Siemens 3RT2028-1AP00 SIRIUS 3RT2 Power Contactor Size S0, 38A, 18.5kW, 230V AC Coil Original Brand New

Overview

The Siemens 3RT2028-1AP00 Power Contactor from the SIRIUS 3RT2 series is a highly reliable and compact 3-pole switching device, specifically designed for controlling electric motors and non-inductive loads. This robust contactor is an integral part of the modular SIRIUS system, offering excellent switching performance, high contact reliability, and a wide range of accessories for flexible integration into load feeders.

Key Technical Specification

• Product ID: 3RT2028-1AP00
• Product Series: SIRIUS 3RT2
• Contactor Type: Power Contactor for Motor Switching (AC-3e/AC-3)
• Number of Poles: 3-pole (3 NO main contacts)
• Rated Operational Current (Ie​) (AC-3/AC-3e at 400 V): $38\text{ A}$
• Rated Operational Power (AC-3/AC-3e at 400 V): $18.5\text{ kW}$
• Control Supply Voltage (Us​): $230\text{ V AC},50\text{ Hz}$
• Auxiliary Contacts: $1\text{ NO}+1\text{ NC}$ (Integrated)
• Main Circuit Connection: Screw Terminal
• Contactor Size: $\text{S}0$
• Standards Compliance: IEC and UL/CSA approved (Worldwide use)
• Efficiency: IE3/IE4-ready

Benefit

1. Compact Power: Achieve $18.5\text{ kW}$ switching capability in the space-saving size $\text{S}0$ design, allowing for denser control panel layouts.
2. Global Reliability: Part of the proven SIRIUS modular system, ensuring high operational reliability, long mechanical and electrical service life ($\text{10,000,000}$ mechanical cycles typically), and compliance with international standards (IEC, UL/CSA).
3. Simplified Wiring: Equipped with robust screw terminals for secure and straightforward main and auxiliary circuit connections. Integrated auxiliary contacts ($1\text{ NO}+1\text{ NC}$) simplify wiring and reduce the need for external components.
4. Energy Efficiency Ready: This contactor is ready for use with high-efficiency IE3/IE4 motors, supporting modern industrial energy standards.
5. Seamless Integration: Fully compatible with a comprehensive range of SIRIUS accessories, including overload relays (e.g., 3RU2), auxiliary switch blocks, and function modules, for building complete, high-performance load feeders.

Function & Application

The 3RT28-1AP00 functions as the primary switching element in motor control circuits. It is typically used for:

• 20Switching 3-phase AC motors (up to $18.5\text{ kW}$ at $400\text{ V}$).
• Simple control circuits, using the $230\text{ V AC}$ coil voltage.
• Controlling non-inductive or slightly inductive loads.
• Integration into automated industrial processes and machine control.

The integrated $1\text{ NO}+1\text{ NC}$ auxiliary contacts provide feedback or interlocking functionality within the control circuit.

For more information on the SIRIUS 3RT2 family and other industrial automation products, visit turll.