Siemens 3RT2037-3AF00 Power Contactor, SIRIUS S2, 65A, 30kW, 110V AC Coil Original Brand New

Overview: Siemens SIRIUS 3RT2037-3AF00 Power Contactor

The Siemens 3RT2037-3AF00 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT2 family of industrial control components. Designed for switching motors and other resistive loads in demanding industrial environments, this robust size S2 contactor is rated for an operational current of 65 A at 30 kW / 400 V (AC-3e/AC-3).

It features a reliable 110 V AC, 50 Hz control coil and is equipped with one integrated normally open (1 NO) and one normally closed (1 NC) auxiliary contact for easy integration into control circuits. The main circuit uses secure screw terminals, while the control and auxiliary circuits utilize time-saving, vibration-proof spring-loaded terminals. This combination ensures flexibility and high contact reliability in your electrical installations.

Benefits & Advantages

• Compact & High Performance: Achieves 30 kW switching capacity in a space-saving S2 design, making it ideal for high-density control panels.
• IE3/IE4 Ready: Optimized for use with high-efficiency motors, supporting future-proof industrial applications.
• Dual-Terminal Technology: Combines the robustness of screw terminals for the main power circuit with the fast, maintenance-free, and vibration-proof connection of spring-loaded terminals for control wiring.
• High Reliability: Part of the modular SIRIUS system, ensuring coordinated products and high contact reliability.
• Global Approval: Climate-resistant and approved for worldwide use (IEC, UL/CSA), simplifying global equipment deployment.
• Reduced Complexity: Integrated 1 NO + 1 NC auxiliary contacts simplify control circuit design and reduce the need for external components.

Application

The Siemens 3RT2037-3AF00 Power Contactor is perfectly suited for use in:

• Motor starting and switching (e.g., pumps, fans, conveyors)
• Heating and lighting circuits
• Machine control panels
• Any industrial application requiring reliable, high-current switching of a 3-phase load.

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