Siemens 3RT2036-1NB30-1AA0 Power Contactor, 51A, 22kW, 20-33V AC/DC, Size S2 Original Brand New

Overview

The Siemens 3RT2036-1NB30-1AA0 is a high-performance, 3-pole power contactor designed for efficient and reliable switching of three-phase loads, particularly in motor control applications. Part of the SIRIUS family, this S2 size contactor is built for robustness and long service life. Its compact design allows for upright mounting, saving valuable space in control panels.

Key Features & Specification

• Product Number: 3RT2036-1NB30-1AA0
• Contactor Type: Power Contactor, 3-pole
• Application: AC-3e/AC-3 (Motor Switching)
• Current Rating (AC-3e/AC-3): 51 A
• Power Rating: 22 kW at 400 V
• Coil Voltage: 20-33 V AC/DC (50/60 Hz)
• Coil Protection: Integrated varistor for surge suppression
• Auxiliary Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
• Connection Type: Screw terminals
• Size: S2
• Mounting: Upright mounting position

Benefit

• Reliable Performance: Engineered by Siemens, a global leader in industrial automation, ensuring consistent and dependable operation.
• Space-Saving Design: The compact S2 size and upright mounting capability optimize panel layout and reduce installation footprint.
• Versatile Coil: The wide-range 20-33V AC/DC coil voltage simplifies stock management and provides flexibility for various control circuits.
• Enhanced Protection: The integrated varistor effectively protects the coil from voltage spikes, prolonging its lifespan and ensuring system stability.
• Easy Installation: Clearly marked screw terminals and a straightforward design make wiring and installation quick and efficient.
• High Durability: Built to withstand demanding industrial environments, offering a long mechanical and electrical service life.

Function

• Motor Control: Safely and efficiently switches the power to electric motors in applications such as pumps, fans, conveyors, and compressors.
• Load Switching: Used for controlling a variety of resistive and inductive loads in industrial and commercial settings.
• System Protection: Integrates into control circuits to provide a means of remote and automatic power switching, often as part of a motor starter assembly.
• Signaling: The integrated 1 NO + 1 NC auxiliary contacts provide feedback on the contactor’s status to the control system (e.g., indicating whether the main contacts are open or closed).

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