Siemens 3RT1056-2AR36 Power Contactor 185A, 90kW, 440-480V AC/DC Original Brand New

Overview 

The Siemens 3RT1056-2AR36 is a high-performance power contactor designed for reliable switching of motors and other electrical loads in industrial environments. Engineered for efficiency and durability, this 3-pole contactor is rated for AC-3e/AC-3 operation up to 185 A and 90 kW at 400 V. Its conventional drive and robust design ensure dependable performance, while the versatile 440-480 V AC/DC control voltage allows for broad application flexibility.

Features & Specification

• Product Number: 3RT1056-2AR36
• Contactor Type: Power Contactor
• Operating Current (AC-3e/AC-3): 185 A
• Operating Power (AC-3e/AC-3): 90 kW at 400 V
• Control Supply Voltage (Uc): 440-480 V AC (50-60 Hz) / DC
• Number of Poles: 3-pole
• Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
• Drive: Conventional
• Main Circuit Connection: Busbar
• Control and Auxiliary Circuit Connection: Spring-loaded terminals

Benefit

• High Performance: With a 185 A rating and 90 kW power capacity, this contactor is suitable for demanding applications, ensuring efficient motor control.
• Versatile Control: The 440-480 V AC/DC control voltage range offers flexibility and simplifies integration into various control systems.
• Reliable Operation: Siemens’ renowned quality and conventional drive technology provide a dependable solution for critical industrial processes.
• Easy Installation: Spring-loaded terminals on the control and auxiliary circuits allow for quick and secure wiring, reducing installation time and effort.
• Space-Saving Design: The compact design, in combination with busbar main connections, helps to optimize panel space.

Function

The Siemens 3RT1056-2AR36 functions as a critical component in motor control circuits, serving to:

• Switch the main power supply to motors and other loads.
• Provide a safe and efficient means of starting and stopping industrial machinery.
• Integrate with protection devices (like overload relays) to create a comprehensive motor starter solution.
• Enable remote or automated control of equipment through its coil and auxiliary contacts.

Application

This power contactor is ideal for a wide range of industrial applications, including:

• Controlling large motors in pumps, fans, compressors, and conveyors.
• Switching resistive and inductive loads in heating systems and power distribution.
• Integration into motor control centers (MCCs) and industrial control panels.
• Used in a variety of industries such as manufacturing, water treatment, HVAC, and material handling.

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