Siemens SIRIUS 3RT2023-2BB40 Power Contactor, 9A, 4kW, 24V DC, S0, Spring Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2023-2BB40 is a high-performance, 3-pole power contactor designed for the reliable switching of motors and electrical loads. Part of the SIRIUS 3RT2 series, this compact, Size S0 contactor is engineered for use with highly efficient IE2, IE3, and IE4 motors, making it a crucial component in modern industrial control and automation systems.

It features a robust 24V DC operating coil and is rated for an operational current of 9 A at $400\text{V}$ (AC-3e/AC-3), handling up to 4 kW of power. Its built-in 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts provide essential feedback and interlocking capabilities. Connection is fast and reliable with modern spring-loaded terminals.

Key Features / Function

• Model: 3RT2023-2BB40 (SIRIUS 3RT2 Series)
• Contactor Type: 3-pole Power Contactor for Motor Switching
• Operating Current (Ie​): 9 A (at $400\text{V}$, AC-3e/AC-3)
• Rated Power: 4 kW (at $400\text{V}$)
• Control Voltage: 24 V DC (Direct Current)
• Auxiliary Contacts: Integrated 1 NO + 1 NC
• Terminal Type: Spring-loaded terminal connections for fast, vibration-proof wiring.
• Size: S0 (Standard size for compact installation)
• Design: Suitable for all climates, robust, and safe from touch (IP20 rated).
• Durability: High mechanical service life of 10 million operating cycles.
• Mounting: DIN Rail or surface mountable.

Benefit

• Space-Saving Design: The compact Size S0 allows for efficient use of control cabinet space.
• High Efficiency Motor Compatibility: Optimized for switching IE2, IE3, and IE4 motors, ensuring compliance with modern energy standards.
• Fast, Reliable Wiring: Spring-loaded terminals reduce wiring time and maintenance, offering a durable, gas-tight connection even in high-vibration environments.
• Enhanced Control & Feedback: Integrated auxiliary contacts (1 NO + 1 NC) simplify circuit design for interlocking and signaling status.
• Global Standard Compliance: Complies with international standards like IEC 60947-4-1.
• Long Mechanical Life: Ensures reliable, long-term operation, minimizing downtime and replacement costs.

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