Siemens 3RT7017-1AF02 SIRIUS Contactor AC-3 12A, 5.5kW, 400V, 1NC Auxiliary Contact, 110V AC Coil, Screw Terminal Original Brand New

Overview: Siemens 3RT7017-1AF02 SIRIUS Contactor

The Siemens 3RT7017-1AF02 is a high-performance contactor from the SIRIUS 3RT series, designed for controlling electric motors and other resistive loads. With a compact size S00 footprint, this contactor is ideal for space-constrained applications in industrial automation, control panels, and machinery. It is rated for AC-3 applications up to 12A at 400V, providing reliable switching for motors up to 5.5kW.

This model features a single normally closed (1NC) auxiliary contact, which can be used for feedback, interlocking, or control circuit functions. The coil operates on a standard 110V AC supply at 50/60Hz, making it compatible with a wide range of industrial power systems. The screw terminals ensure a secure and reliable connection, simplifying installation and maintenance. The Siemens 3RT7017-1AF02 is a robust and dependable component, engineered to the highest standards of quality and safety.

Key Features & Benefit

• High Performance: Rated for demanding AC-3 applications with a 12A/5.5kW capacity at 400V, suitable for controlling induction motors.
• Compact Size S00: Optimizes panel space, allowing for smaller control cabinets and reduced material costs.
• Integrated Auxiliary Contact: The built-in 1NC auxiliary contact simplifies wiring and provides flexibility for complex control circuits and signaling.
• Versatile Coil Voltage: Operates on a standard 110V AC (50/60Hz) control supply, making it globally applicable.
• Secure Screw Terminals: Provides a robust and secure electrical connection, resisting vibration and ensuring long-term reliability.
• SIRIUS Family Compatibility: Part of the comprehensive Siemens SIRIUS modular system, ensuring seamless integration with other SIRIUS components like overload relays and circuit breakers.
• Durability and Reliability: Built with high-quality materials to withstand harsh industrial environments and provide a long service life.

Function

The Siemens 3RT7017-1AF02 functions as an electromagnetically operated switch. When the 110V AC control voltage is applied to the coil, it generates a magnetic field that pulls a plunger, closing the main power contacts. This allows the flow of current to the connected load (e.g., an electric motor). When the control voltage is removed, the magnetic field collapses, and the spring-loaded contacts open, interrupting the power to the load. The 1NC auxiliary contact changes state in conjunction with the main contacts, providing a signal for the control circuit.

Technical Specification

• Product Type: Contactor
• Product Number: 3RT7017-1AF02
• Manufacturer: Siemens
• Product Series: SIRIUS 3RT7
• Rated Operational Current (AC-3): 12A at 400V
• Rated Operational Power (AC-3): 5.5kW at 400V
• Coil Voltage: 110V AC, 50/60Hz
• Auxiliary Contacts: 1NC (Normally Closed)
• Terminal Type: Screw Terminals
• Size: S00
• Mounting: DIN Rail or Screw Mounting

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