Description
Siemens 3RT2046-1AC20 IEC Motor Contactor
The Siemens 3RT2046-1AC20 is a heavy-duty IEC motor contactor from the SIRIUS 3RT series, engineered for demanding motor control and switching applications in commercial and industrial HVAC systems. Rated at 45 kW under AC3 (squirrel-cage motor) duty, this contactor delivers dependable performance for large motor loads including compressors, fans, pumps, and air handling units.
Key Features
- AC3 duty rating: 45 kW — suited for squirrel-cage motor starting and switching
- Coil voltage: 24V AC for safe, low-voltage control circuit integration
- Integrated auxiliary contacts: 1 Normally Open (1NO) + 1 Normally Closed (1NC)
- Part of the Siemens SIRIUS 3RT modular contactor platform
- Compact, space-saving design for panel and enclosure mounting
- Suitable for use in motor control centers (MCCs), starters, and control panels
- Robust construction for long service life in continuous-duty applications
Application
The 3RT2046-1AC20 is ideal for HVAC motor control applications where reliable switching of large loads is critical. Its 24V AC coil voltage makes it compatible with standard low-voltage control circuits, while the 1NO+1NC auxiliary contact configuration supports interlocking, status feedback, and safety circuit functions.
Product Specifications
- SKU: 3RT2046-1AC20
- Brand: Siemens
- Series: SIRIUS 3RT
- Duty Type: AC3
- Motor Rating: 45 kW
- Coil Voltage: 24V AC
- Auxiliary Contacts: 1NO + 1NC
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