PRODUCT DESCRIPTION
SIEMENS 3RT2028-2AF00 - Power Contactor
The SIEMENS SIRIUS 3RT2028-2AF00 is a 3-pole power contactor designed for switching three-phase asynchronous motors and resistive loads in industrial control applications. This electromechanical switching device integrates into motor control centers, HVAC systems, and general machinery, providing reliable load interruption and connection. It features an AC-operated coil and integrated auxiliary contacts for status feedback and interlocking within control circuits.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RT2
- COMPONENT TYPE: Power Contactor
- ELECTRICAL SPECS:
- RATED OPERATIONAL CURRENT (AC-3, 400V): 38A
- RATED OPERATIONAL POWER (AC-3, 400V): 18.5 kW
- COIL VOLTAGE: 110V AC
- NUMBER OF POLES: 3-pole main contacts
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- RATED INSULATION VOLTAGE: 690V
- RATED IMPULSE WITHSTAND VOLTAGE: 6 kV
- MECHANICAL/PHYSICAL:
- TERMINAL TYPE: Screw terminals
- FRAME SIZE: S2
- MECHANICAL ENDURANCE: 10,000,000 operating cycles
- INTERFACE/CONTROL:
- CONTROL TYPE: Electromechanical AC coil
- FEEDBACK: Via integrated auxiliary contacts
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (for terminals)
- MOUNTING STYLE: DIN rail (35mm) or screw mounting
- OPERATING TEMPERATURE RANGE: -25 to +60 °C
- COMPATIBILITY/APPLICATION:
- MOTOR CONTROL: Three-phase asynchronous motors
- LOAD SWITCHING: Resistive loads, heating elements, lighting circuits
- INTEGRATION: Compatible with SIRIUS modular system components for overload protection and control circuit expansion