Siemens SIRIUS 3RT2 Power Contactor 3RT2027-1CL24-3MA0, 32A, 15kW, 230V AC Coil, Size S0, Screw Terminal Original Brand New

Overview: Siemens 3RT2027-1CL24-3MA0 SIRIUS Power Contactor

The Siemens 3RT2027-1CL24-3MA0 is a high-performance 3-pole power contactor from the cutting-edge SIRIUS 3RT2 series, designed for reliably switching motors and industrial loads. Rated for a maximum current of 32 A (AC-3e/AC-3) and a power output of 15 kW at 400 V, this motor contactor is ideal for applications requiring robust and compact control components.

The unit features a 230 V AC, 50/60 Hz coil for control circuit operation and comes equipped with a pre-installed plugged-in varistor for superior surge suppression, ensuring increased service life and system reliability. Its compact Size S0 design and user-friendly screw terminals make installation and wiring straightforward within any industrial control panel or motor starter assembly.

Benefit

• Optimized Reliability: Built-in varistor offers integrated surge protection for the coil, enhancing the contactor’s lifespan and reducing system downtime.
• High Performance in a Compact Design: Achieves 15 kW switching capacity in a small Size S0 footprint, saving valuable panel space.
• Integrated Monitoring: Features a captive 2 NO + 2 NC auxiliary switch block, providing essential feedback for control and monitoring circuits without requiring additional space or accessories.
• Global Standard: Part of the modular SIRIUS system, approved for worldwide use (IEC, UL/CSA, CCC) and is IE3/IE4-ready for energy-efficient motor applications.
• Easy Installation: Robust screw terminals for secure, long-lasting, and reliable wiring connections.

Function

The 3RT2027-1CL24-3MA0 Power Contactor functions as an electrically operated switch, primarily used to safely and frequently switch the main current to industrial equipment, most commonly AC motors.

1. Motor Switching: The 3-pole main contacts are designed to handle the high-inrush current (AC-3e/AC-3) of motor starting and continuous running.
2. Control Integration: The 230V AC control coil is energized by a signal from a PLC, push-button, or other control device, causing the main and auxiliary contacts to switch state.
3. Status Feedback: The 2 NO + 2 NC auxiliary contacts provide immediate, captive status signaling to the control system for interlocking, sequencing, and monitoring purposes.
4. Surge Protection: The integrated varistor dampens voltage peaks across the control coil, preventing damage to the coil and associated control electronics.

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