Overview
The Siemens 3RT2037-3AP00 is a high-performance 3-pole power contactor from the globally recognized SIRIUS 3RT2 series. Designed for switching motors and electrical loads in industrial automation and control applications, this contactor offers a robust combination of high power density and reliable operation.
It is rated for a maximum operating current of 65 A (AC-3e/AC-3) and a power rating of 30 kW at 400 V. The compact Size S2 device is equipped with a standard AC control coil that operates at 230 V AC, 50 Hz.
A key feature of the 3RT2037-3AP00 is its dual terminal system: the main power circuit utilizes reliable screw terminals, while the control and auxiliary circuits feature modern spring-loaded terminals (often referred to as Push-in terminals). This combination provides secure, vibration-proof connections for control wiring while maintaining familiar screw connections for the main circuit. The unit also includes integrated auxiliary contacts (1 NO + 1 NC) for status indication and control circuit integration.
Benefits & Advantages
- Space-Saving Design (Size S2): Offers high switching capacity in a compact, modular form factor for efficient panel design.
- High Reliability: Part of the SIRIUS modular system, ensuring high contact reliability and long service life (typically 10 million mechanical operating cycles).
- Fast, Secure Wiring: Spring-loaded technology on the control and auxiliary circuit minimizes wiring time and ensures a vibration-proof, maintenance-free connection.
- Global Applicability: 230V AC coil is standard for many industrial control systems.
- Integrated Diagnostics: Built-in 1 NO + 1 NC auxiliary contacts simplify monitoring and control feedback circuits.
- RoHS Compliant and IE3/IE4 Ready for future-proof motor control solutions.
Typical Application
The Siemens 3RT2037-3AP00 Contactor is ideal for:
- Switching 3-phase AC motors up to 30 kW.
- Industrial machine control systems.
- Heating, ventilation, and air conditioning (HVAC) applications.
- Pump and fan control.
- Automated production lines and machinery.
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