ОПИСАНИЕ ПРОДУКТА
SIEMENS 3RT2028-1BF40 - Power Contactor
This SIEMENS SIRIUS 3RT2028-1BF40 is a 3-pole power contactor designed for switching three-phase AC motors and resistive loads up to 11 kW at 400V AC-3. It features a 24V AC operating coil and integrated 1 NO + 1 NC auxiliary contacts, providing robust control for industrial motor starter applications, HVAC systems, and general load switching within automation panels. The device utilizes screw terminals for both main and control circuits, ensuring secure and reliable electrical connections.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RT2
- COMPONENT TYPE: Power Contactor
- ELECTRICAL SPECS:
- RATED OPERATIONAL CURRENT (AC-3, 400V): 25A
- RATED OPERATIONAL POWER (AC-3, 400V): 11 kW
- RATED OPERATIONAL CURRENT (AC-1): 40A
- NUMBER OF POLES: 3-pole
- COIL VOLTAGE: 24V AC
- RATED INSULATION VOLTAGE: 690V
- RATED IMPULSE WITHSTAND VOLTAGE: 6 kV
- MECHANICAL/PHYSICAL:
- SIZE: S0 (SIRIUS Size 0)
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- TERMINAL TYPE (MAIN CIRCUIT): Screw terminals
- TERMINAL TYPE (CONTROL CIRCUIT): Screw terminals
- INTERFACE/CONTROL:
- CONTROL TYPE: Electromechanical coil
- FEEDBACK: Integrated auxiliary contacts for status indication
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (for terminals)
- COOLING METHOD: Natural convection
- MOUNTING STYLE: DIN rail (35mm) or screw mounting
- OPERATING TEMPERATURE: -25 to +60 degrees C
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Motor control centers, industrial machinery, HVAC systems, pump control, lighting circuits
- SPECIFIC MACHINE TYPES: Conveyor systems, machine tools, packaging machinery, fan control units