Siemens SIRIUS 3RT2038-1AK64-3MA0 Power Contactor 80 A, 37 kW, 110/120 V AC, Size S2 Original Brand New

Overview: SIRIUS 3RT2038-1AK64-3MA0 Power Contactor

The Siemens SIRIUS 3RT2038-1AK64-3MA0 is a robust and reliable 3-pole power contactor designed for switching motors and other resistive loads up to 80 A (rated operational current Ie at AC-3, 400 V). This high-performance contactor, part of the proven SIRIUS 3RT2 series, is engineered for industrial applications requiring high switching capacity and long mechanical service life.

It is rated for an operational power of 37 kW at 400 V and features an economical control circuit voltage of 110 V AC at 50 Hz or 120 V AC at 60 Hz. The unit comes equipped with a pre-assembled, captive auxiliary switch block providing a versatile 2 NO + 2 NC contact configuration, all in a compact Size S2 enclosure with secure screw terminals for easy and reliable wiring.

Benefits & Features

• High Performance: Efficiently switches motors up to 37 kW, suitable for heavy-duty industrial environments.
• Built-in Safety & Feedback: Comes with a captive 2 NO + 2 NC auxiliary switch block, providing essential signaling and interlocking functionality without the need for additional modules.
• Global Compatibility: Features a dual-frequency coil (110 V AC, 50 Hz / 120 V AC, 60 Hz) for worldwide application flexibility.
• Reliable Connection: Robust screw terminals ensure a secure, high-contact-pressure connection for the main and auxiliary circuits.
• Space-Saving Design: The Size S2 form factor offers a compact footprint for control panel efficiency.
• SIRIUS Quality: Backed by Siemens’ SIRIUS line of industrial controls, known for reliability and long mechanical/electrical endurance.

Function & Application

The 3RT2038-1AK64-3MA0 contactor is primarily used as a switching element in main circuits for the control of three-phase squirrel-cage motors (AC-3/AC-3e) and for switching highly inductive or resistive loads (AC-1).

Applications Include:

• Starting and stopping standard motors.
• Controlling heating, lighting, and ventilation systems.
• Integration into complex motor starter combinations (reversing or star-delta circuits).
• Use in machinery, plant construction, and automation systems.

For more of our high-quality industrial automation products and electrical components, visit Turll today and explore our extensive Siemens SIRIUS catalog.