Siemens 3RT2036-1NE34 Power Contactor 51A, 22kW, Size S2, 48-80V AC/DC Coil, 2 NO +2 NC, Screw Terminal Original Brand New

Overview

The Siemens 3RT2036-1NE34 is a premium, 3-pole power contactor from the SIRIUS Generation 3RT2 line, designed for reliably switching and controlling three-phase AC motors and other industrial loads. This Size S2 contactor is rated for $51\text{ A}$ (AC-3e/AC-3) and up to $22\text{ kW}$ at $400\text{ V}$. It features a highly flexible, low-consumption 48-80 V AC/DC wide-range coil, making it suitable for global applications and varying power supplies.

Critically, the coil includes an integrated varistor for superior surge protection, extending its operational life. It comes equipped with substantial built-in control capabilities: $2\text{ NO }+2\text{ NC}$ auxiliary contacts. All connections are secured via reliable screw terminals, and the auxiliary switch is removable for enhanced maintenance flexibility.

Key Benefit

• Versatile Coil Voltage: The 48-80 V AC/DC wide-range coil simplifies inventory and allows for flexible integration into diverse control systems.
• Integrated Protection: Includes an integrated varistor to suppress voltage peaks and protect the control electronics from damaging surges.
• High Switching Capacity: Excellent performance with a $51\text{ A}$ (AC-3) current rating and $22\text{ kW}$ power handling for medium-to-large motor applications.
• Extensive Auxiliary Contacts: Comes standard with $2\text{ NO }+2\text{ NC}$ integrated auxiliary contacts, providing ample feedback and control points without requiring add-on blocks.
• Secure & Proven Wiring: Reliable screw terminal technology ensures a secure, high-contact force connection for both main and auxiliary circuits.

Application

The Siemens 3RT2036-1NE34 contactor is the ideal choice for:

• Controlling medium-sized pumps, fans, and conveyor systems.
• Use in motor starter combinations (DOL, Reversing, Star-Delta).
• Integration into automated machinery and HVAC systems where coil protection is critical.
• Industrial panels requiring a reliable, globally certified $51\text{ A}$ switching device.

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