PRODUCT DESCRIPTION
SIEMENS 8UC7220-3BB - Motor Starter Protector
The SIEMENS 8UC7220-3BB is a SIRIUS 3RV2 series motor starter protector designed for reliable overload and short-circuit protection of three-phase AC motors. This electromechanical device integrates thermal overload release and instantaneous magnetic short-circuit release functionalities, ensuring operational safety and system integrity in industrial motor control applications. It is suitable for deployment in control panels, motor starter combinations, and distributed control systems requiring robust motor protection.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RV2
- COMPONENT TYPE: Motor Starter Protector (Circuit Breaker for Motor Protection)
- ELECTRICAL SPECS:
- NOMINAL OPERATIONAL VOLTAGE: Up to 690V AC
- ADJUSTABLE CURRENT RANGE: 1.6 A to 2.5 A
- TRIPPING CLASS: CLASS 10
- NUMBER OF POLES: 3-pole
- SHORT-CIRCUIT BREAKING CAPACITY: 50 kA at 400V AC
- RATED INSULATION VOLTAGE: 690V
- RATED IMPULSE WITHSTAND VOLTAGE: 6 kV
- MECHANICAL/PHYSICAL:
- FRAME SIZE: S00
- TERMINAL TYPE: Screw terminals
- ACTUATION: Rotary knob
- INTERFACE/CONTROL:
- TRIP INDICATION: Mechanical trip indicator
- AUXILIARY CONTACTS: Not integrated compatible with optional add-on auxiliary switch blocks
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminal area)
- MOUNTING STYLE: DIN rail (35 mm) or screw mounting
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- MOTOR PROTECTION: Three-phase AC motors
- SYSTEM INTEGRATION: Suitable for use in motor starter combinations, main circuits, and control panels
- APPLICATIONS: Conveyor systems, pumps, fans, machine tools, general industrial machinery