Siemens 3RT2036-1AK60 Power Contactor S2, 51A, 22kW, 110V/120V AC Coil, SIRIUS 3RT2 Screw Terminal Original Brand New

Overview

The Siemens 3RT2036-1AK60 is a high-performance, 3-pole Power Contactor from the renowned SIRIUS 3RT2 series. Specifically engineered for switching motors and electrical loads, this reliable device is part of the efficient SIRIUS modular system, ensuring fast, flexible, and space-saving construction in control cabinets. It is rated for 51 A current (AC-3e/AC-3) and a power output of 22 kW at 400 V, making it suitable for a wide range of industrial applications.

The compact Size S2 unit features a control supply voltage of 110 V AC at 50 Hz or 120 V AC at 60 Hz and comes standard with 1 Normally Open (NO) + 1 Normally Closed (NC) auxiliary contacts for signaling and interlocking. Its robust screw terminal connections ensure secure and reliable wiring.

Benefits & Features

• Optimized Performance: Classified as AC-3e/AC-3, making it ideal for the reliable and energy-efficient switching of IE2, IE3, and IE4 motors.
• Compact & Modular: Part of the SIRIUS modular system, designed for space-saving installation and easy integration with other components (e.g., overload relays, circuit breakers).
• High Reliability: Offers high contact reliability and prolonged mechanical service life (typically 10 million operating cycles).
• Global Compliance: Approved for worldwide use, adhering to major standards like IEC and UL/CSA.
• Easy Wiring: Features user-friendly screw terminals for a secure and straightforward electrical connection.
• Built-in Signaling: Integrated 1 NO + 1 NC auxiliary contacts simplify the circuit design and provide immediate status feedback.

Function

The Siemens 3RT2036-1AK60 functions as an electromagnetic switch, primarily used in industrial control systems to switch 3-phase electrical motors and other high-power loads. When the 110V/120V AC coil is energized, the magnetic field closes the three main power contacts, allowing current to flow to the motor. The integrated auxiliary contacts change state concurrently, providing a low-current signal path for control logic, interlocking, and status indication.

Application

• Switching three-phase motors (e.g., pumps, fans, compressors)
• Creating combination starters (in conjunction with overload relays)
• General power switching of resistive and slightly inductive loads (AC-1)
• Integration into control panels and motor control centers (MCCs)

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