Siemens SIRIUS 3RT2037-3SB30 Power Contactor, 65A, 30 kW, AC/DC 21-33V Coil, Size S2, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT2037-3SB30 is a high-performance, 3-pole power contactor from the globally recognized SIRIUS 3RT20 series, designed for reliably switching motors and resistive loads up to 65 Amps (AC-3e/AC-3). Engineered for demanding industrial applications, this Size S2 contactor provides an optimal combination of compact design, high power (30 kW at 400 V), and advanced control features.

A key feature is its versatile 21-33V AC/DC wide-range control voltage with an integrated varistor for superior surge suppression, ensuring coil protection and reliable operation. This model is also designated as F-PLC-IN, making it ideal for direct and safe control from a Fail-Safe PLC or standard PLC output.

Key Benefit

• Robust Motor Switching: Rated for 65A (AC-3e/AC-3) and 30 kW at 400 V, ensuring reliable operation for medium-power motor applications.
• PLC-Ready Control: F-PLC-IN capability provides direct, safe, and efficient interfacing with fail-safe PLC systems, reducing wiring complexity.
• Integrated Surge Protection: Comes with a factory-integrated varistor to protect the control circuit from voltage spikes, enhancing longevity and reliability.
• Dual-Terminal Convenience: Features screw terminals for the main power circuit for secure, high-current connections, and spring-loaded terminals for the control/auxiliary circuit (1 NC), offering fast, vibration-proof, and maintenance-free wiring.
• Compact & Modular: Part of the SIRIUS modular system (Size S2), allowing for easy integration and a standardized range of accessories.

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