SIRIUS 3RT2017-2LJ82-0LA0 Traction Contactor, 12A, 5.5kW, 72V DC Coil, Spring Terminal, Size S00 Original Brand New

Overview

The Siemens 3RT2017-2LJ82-0LA0 is a highly reliable SIRIUS 3RT20 traction contactor designed for demanding switching applications, particularly in railway and mobile equipment (traction applications). This compact, 3-pole contactor is engineered for high performance in both AC-3e and AC-3 switching categories, offering an optimal combination of size (Frame Size S00) and power output. Its 72V DC coil with an extended operating range (0.7−1.25×Uc​), integrated varistor, and plugged-on series resistor ensure reliable operation and coil protection in fluctuating DC environments.

Benefit

• Extended Coil Range: The 0.7−1.25×Uc​ operating range combined with the 72V DC coil is specifically suited for applications with wide voltage tolerances, such as those found in traction and railway systems.
• High Reliability: The integrated varistor provides robust protection against overvoltage peaks and surges, extending the coil’s lifespan and ensuring operational continuity.
• Vibration-Proof Connection: Spring-loaded terminals offer a secure, maintenance-free, and time-saving wiring solution that resists loosening under high-vibration conditions.
• Space-Saving Design: The compact Size S00 housing minimizes panel space requirements in control cabinets.

Function

• Motor Switching: Primarily used for switching 3-phase motors up to 5.5 kW at 400 V (AC-3e/AC-3), which is essential for motor control in mobile and industrial applications.
• Auxiliary Control: The integrated 1 NC auxiliary contact allows for direct feedback and interlocking in the control circuit.
• High DC Compatibility: Optimized for DC power systems via the special 72V DC coil and plugged-on series resistor, providing reliable control in DC voltage environments.

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