Siemens SIRIUS 3RT2028-1AU00 Power Contactor, 3-Pole, 38A, 18.5kW/400V, 240V AC Coil, Size S0, Screw Terminal Original Brand New

Overview: Siemens SIRIUS 3RT2028-1AU00 Power Contactor

The Siemens 3RT2028-1AU00 is a high-performance, 3-pole power contactor from the trusted SIRIUS 3RT2 family, designed for reliable switching of motors and other industrial loads. Rated for an operational current of 38 A (AC-3e/AC-3) and a motor power of 18.5 kW at 400 V, this robust component ensures efficient power control in industrial automation and control systems. Its compact Size S0 design saves valuable space in control cabinets.

Key Specifications & Function

• Product Type: Power Contactor (SIRIUS 3RT2 Series)
• Main Application: Switching 3-phase AC motors and resistive loads.
• Operating Current (AC-3e/AC-3): 38 A at 400 V.
• Motor Power Rating: 18.5 kW at 400 V.
• Poles: 3-pole main circuit.
• Coil Voltage (Control Voltage): 240 V AC, 50 Hz.
• Auxiliary Contacts: Integrated 1 Normally Open (NO) + 1 Normally Closed (NC) auxiliary contacts for feedback and interlocking circuits.
• Connection Type: Reliable Screw Terminals for secure wiring.
• Contactor Size: S0 (Standard Industry Size).
• Max Operational Voltage (Main Circuit): 690 V.

Benefit & Features:

1. High Switching Capacity: Efficiently controls high-power loads up to 18.5 kW, making it suitable for demanding motor applications.
2. Reliable Operation: Part of the Siemens SIRIUS range, known for exceptional reliability, long mechanical service life (typically 10 million switching cycles), and compliance with international standards (IEC, UL/CSA).
3. Space-Saving Design: The compact S0 frame size optimizes cabinet space utilization.
4. Integrated Auxiliary Contacts: The built-in 1 NO and 1 NC contacts simplify wiring for control and signaling circuits.
5. Secure Connections: Screw terminals offer robust and familiar connections for industrial wiring.
6. RoHS Compliant: Manufactured in compliance with substance restrictions, supporting sustainable practices.

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