Siemens SIRIUS 3RT2028-2AP00 Power Contactor, 38A, 18.5 kW, 230V AC Coil, Size S0, Spring-Loaded Terminal Original Brand New

Overview: Siemens SIRIUS 3RT2028-2AP00 Power Contactor

The Siemens 3RT2028-2AP00 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT20 series, designed for the efficient switching of motors and other resistive loads. Classified for demanding AC-3e/AC-3 applications, this compact Size S0 contactor is rated for $38\text{ A}$ and a maximum motor power of $18.5\text{ kW}$ at $400\text{ V}$.

It features a reliable $230\text{ V AC}$, $50\text{ Hz}$ operating coil and is equipped with spring-loaded terminals for fast, vibration-proof, and maintenance-free wiring. An integrated $1\text{ NO}+1\text{ NC}$ auxiliary contact configuration provides standard control and signaling functions right out of the box. As a member of the SIRIUS family, it is designed for maximum consistency and seamless integration with other Siemens components.

Key Benefit

• Fast & Easy Wiring: The innovative spring-loaded terminals significantly reduce wiring time and ensure a highly reliable connection, especially in environments subject to vibration.
• Space-Saving Design: The compact Size S0 footprint allows for high-density installation in control cabinets, maximizing panel space.
• Global Standard Compliance: Tested and certified according to worldwide standards (IEC, UL, CSA), making it suitable for international applications.
• High Reliability: Offers a mechanical service life of up to 10 million operating cycles, ensuring long-term, dependable operation.
• Integrated Functionality: Comes with built-in $1\text{ NO}+1\text{ NC}$ auxiliary contacts, reducing the need for additional components and simplifying motor control circuits.

Function & Application

The 3RT2028-2AP00 contactor is primarily used for switching:

1. 3-Phase AC Motors: Ideal for starting and stopping motors up to $18.5\text{ kW}$.
2. Resistive Loads: Suitable for switching heating elements, lighting systems, and other non-motor loads (up to $50\text{ A}$ in AC-1 operation).
3. Industrial Machinery: Used in motor feeders for pumps, fans, compressors, conveyors, and various machine tools.
4. Integration with Protection Devices: Seamlessly combines with SIRIUS 3RV2 motor starter protectors and 3RU2 thermal overload relays to create a complete, integrated motor feeder.

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