Siemens SIRIUS 3RT2023-2BM40 Power Contactor, 9A, 4kW, 3-Pole, 220V DC Coil, Size S0, Spring-Loaded Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2023-2BM40 is a high-performance, compact 3-pole power contactor designed for reliable switching of electric motors and other loads up to 4 kW at 400 V (or 9 A for AC-3/AC-3e). As part of the globally approved SIRIUS 3RT2 series, this contactor offers exceptional operational efficiency and flexibility for industrial control systems.

This specific model features a 220 V DC operating coil and convenient spring-loaded terminals for fast, vibration-proof, and maintenance-free wiring. It is built in the compact Size S0 frame, making it a perfect solution where space and reliability are critical.

Key Features / Technical Specification

• Product ID: 3RT2023-2BM40
• Series: SIRIUS 3RT2
• Contactor Type: Power Contactor for Motor Switching
• Main Poles: 3-pole
• Operating Current (AC-3/AC-3e): 9 A
• Motor Power (AC-3): 4 kW at 400 V
• Coil Voltage: 220 V DC
• Auxiliary Contacts (Integrated): 1 NO (Normally Open) + 1 NC (Normally Closed)
• Terminal Type: Spring-Loaded Terminal (Fast, secure connection)
• Size: S0 (Compact design)
• Standards Compliance: IEC, UL/CSA (Worldwide use)
• Design: Climate-resistant, high contact reliability

Benefit

• Maximized Uptime: High mechanical and electrical service life typical of the SIRIUS 3RT2 series ensures long-term operational reliability.
• Fast, Secure Wiring: Spring-loaded terminals significantly reduce wiring time and prevent connection loosening under vibration, minimizing maintenance and troubleshooting.
• Space-Saving Design: The compact Size S0 frame allows for higher packing density in control cabinets.
• Global Compatibility: Internationally approved (IEC, UL/CSA) and suitable for a wide range of industrial applications worldwide.
• Energy Efficiency: Optimized coil power consumption reduces overall operating costs.

Function & Application

The Siemens 3RT2023-2BM40 contactor is primarily used for switching 3-phase AC motors and resistive loads in industrial control and automation systems.

• Function: Remote make-and-break switching of circuits under normal operation, especially for motor control.
• Applications:
  • Start/Stop control of small to medium 3-phase asynchronous motors.
  • Integration into motor starters, load feeders, and control panels.
  • Switching heating, lighting, and general power loads.

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