Overview
The Siemens SIRIUS 3RT2045-1CL24-3MA0 is a high-performance power contactor designed for reliable switching of motors and other electrical loads. This 3-pole contactor is rated for AC-3e/AC-3 operation, handling up to 80 A and 37 kW at 400 V. Its compact S3 size makes it suitable for a wide range of industrial applications.
Key Features
- High Power Rating: Capable of handling up to 80 A and 37 kW at 400 V.
- Versatile AC-3e/AC-3 Operation: Ideal for switching motors and general inductive loads.
- Integrated Varistor: Protects the contactor and control circuit from voltage surges.
- Dual Auxiliary Contacts: Includes 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contacts for flexible control and signaling.
- Screw Terminals: Ensures secure and reliable electrical connections.
- S3 Size: Compact design for space-saving installation.
- Captive Auxiliary Switch: Prevents loss of components during installation and maintenance.
- 230 V AC Coil: Standard control voltage for easy integration into existing systems.
Benefit
- Increased Reliability: The integrated varistor protects against damaging voltage spikes, extending the lifespan of the contactor.
- Enhanced Safety: The captive auxiliary switch ensures proper assembly and reliable operation.
- Easy Installation: Screw terminals and a compact design simplify the installation process.
- Flexible Control: The 2 NO + 2 NC auxiliary contacts allow for complex control schemes and status monitoring.
- Cost-Effective Solution: A durable and reliable component that reduces downtime and maintenance costs.
Function
The Siemens 3RT2045-1CL24-3MA0 functions as a primary switching device in motor control circuits, automation systems, and other industrial applications. It is used to:
- Switch AC motors on and off.
- Control heating elements and lighting systems.
- Isolate electrical circuits.
- Provide remote control of power circuits.
Technical Specification
- Product Number: 3RT2045-1CL24-3MA0
- Product Type: Power Contactor
- Series: Siemens SIRIUS 3RT2
- Rated Current (AC-3e/AC-3): 80 A
- Rated Power (AC-3e/AC-3): 37 kW at 400 V
- Number of Poles: 3
- Control Voltage: 230 V AC, 50/60 Hz
- Auxiliary Contacts: 2 NO + 2 NC
- Surge Suppression: Plugged-in varistor
- Terminals: Screw terminal
- Size: S3
- Auxiliary Switch: Captive
Application
- Motor control panels
- Industrial machinery
- Building automation
- HVAC systems
- Pumps and fans
- Conveyor systems
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