Siemens 3RT2036-1NF30 SIRIUS Power Contactor, 51A, 22kW, AC/DC 83-155V Coil, Size S2 Original Brand New

Product Overview

The Siemens 3RT2036-1NF30 is a high-performance, 3-pole SIRIUS power contactor engineered for switching motors and other resistive loads in industrial control systems. Part of the modular SIRIUS 3RT2 series, this contactor offers a compact design, exceptional contact reliability, and easy integration into load feeders. It features a wide-range 83-155 V AC/DC control voltage coil with an integrated varistor for surge suppression, enhancing system reliability and simplifying wiring.

Function & Application

The Siemens 3RT2036-1NF30 is a core component for robust motor control. Its primary function is the safe and reliable switching of three-phase motors up to 22 kW (400 V), corresponding to a rated operating current of 51 A (AC-3/AC-3e).

Key Function

• Motor Switching: Controls the on/off state of 3-phase AC motors (e.g., in pumps, fans, conveyors).
• Load Control: Suitable for switching non-motor loads (AC-1) up to 70 A (at 400V, 40°C).
• Surge Protection: The integrated varistor protects the control circuit from voltage spikes, prolonging the life of the coil and simplifying the panel design by eliminating the need for external suppressor diodes.
• Signal Feedback: The built-in 1 NO + 1 NC auxiliary contacts provide instantaneous status feedback to a PLC or control system.

Application

• Industrial machinery and automation systems
• Heating, Ventilation, and Air Conditioning (HVAC) systems
• Pumps and compressor control
• Conveyor systems and material handling
• Switching of lighting circuits and resistive loads

Benefits & Features

1. High Reliability: Part of the globally proven SIRIUS modular system, ensuring superior performance and contact stability.
2. Compact, Space-Saving Design: Size S2 form factor allows for efficient use of control cabinet space.
3. Flexible Control: The wide-range 83-155V AC/DC coil simplifies inventory and maintenance, as one coil version covers a broad range of common control voltages (e.g., 110V AC, 120V AC/DC).
4. Enhanced Protection: Integrated varistor provides built-in surge suppression, protecting the control circuit against transient overvoltages.
5. Easy Wiring: Secure screw terminals for both main and auxiliary circuits ensure reliable and robust connections.

Additional Features

• IE3/IE4 Ready: Optimized for use with high-efficiency motors.
• Global Compliance: Approved for worldwide use (IEC, UL/CSA certified).
• Climate-Resistant: Designed for reliable operation in various ambient conditions (operating temperature: −25∘C to +60∘C).

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