Overview
The Siemens 3RT2028-1AV04 SIRIUS Power Contactor is a high-performance, robust industrial control component designed for reliable motor and load switching. As part of the globally recognized SIRIUS modular system, this size S0 contactor delivers exceptional performance with a rated operational current of 38 A for AC-3e/AC-3 applications. Its compact design and a comprehensive set of features, including a 400 V AC coil and versatile 2 NO + 2 NC auxiliary contacts, make it an ideal choice for a wide range of automation and industrial applications.
Key Benefit
- Exceptional Reliability: Built with Siemens’ renowned quality, the 3RT2028-1AV04 ensures long-term operational stability and a high electrical service life, minimizing downtime.
- Versatile Auxiliary Contacts: The built-in 2 NO + 2 NC auxiliary contacts provide flexible signaling and interlocking options, simplifying circuit design and control panel integration.
- Easy and Secure Wiring: The durable screw terminals offer a secure, vibration-resistant connection, ensuring reliable power transmission even in demanding industrial environments.
- Modular and Expandable: As a core component of the SIRIUS family, this contactor seamlessly integrates with other Siemens products like overload relays and auxiliary switch blocks for a complete and scalable motor control solution.
- Removable Auxiliary Switch: This feature allows for easy maintenance, replacement, or modification of the auxiliary contact configuration without removing the main contactor.
Technical Functions & Features
- Product Type: Power Contactor
- Product Designation: Siemens 3RT2028-1AV04
- Rated Operational Current (Ie): 38 A (AC-3e/AC-3)
- Rated Power: 18.5 kW at 400 V AC
- Number of Poles: 3-pole
- Control Coil Voltage: 400 V AC, 50 Hz
- Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
- Terminal Type: Screw Terminal
- Size: S0 (Standardized)
- Special Features: Removable Auxiliary Switch
- Mounting: Standard rail or screw mounting
- Application: Ideal for switching motors, resistive loads, and other industrial applications.
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