Overview
The Siemens SIRIUS 3RT2037-3AP60 is a high-performance, 3-pole power contactor designed for switching motors and other resistive loads up to 65 A. As part of the SIRIUS 3RT2 generation, this Size S2 contactor is engineered for superior reliability, long service life, and flexibility in industrial control applications. It is ideal for modern motor starter solutions, meeting the efficiency requirements of the new AC-3e/AC-3 operational category.
This specific model features robust screw terminals for the main power circuit (easy high-power connection) and time-saving spring-loaded terminals for the control and auxiliary circuits, ensuring fast, vibration-proof wiring.
Benefit
- High Reliability and Long Life: Engineered for exceptional contact reliability and a long mechanical life, minimizing downtime.
- Space-Saving Design: The narrow construction of the SIRIUS 3RT2 series (Size S2) allows for optimal use of space within control cabinets.
- Energy Efficient: Optimized for use with high-efficiency IE3 and IE4 motors (meeting AC-3e), leading to reduced power consumption.
- Dual-Terminal Flexibility: Combines robust screw terminals for high current main wiring and quick-connect spring-loaded terminals for control wiring, speeding up installation and ensuring secure connections.
- Versatile Application: Suitable for a wide range of motor and load switching applications, including industrial safety solutions (with appropriate accessories).
Function & Application
The 3RT2037-3AP60 power contactor serves as a core component in industrial control panels for switching electric motors and heating loads.
- Motor Control: Functions as the primary switch in Direct-On-Line (DOL) starters, reversing starters, and star-delta (wye-delta) circuits when combined with appropriate accessories.
- Load Switching: Used for reliable, remote switching of non-motor loads (AC-1) such as lighting, heating, and capacitor banks.
- Integrated Signaling: The built-in 1 NO + 1 NC auxiliary contacts provide essential feedback on the main contactor status for interlocking, indicator lights, and PLC control signals.
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