Siemens 3RT1056-6NP38-0PA5 Power Contactor, 185 A, 90 kW, AC/DC, Solid-State Compatible Original Brand New

Overview

The Siemens 3RT1056-6NP38-0PA5 is a high-performance power contactor designed for reliable and efficient motor control applications. This versatile 3-pole contactor is rated for AC-3e/AC-3 operation at 185 A and 90 kW, making it suitable for a wide range of industrial tasks. Its unique AC/DC control voltage (Uc​) of 200-277 V combined with a 24 V DC PLC input offers exceptional flexibility and integration into modern automation systems.

Key Features & Benefit

• High Current & Power Rating: With a rating of 185 A and 90 kW at 400 V, this contactor handles demanding loads with ease, ensuring robust and reliable operation.
• Flexible Control Voltage: The wide AC (50-60 Hz) / DC control voltage range of 200-277 V allows for seamless integration into diverse power systems, reducing complexity and inventory.
• PLC Integration: The dedicated 24 V DC PLC input makes it a perfect choice for use with programmable logic controllers, simplifying wiring and control logic.
• Solid-State Compatibility: Designed to be compatible with solid-state drives, this contactor ensures smooth and reliable operation in conjunction with electronic motor control systems.
• Robust Auxiliary Contacts: Equipped with 2 NO (normally open) and 2 NC (normally closed) auxiliary contacts, it provides additional signaling and interlocking options for complex control circuits.
• Efficient Connections: The main circuit features busbar connections for secure and high-current power distribution, while the control and auxiliary circuits use reliable screw terminals for easy and secure wiring.

Function

The Siemens 3RT1056-6NP38-0PA5 power contactor is a crucial component in industrial automation, acting as an electrically operated switch. Its primary function is to safely and efficiently switch high-power loads, such as electric motors, resistive heaters, and lighting systems, on and off.

The electronic drive system ensures a long mechanical and electrical service life, while the solid-state compatibility guarantees seamless integration with variable frequency drives and other modern control technologies. The included auxiliary contacts allow for the creation of feedback loops and complex control schematics, providing essential status information to a connected PLC or control system.

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