Siemens 3RT1075-2AD36 SIRIUS Power Contactor, 400A, 200 kW, 42-48 V UC, Spring-Loaded Original Brand New

Product Overview

The Siemens 3RT1075-2AD36 is a high-performance SIRIUS power contactor designed for demanding switching applications, primarily for motors up to 200 kW at 400 V. As part of the globally recognized SIRIUS 3RT family, this device is engineered for maximum reliability and longevity.

Featuring a robust 3-pole design, an operating current of 400 A (AC-3e/AC-3), and a highly versatile 42-48 V UC (AC/DC) control voltage, it offers seamless integration into various industrial automation and control systems. The combination of busbar main circuit connections and spring-loaded terminals for the control and auxiliary circuits ensures fast, secure, and vibration-proof wiring.

Key Benefits and Advantages

• Exceptional Power Handling: Rated for 400 A and 200 kW, ideal for switching high-power industrial motors and resistive loads.
• Global Standard: Authentic Siemens SIRIUS quality ensures compliance with international standards (AC-3e/AC-3).
• Flexible Control: The 42-48 V UC coil supports both AC and DC control voltages, simplifying inventory and system design.
• Fast, Reliable Wiring: Spring-loaded terminals on the control and auxiliary circuits provide tool-free, permanent, and vibration-resistant connections, drastically reducing installation time and maintenance costs.
• Robust Main Circuit Connection: Busbar connections on the main circuit offer a high-current, secure interface for heavy industrial environments.
• Integrated Diagnostics: Comes with built-in 2 NO + 2 NC auxiliary contacts for monitoring and interlocking functions, enhancing system safety and control.

Function and Application

The Siemens 3RT1075-2AD36 contactor is primarily used for the switching of:

• Electric Motors: Suitable for standard and heavy-duty motor applications (up to 200 kW) in various machinery, pumps, fans, and compressors.
• Resistive Loads: Effective for switching resistive loads in heating or lighting systems.
• Industrial Control Systems: Integrates into main distribution boards, motor control centers (MCCs), and other complex industrial automation setups.

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