Title: Siemens SIRIUS 3RT1023-1B Power Contactor - 3-Pole, AC-3, 12A, 4kW, 230V AC Coil

Product Overview:
The Siemens SIRIUS 3RT1023-1B is a high-performance, 3-pole power contactor designed for reliable switching of motors and resistive loads in industrial and commercial applications. As part of the globally recognized SIRIUS modular system, this contactor offers exceptional operational reliability, a compact footprint (Size S0), and a long service life, making it an ideal choice for demanding control tasks. Engineered for efficiency and ease of integration, the 3RT1023-1B features a 230V AC control coil and is rated for AC-3 duty at 12 Amperes, capable of handling motor loads up to 4 kW at 400V. Its robust design ensures stable performance even under frequent switching operations, contributing to enhanced system uptime and reduced maintenance. This contactor is a cornerstone component for motor control centers, industrial machinery, and automation systems requiring dependable power switching.

Key Features & Benefits:

 3-Pole Main Contacts: Designed for switching three-phase AC loads, ensuring robust power control for motors and other inductive loads.
 AC-3 Duty Rated: Optimized for motor switching applications, including starting and stopping squirrel-cage motors under normal operating conditions.
 High Current and Power Capacity: Rated for 12 Amperes (AC-3 at 400V) and capable of switching motors up to 4 kW (at 400V), providing ample capacity for various industrial loads.
 230V AC Control Coil: Standard control voltage for widespread compatibility with existing control circuits and power supplies.
 Compact Size S0: Space-saving design allows for efficient panel layout and integration into crowded electrical enclosures.
 Robust and Durable Construction: Engineered for high mechanical and electrical endurance, ensuring a long operational lifespan and reduced need for replacements.
 Screw Terminals: Provides secure and reliable electrical connections, simplifying wiring and installation processes.
 Modular Design: Easily expandable with a wide range of auxiliary contact blocks, surge suppressors, and other accessories from the SIRIUS modular system.
 High Switching Frequency: Capable of handling frequent switching operations without compromising performance or lifespan.
 International Standards Compliance: Meets global standards such such as IEC 60947, EN 60947, VDE 0660, UL, and CSA, ensuring broad applicability and safety.
 Energy Efficient: Features a low power consumption coil, contributing to energy savings in continuous operation.

Applications:

 Motor control for pumps, fans, compressors, and conveyor systems.
 Switching of resistive loads such as heating elements and lighting circuits.
 Integration into industrial automation and control panels.
 Machine building and equipment manufacturing.
 HVAC systems and building management.
 General industrial power switching applications requiring high reliability.
 Used in conjunction with overload relays for comprehensive motor protection.

Technical Specifications:

 Part Number: 3RT1023-1B
 Alternative Part Number: 3RT10231B
 Number of Poles: 3
 Rated Operational Current (Ie) AC-3: 12 A (at 400 V)
 Rated Operational Power (Pe) AC-3: 4 kW (at 400 V)
 Rated Control Supply Voltage (Us): 230 V AC, 50/60 Hz
 Size: S0
 Auxiliary Contacts: 0 NO + 0 NC (main contacts only; designed for add-on auxiliary blocks)
 Mounting Type: DIN rail or screw mounting
 Connection Type: Screw terminals
 Operating Temperature Range: -25 to +60 °C
 Electrical Endurance: Approximately 10 million switching operations
 Mechanical Endurance: Approximately 30 million switching operations
 Degree of Protection: IP20 (terminals)
 Standards: IEC 60947, EN 60947, VDE 0660, UL, CSA
 Weight: 0.35 kg