PRODUCT DESCRIPTION
SIEMENS 3RT20351KB44 - Power Contactor
This device is a SIEMENS SIRIUS 3RT2 series power contactor, designed for switching three-phase AC loads in industrial control applications. It integrates into motor control centers, automation systems, and machinery requiring reliable switching of resistive, inductive, and capacitive loads. The contactor features a 24V AC/DC control coil and integrated auxiliary contacts for feedback and interlocking.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RT2
- COMPONENT TYPE: Power Contactor
- ELECTRICAL SPECS:
- RATED OPERATIONAL CURRENT (AC-3, 400V): 32 A
- RATED OPERATIONAL POWER (AC-3, 400V): 15 kW
- RATED OPERATIONAL VOLTAGE: Up to 690V AC
- CONTROL SUPPLY VOLTAGE: 24V AC/DC
- FREQUENCY: 50/60 Hz
- NUMBER OF MAIN POLES: 3 (Normally Open)
- INTEGRATED AUXILIARY CONTACTS: 1 NO + 1 NC
- MECHANICAL/PHYSICAL:
- FRAME SIZE: S2
- MAIN CIRCUIT TERMINALS: Screw terminals
- CONTROL CIRCUIT TERMINALS: Screw terminals
- MOUNTING: DIN rail or screw mounting
- INTERFACE/CONTROL:
- CONTROL TYPE: Electromechanical coil
- FEEDBACK: Integrated auxiliary contacts (1 NO + 1 NC)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals)
- COOLING METHOD: Natural convection
- MOUNTING STYLE: Vertical, DIN rail 35 mm or screw fixing
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Motor control, resistive load switching, inductive load switching, capacitor bank switching
- SPECIFIC MACHINE TYPES: Conveyor systems, pumps, fans, HVAC systems, general industrial machinery