Siemens 3RT2024-1CK64-3MA0 SIRIUS Power Contactor, 12A, 5.5kW, 110V AC, S0 Original Brand New

Overview: Siemens SIRIUS 3RT2024-1CK64-3MA0 Power Contactor

The Siemens 3RT2024-1CK64-3MA0 is a high-performance 3-pole power contactor from the SIRIUS 3RT2 family, designed for reliable switching of motors and other resistive loads. Classified for operational currents up to 12 A (AC-3e/AC-3) and motor power up to 5.5 kW at 400 V, this contactor is a crucial component in industrial automation and low-voltage control systems.

It features a control supply voltage of 110 V AC at 50 Hz / 120 V AC at 60 Hz and comes equipped with a plugged-in varistor for essential surge voltage protection, enhancing the lifespan and reliability of the control coil. The compact Size S0 design, along with secure screw terminals and a captive auxiliary switch configuration of 2 Normally Open (NO) + 2 Normally Closed (NC) contacts, makes it easy to integrate, wire, and maintain.

Benefit & Features

• Optimized Performance: Rated for reliable motor switching and general load control with 12 A and 5.5 kW capabilities.
• Integrated Surge Protection: The built-in plugged-in varistor protects the coil from damaging voltage spikes, ensuring maximum service life and reducing downtime.
• High Control Flexibility: Includes a high count of 2 NO + 2 NC captive auxiliary contacts for monitoring and interlocking in complex control circuits.
• Space-Saving Design: Compact Size S0 footprint allows for efficient panel design and installation.
• Robust & Secure Wiring: Reliable screw terminals provide a secure, high-contact force connection for the main and auxiliary circuits.
• Global Compatibility: Part of the modular SIRIUS system, offering worldwide approvals and consistent quality.

Function

The Siemens 3RT2024-1CK64-3MA0 functions as an electromechanical switch. When the 110 V AC / 120 V AC control voltage is applied to the coil, it generates an electromagnetic force to close the three main power contacts, thereby supplying power to the connected motor or load.

Simultaneously, the captive auxiliary switches (2 NO + 2 NC) change state, providing feedback to the control system (e.g., PLC or relays) for status indication, interlocking, or complex control logic. The integrated varistor safely dissipates transient overvoltages during coil de-energization.

For more industrial automation and control products, visit Turll today!