Overview
The Siemens 3RT2023-1AC20 is a high-performance SIRIUS 3RT2 series power contactor designed for reliable switching of motors and other resistive loads. This robust 3-pole contactor is rated for AC-3e/AC-3 operation, handling currents up to 9 A and motor power up to 4 kW at 400 V. Its compact S0 size makes it suitable for space-constrained industrial panels. The device operates with a 24 V AC, 50/60 Hz control voltage, and features integrated 1 NO and 1 NC auxiliary contacts for versatile control and signaling applications. With reliable screw terminals, installation is straightforward and secure.
Key Features & Benefit
- High Performance: Rated for demanding AC-3e/AC-3 applications, ensuring long-term reliability for motor control and switching.
- Compact Design (Size S0): Optimized for space-saving installations in control cabinets and panels.
- Integrated Auxiliary Contacts: The built-in 1 NO and 1 NC auxiliary contacts eliminate the need for an additional contact block, simplifying wiring and reducing costs.
- Versatile Power Rating: Suitable for a wide range of applications with a 9 A current rating and 4 kW power capacity at 400 V.
- Global Standard Compliance: Meets international standards, including IEC 60947 and UL/CSA, ensuring compatibility and safety worldwide.
- Easy & Secure Connection: The screw terminals provide a simple and reliable connection for both power and control wiring.
- Durability: Built to withstand harsh industrial environments, offering a long electrical and mechanical lifespan.
Function & Application
The Siemens 3RT2023-1AC20 power contactor is a fundamental component in industrial automation and electrical systems. Its primary functions include:
- Motor Control: Ideal for switching 3-phase asynchronous motors in a wide variety of industrial machinery.
- Resistive Load Switching: Can be used to switch resistive loads such as heating elements and lighting circuits.
- Control Circuits: The auxiliary contacts can be integrated into control circuits for feedback, interlocking, and signaling.
- Main and Sub-Distribution Boards: Used in control panels and switchboards for reliable power switching.
Technical Specification
- Product Type: Power Contactor
- Model: 3RT2023-1AC20
- Product Series: SIRIUS 3RT2
- Operating Current (AC-3e/AC-3): 9 A
- Rated Power (AC-3e/AC-3): 4 kW at 400 V
- Number of Poles: 3-pole
- Coil Voltage: 24 V AC, 50/60 Hz
- Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
- Connection Type: Screw Terminal
- Size: S0
- Mounting: DIN rail or screw mounting
- Dimensions (WxHxD): Approx. 45 x 73 x 85 mm
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