Siemens 3RT2017-2LB42-1LA0 Traction Contactor 12A, 5.5 kW, 24V DC, 3-Pole, Integrated Varistor Original Brand New

Overview

The Siemens 3RT2017-2LB42-1LA0 traction contactor is engineered for reliable and efficient switching of traction motors and other industrial AC loads. Designed for AC-3e and AC-3 applications, it supports currents up to 12 A and motor power ratings of 5.5 kW at 400 V. Its 3-pole configuration, 24 V DC control voltage, and integrated varistor ensure safe, long-lasting operation in demanding industrial and transportation applications.

Key Features & Benefit

• High Reliability: Engineered by Siemens to provide long operational life in traction and industrial applications.

• Versatile Application: Suitable for AC-3e and AC-3 motors, supporting up to 5.5 kW at 400 V.

• Integrated Varistor: Protects the contactor and connected equipment from voltage spikes.

• Auxiliary Contact: 1 NC auxiliary contact for signaling and control functions.

• Easy Installation: Spring-loaded terminals with upright mounting for secure and simple wiring.

• Compact Frame Size: S00 frame ensures space-saving installation.

• Enhanced Safety: Includes a plugged-on series resistor for controlled inrush currents.

Function

• Controls traction motors and industrial AC loads.

• Provides protection against voltage spikes and surges.

• Allows integration into automated control systems via auxiliary contacts.

• Ensures efficient switching of 3-pole circuits in upright mounting positions.

Technical Specification

• Model: Siemens 3RT2017-2LB42-1LA0

• Type: Traction Contactor

• Current Rating: 12 A

• Motor Power Rating: 5.5 kW / 400 V

• Poles: 3-pole

• Control Voltage: 24 V DC

• Operating Range: 0.7–1.25 * Uc

• Auxiliary Contacts: 1 NC

• Mounting: Upright

• Frame Size: S00

• Special Features: Integrated varistor, plugged-on series resistor, spring-loaded terminals

For more Siemens SIRIUS products, including the 3RT20 series and accessories, visit Turll.