Overview: Reliable Motor Control with Siemens SIRIUS 3RT2035-1AR60
The Siemens 3RT2035-1AR60 power contactor is a high-performance switching device from the trusted SIRIUS 3RT2 series, expertly engineered for controlling motors and other electrical loads up to 18.5 kW / 400 V. Featuring a compact Size S2 design and robust construction, this 3-pole contactor ensures reliable and efficient operation in industrial applications. The coil supports a versatile dual frequency range of 400 V AC at 50 Hz or 400-440 V AC at 60 Hz. Equipped with screw terminals for secure and easy wiring, it is a perfect solution for Direct-On-Line (DOL) motor starting.
Key Features & Technical Specifications
- Manufacturer: Siemens
- Series: SIRIUS 3RT20
- Product Number (MPN): 3RT2035-1AR60
- Type: Power Contactor (Motor Contactor)
- Pole Configuration: 3-pole
- Operating Current (Ie): 41 A (at AC-3e/AC-3, 400V)
- Operating Power: 18.5 kW / 400 V (at AC-3)
- Control Voltage (Us): 400 V AC (50 Hz) / 400-440 V AC (60 Hz)
- Auxiliary Contacts: Integrated 1 NO (Normally Open) + 1 NC (Normally Closed)
- Terminal Type: Screw Terminal
- Contactor Size: S2
- Standard Compliance: AC-3e/AC-3
Benefit
- High Performance in a Compact Design: The Size S2 contactor provides high switching capacity for motors up to 18.5 kW while maintaining a space-saving footprint in your control panel.
- Globally Approved Reliability: Part of the SIRIUS modular system, this device is climate-resistant and approved for worldwide use (IEC, UL/CSA, etc.), ensuring compatibility and longevity.
- Simplified Wiring: The traditional and reliable screw terminal connections ensure strong mechanical integrity and electrical contact, making installation and maintenance straightforward.
- Ready for IE3/IE4 Motors: Optimized to reliably switch high-efficiency IE3/IE4 motors, future-proofing your industrial drive solutions.
Functions and Applications
The Siemens 3RT2035-1AR60 is designed primarily for switching AC motors and resistive loads. Typical applications include:
- Direct-On-Line (DOL) Starting: Starting 3-phase AC induction motors.
- Motor Control: Providing remote ON/OFF control for pumps, fans, compressors, and conveyors.
- Resistive Load Switching: Suitable for switching heating systems and lighting circuits (within AC-1 rating).
- Integration into Star-Delta Starters: Can be used as the main or delta contactor in star-delta (wye-delta) starting assemblies.
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