Siemens 3RT2047-1AP00 SIRIUS Power Contactor 110A, 55kW, 230V AC S3 Original Brand New

Overview: Siemens 3RT2047-1AP00 SIRIUS Power Contactor, Size S3

The Siemens 3RT2047-1AP00 is a high-performance, 3-pole SIRIUS power contactor designed for switching motors up to 55 kW at 400 V (AC-3e/AC-3 rating). As a key component in modern industrial control and motor feeder systems, this device offers reliable, compact, and long-lasting switching performance. It belongs to the SIRIUS 3RT2 series, the successor to the proven 3RT1 line.

Key Technical Specification

• Product ID: 3RT2047-1AP00
• Manufacturer: Siemens
• Series: SIRIUS 3RT2 Power Contactors
• Application: Power contactor for motor switching
• Poles: 3-pole (3 NO main contacts)
• Operating Current (Ie): 110 A (AC-3e/AC-3 at 400 V, 60°C)
• Operating Power (Pe): 55 kW (at 400 V, AC-3e/AC-3)
• Control Coil Voltage (Us): 230 V AC, 50 Hz
• Auxiliary Contacts: Integrated 1 NO (Normally Open) + 1 NC (Normally Closed)
• Connection Type: Screw terminals (main and auxiliary circuits)
• Contactor Size: S3
• Climate Resistant: Yes
• Standards: IEC and UL/CSA approved
• Compatibility: IE3/IE4-ready

Benefit & Features

1. High Reliability: Part of the modular SIRIUS system, ensuring high contact reliability and prolonged mechanical service life (typically 10 million operating cycles).
2. Compact Power: Delivers a high switching capacity (110 A / 55 kW) in a space-saving, standardized Size S3 design.
3. Simplified Wiring: Equipped with screw terminals for secure and industry-standard main and auxiliary circuit connections.
4. Integrated Auxiliaries: Includes a built-in 1 NO + 1 NC auxiliary switch block, reducing the need for external components and simplifying panel design.
5. Global Compliance: Approved for worldwide use, meeting major international standards like IEC and UL/CSA.
6. Energy Efficiency Ready: Optimized for use with modern, high-efficiency IE3 and IE4 motors.

Function

The Siemens 3RT2047-1AP00 functions as a robust electromagnetic switch primarily used to control the flow of electrical power to industrial equipment, most commonly 3-phase AC motors.

• Switching: Upon receiving a control signal (230 V AC, 50 Hz) to its coil, the contactor magnetically closes its three main Normally Open (NO) power contacts, supplying current to the load (e.g., a 55 kW motor).
• Control Feedback: The integrated 1 NO and 1 NC auxiliary contacts provide signaling and interlocking functions to the control system (e.g., PLCs, control relays), indicating the current status (Open/Closed) of the main contacts.
• Integration: It is designed to be easily combined with other SIRIUS components, such as thermal overload relays (3RU2), circuit breakers (3RV2), and link modules, to build a complete, factory-tested load feeder solution.

For more of our industrial control and automation products, visit Turll!