Siemens 3RT2035-1NB30 SIRIUS S2 Power Contactor 41 A, 18.5 kW, AC/DC Coil, Integrated Varistor Original Brand New

Overview

The Siemens 3RT2035-1NB30 is a high-performance SIRIUS S2 power contactor designed for reliable and efficient switching of three-phase loads, particularly in motor control applications. This versatile device is rated for AC-3e/AC-3 operation at up to 41 A and 18.5 kW at 400 V, making it suitable for a wide range of industrial uses. Its compact size and robust design ensure long-lasting performance in challenging environments.

Key Features & Benefit

• Exceptional Performance: Rated for AC-3e/AC-3 operation, providing reliable switching for motors and other inductive loads.
• Wide Voltage Range: The 20-33 V AC/DC control voltage allows for flexible integration into various control systems.
• Integrated Varistor: Protects against coil overvoltage spikes, extending the lifespan of both the contactor and the control circuit. This eliminates the need for an external surge suppressor.
• Auxiliary Contacts: Includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, providing feedback and interlocking capabilities for complex control schemes.
• Easy Installation: Features secure screw terminals for quick and reliable wiring, simplifying installation and maintenance.
• Space-Saving Design: The compact S2 frame size helps to optimize panel space, allowing for higher density installations.
• Global Recognition: As part of the Siemens SIRIUS family, this contactor is a trusted component in industrial automation worldwide, ensuring compatibility and support.

Function

The Siemens 3RT2035-1NB30 serves as a crucial component in electrical control systems, primarily functioning to:

• Switch Motor Loads: Efficiently starts, stops, and reverses three-phase motors.
• Control Resistive and Inductive Loads: Can be used for switching heating elements, lighting systems, and other general-purpose electrical circuits.
• Interlock and Safety: The integrated auxiliary contacts allow for the creation of safety interlock circuits, ensuring that certain conditions are met before a motor can operate.
• Automation Integration: Works seamlessly with PLCs and other automation devices to provide precise and automated control of machinery.

Technical Specification

• Product Number: Siemens 3RT2035-1NB30
• Product Type: Power Contactor
• Series: SIRIUS
• Size: S2
• Rated Operational Current (AC-3e/AC-3): 41 A
• Rated Power (AC-3e/AC-3): 18.5 kW at 400 V
• Poles: 3
• Control Supply Voltage: 20-33 V AC/DC, 50/60 Hz
• Varistor: Integrated
• Auxiliary Contacts: 1 NO + 1 NC
• Connection Type: Screw Terminal

Application

• Industrial machinery and equipment
• HVAC systems
• Pump and fan control
• Conveyor systems
• Material handling
• Building automation

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