Overview
The Siemens 3RT2024-1DB44-3MA0 is a high-performance power contactor designed for reliable switching of electrical loads in industrial applications. This 3-pole contactor is rated for AC-3e/AC-3 operation, handling up to 12 A and 5.5 kW at 400 V. Its compact S0 size makes it ideal for space-constrained installations.
Featuring a 24 V DC control voltage with a plugged-in varistor for surge suppression, it ensures stable and safe operation. The built-in 2 NO + 2 NC auxiliary contacts and secure screw terminals provide flexible and reliable connections.
Key Features & Benefit
- High Performance: Rated for 12 A and 5.5 kW, suitable for a wide range of motor and resistive loads.
- Reliable Operation: The 24 V DC control voltage with a plugged-in varistor provides excellent protection against voltage spikes, extending the life of the contactor and connected equipment.
- Versatile Auxiliary Contacts: The integrated 2 NO + 2 NC auxiliary contacts offer enhanced functionality for control and signaling circuits.
- Secure & Easy Connection: Screw terminals ensure a strong, reliable electrical connection, minimizing maintenance requirements.
- Space-Saving Design: The compact S0 size allows for installation in tight panels and enclosures.
- Captive Auxiliary Switch: Ensures the auxiliary switch remains with the main unit, simplifying assembly and maintenance.
Technical Specification
- Product Type: Power Contactor
- Product Number: 3RT2024-1DB44-3MA0
- Series: Siemens SIRIUS
- Operational Rating (AC-3e/AC-3): 12 A, 5.5 kW @ 400 V
- Number of Poles: 3-pole
- Control Voltage: 24 V DC
- Surge Suppression: Plugged-in varistor
- Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)
- Terminals: Screw Terminals
- Size: S0
- Additional Features: Captive auxiliary switch
Application
- Motor control and starting
- Switching resistive and inductive loads
- Industrial automation and control systems
- Pump and fan control
- HVAC systems
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