Overview: High-Performance SIRIUS 3RT2 Power Contactor
The Siemens 3RT2027-2CL24-3MA0 is a high-performance, 3-pole power contactor from the modular SIRIUS 3RT2 family, engineered for reliable switching of motors and electrical loads. Rated for AC-3e/AC-3 utilization categories, it handles currents up to 32 A and motor power up to 15 kW at 400 V.
This model is designed for quick, vibration-proof wiring with its robust spring-loaded terminals and features a 230 V AC coil with an integrated plugged-in varistor for enhanced coil protection and surge suppression. As a compact Size S0 device, it is ideal for modern, space-saving control cabinet designs.
Key Technical Specification
- Product Number: 3RT2027-2CL24-3MA0
- Manufacturer: Siemens
- Product Series: SIRIUS 3RT2
- Contactor Type: Power Contactor (Motor Switching)
- Utilization Category: AC-3e / AC-3
- Rated Operational Current ( @ 400 V AC-3): 32 A
- Rated Operational Power ( @ 400 V): 15 kW
- Poles: 3-pole (Main Contacts)
- Control Supply Voltage (Coil): 230 V AC, 50/60 Hz
- Surge Protection: Integrated Plugged-in Varistor
- Auxiliary Contacts (Integrated): 2 Normally Open () + 2 Normally Closed () (Captive Auxiliary Switch for SUVA applications)
- Terminal Type: Spring-Loaded Terminal (Spring-Type)
- Size: S0
Application
The Siemens 3RT2027-2CL24-3MA0 contactor is essential for switching three-phase loads, particularly in:
- Motor starting and control (pumps, fans, compressors, conveyors)
- Heating and lighting circuits
- Machine and plant engineering
- Industrial automation and control panels
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