Overview
The Siemens 3RT2018-2LJ82-0LA0 is a high-performance SIRIUS traction contactor designed for demanding applications. This compact and robust 3-pole contactor, from the S00 frame size, is engineered for reliable switching of AC motors in a wide range of industrial environments. Its specialized design for traction applications, combined with a 72V DC coil, makes it ideal for use in mobile and low-voltage DC systems where stable and consistent performance is critical.
The contactor features a rated operational current of 16 A for AC-3 and AC-3e applications and is capable of handling motor loads up to 7.5 kW at 400 V. A key feature is the integrated varistor, which provides essential surge protection for the coil, extending the lifespan and ensuring reliable operation. The spring-loaded terminals offer a secure and vibration-resistant connection, simplifying wiring and reducing maintenance. Additionally, the pre-installed series resistor further optimizes its performance for specific applications.
Benefit
- High Reliability: Built with Siemens’ renowned quality, this contactor provides consistent and long-lasting performance, reducing downtime and maintenance costs.
- Space-Saving Design: The compact S00 frame size allows for installation in tight spaces, making it suitable for modern control panels and machinery.
- Enhanced Protection: The integrated varistor protects the coil from voltage surges, safeguarding the control circuit and increasing the device’s durability.
- Vibration-Resistant Connections: Spring-loaded terminals ensure a secure, maintenance-free connection, ideal for traction applications where vibrations are common.
- Versatile Application: Suitable for a wide range of AC motor switching tasks, particularly those requiring a 72V DC control voltage.
Key Functions & Features
- Product Number: 3RT2018-2LJ82-0LA0
- Product Type: Traction Contactor
- Rated Operational Current (AC-3e/AC-3): 16 A
- Motor Power (at 400V): 7.5 kW
- Number of Poles: 3-pole
- Control Supply Voltage: 72 V DC
- Voltage Tolerance: 0.7 to 1.25 times the rated control voltage (Uc)
- Coil Protection: Integrated varistor
- Auxiliary Contacts: 1 normally closed (NC)
- Terminal Type: Spring-loaded terminal
- Frame Size: S00
- Additional Components: Plugged-on series resistor
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