Overview
The Siemens 3RT2017-2KF42-1LA0 is a high-performance traction contactor designed for reliable switching of motors and power circuits in AC-3 and AC-3e applications. Engineered with a compact S00 frame size, this 3-pole contactor offers a rated operational current of 12 A and a power rating of 5.5 kW at 400V.
With a 110V DC control voltage and integrated suppressor diode, it ensures fast, safe, and interference-free operation. The contactor includes 1 NC auxiliary contact, spring-loaded terminals for secure connections, and comes with a plugged-on series resistor for enhanced voltage handling.
Key Benefit
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Reliable Motor Control: Ideal for industrial environments requiring frequent motor switching.
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Space-Saving Design: Compact S00 frame allows flexible panel installation.
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Enhanced Durability: Built-in suppressor diode extends component lifespan and suppresses voltage spikes.
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Quick & Secure Wiring: Spring-loaded terminals ensure fast and reliable electrical connections.
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Flexible Mounting: Upright mounting position provides installation versatility.
Main Features / Functions
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Contactor Type: Traction contactor for AC-3e/AC-3 use
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Rated Current: 12 A
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Power Rating: 5.5 kW @ 400V
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Poles: 3-pole
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Control Voltage: 110 V DC (0.7–1.25 × Uc)
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Integrated Components: Suppressor diode, plugged-on series resistor
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Auxiliary Contacts: 1 Normally Closed (NC)
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Terminals: Spring-loaded terminal system
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Frame Size: S00
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Mounting Position: Upright
Application
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Industrial motor switching
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Control cabinets
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Automation systems
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Railway and traction systems
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HVAC and pumping stations
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