Overview
The Siemens 3RT2037-3SP30 is a high-performance SIRIUS series power contactor designed for reliable switching of motors and other industrial loads. As a key component in a robust electrical control system, this size S2 contactor is engineered for demanding applications. It features a versatile 175-280 V AC/DC control voltage, making it suitable for a wide range of power systems.
The integrated varistor provides surge protection, enhancing the longevity of both the contactor and connected equipment. With a rated current of 65 A and power rating of 30 kW at 400 V, it is an ideal choice for a variety of industrial motor control applications.
Key Benefit
- High Performance and Reliability: Part of the trusted Siemens SIRIUS family, ensuring consistent and dependable operation in industrial environments.
- Versatile Control Voltage: The wide 175-280 V AC/DC control voltage range simplifies integration into various control schemes and international installations.
- Enhanced Protection: An integrated varistor protects the coil against voltage spikes, extending the lifespan of the contactor.
- Flexible and Secure Connections: The combination of screw terminals for the main circuit and spring-loaded terminals for the control and auxiliary circuits offers both robust power connections and quick, vibration-proof wiring for control signals.
- F-PLC-IN Ready: Designed for seamless integration with failsafe PLC systems, enhancing safety and control in automated processes.
Function
- Motor Control: Serves as a primary component for switching and controlling three-phase motors up to 30 kW.
- Load Switching: Efficiently switches high-current resistive and inductive loads (AC-3e/AC-3).
- Safety Integration: The F-PLC-IN feature allows for direct connection to failsafe PLCs for emergency stop and safety-related functions.
- Auxiliary Signaling: The integrated 1 NC (Normally Closed) auxiliary contact provides feedback on the contactor’s status for interlocking or signaling purposes.
Technical Specification
- Product Type: Power Contactor
- Product Number: 3RT2037-3SP30
- Series: SIRIUS 3RT2
- Size: S2
- Rated Current (AC-3e/AC-3): 65 A
- Rated Power (AC-3e/AC-3): 30 kW @ 400 V
- Control Voltage: 175-280 V AC/DC, 50/60 Hz
- Auxiliary Contacts: 1 NC
- Main Circuit Connection: Screw Terminals
- Control/Auxiliary Circuit Connection: Spring-Loaded Terminals
- Special Features: Integrated Varistor, F-PLC-IN
- Number of Poles: 3-pole
Application
- Industrial Motor Control Systems
- HVAC Systems
- Pump Control
- Conveyor Systems
- Automated Machinery
- General Industrial Load Switching
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