Siemens 3RT2028-2AG24 Power Contactor 38A, 18.5kW, 110V AC, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT2028-2AG24 is a high-performance SIRIUS series power contactor designed for reliable switching of motors and electrical loads up to 18.5 kW. With a robust 3-pole design and an impressive current rating of 38 A, this size S0 contactor is engineered for demanding industrial applications. The 110 V AC control voltage ensures compatibility with a wide range of power systems, while the innovative spring-loaded terminal connections provide fast, secure, and vibration-resistant wiring. This model also features a generous configuration of 2 NO + 2 NC auxiliary contacts, which are conveniently removable, offering exceptional flexibility for control and signaling circuits.

Key Features & Function

• High-Rated Performance: Capable of handling a continuous current of 38 A and motor loads up to 18.5 kW at 400 V, making it suitable for a variety of heavy-duty applications.
• 3-Pole Switching: Provides reliable on/off control for three-phase AC motors and other inductive loads.
• Versatile Auxiliary Contacts: Includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, crucial for interlocking, signaling, and feedback circuits.
• Removable Auxiliary Switch: The auxiliary contact block is easily removable, simplifying maintenance, replacement, and customization.
• Spring-Loaded Terminal Technology: This advanced connection method ensures a permanent, gas-tight, and vibration-proof electrical connection without the need for periodic re-tightening, significantly reducing maintenance time and costs.
• Compact Size (S0): Its space-saving design allows for efficient use of panel space, making it ideal for compact control cabinets.
• Compliance & Standards: Adheres to international standards such as AC-3e/AC-3, guaranteeing its suitability and performance for switching squirrel-cage motors.

Benefit

• Increased Reliability: The spring-loaded terminals provide a maintenance-free and highly reliable connection, minimizing the risk of downtime due to loose wires.
• Faster Installation: Dramatically reduces wiring time compared to screw terminals, leading to quicker machine commissioning and reduced labor costs.
• Enhanced Safety: The secure connections and high-quality construction contribute to a safer electrical system.
• Flexible Control: The abundant and removable auxiliary contacts allow for complex control schemes and easy adaptation to various application requirements.
• Long-Lasting Performance: Built with high-quality materials and engineering, the Siemens 3RT2028-2AG24 offers a long service life, even in harsh industrial environments.

Technical Specification

• Product Number: Siemens 3RT2028-2AG24
• Type: Power Contactor
• Current Rating: 38 A (AC-3e/AC-3)
• Power Rating: 18.5 kW at 400 V
• Poles: 3
• Control Voltage: 110 V AC, 50/60 Hz
• Auxiliary Contacts: 2 NO + 2 NC
• Terminal Type: Spring-Loaded Terminal
• Size: S0
• Special Features: Removable Auxiliary Switch
• Brand: Siemens SIRIUS

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