protects the control circuit from voltage spikes, extending the lifespan of the contactor and other sensitive components.
- Versatile Application: Ideal for switching a wide range of loads, including AC motors, heaters, and lighting, in various industrial settings.
Function
- Switching: Controls the flow of electrical power to a load, acting as a remote-controlled switch.
- Motor Control: Serves as a primary component in motor starter circuits for starting, stopping, and reversing motors.
- Auxiliary Signaling: The built-in 1 NO (Normally Open) auxiliary contact provides feedback on the contactor’s status to the control system.
- Surge Suppression: The pre-mounted varistor absorbs and dissipates transient voltage spikes on the coil, preventing damage to the coil and the control circuit.
Technical Specification
- Product Type: Power Contactor
- Product Number: 3RT2015-2QB41
- Series: SIRIUS 3RT2
- Poles: 3-pole
- Operating Current (AC-3e/AC-3): 7 A
- Rated Power (AC-3e/AC-3): 3 kW at 400 V
- Control Voltage: 24 V DC
- Control Voltage Range: 0.7 to 1.25 * Uc (Rated Control Supply Voltage)
- Auxiliary Contacts: 1 NO (Normally Open)
- Connection Type: Spring-loaded terminals
- Frame Size: S00
- Special Features: Varistor for surge suppression, no provision for additional auxiliary switch block.
For more our products visit turll












Reviews
There are no reviews yet.