PRODUCT DESCRIPTION
SIEMENS 3VA1450-5MH32-0AA0 - Molded Case Circuit Breaker (MCCB) with Electronic Trip Unit
This SIEMENS SENTRON 3VA1 series molded case circuit breaker provides overcurrent and short-circuit protection for industrial electrical installations. Equipped with an ETU320M electronic trip unit, it offers adjustable LSI (Long-time, Short-time, Instantaneous) protection, ground fault capability, and integrated measurement functions for current, voltage, power, and energy. Designed for distribution boards, motor control centers, and general industrial power distribution applications, it ensures reliable system operation and enhanced diagnostic capabilities.
Technical Specifications:
- SERIES/FAMILY: SENTRON 3VA1
- COMPONENT TYPE: Molded Case Circuit Breaker (MCCB)
- ELECTRICAL SPECS:
- RATED CURRENT (In): 450A
- NUMBER OF POLES: 3
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690V AC
- RATED INSULATION VOLTAGE (Ui): 800V
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 8kV
- RATED SHORT-CIRCUIT BREAKING CAPACITY (Icu) at 415V AC: 55kA (H class)
- RATED SHORT-CIRCUIT BREAKING CAPACITY (Icu) at 690V AC: 10kA
- FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- FRAME SIZE: 400/630A frame
- MOUNTING: Fixed mounting
- TERMINAL TYPE: Front connection terminals
- INTERFACE/CONTROL:
- TRIP UNIT TYPE: Electronic Trip Unit ETU320M
- PROTECTION FUNCTIONS: L (Long-time overload), S (Short-time short-circuit), I (Instantaneous short-circuit), G (Ground fault protection)
- MEASUREMENT FUNCTIONS: Current, Voltage, Power, Energy
- COMMUNICATION: Optional external communication modules (e.g., Modbus, PROFINET) via COM modules (not included)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (with terminal covers)
- COOLING METHOD: Natural convection
- MOUNTING STYLE: Panel mounting, fixed installation
- OPERATING TEMPERATURE RANGE: -25 to +70 degrees C
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial power distribution, commercial buildings, infrastructure
- MACHINE TYPES: Main and sub-distribution boards, motor control centers, machinery with high short-circuit current requirements
- STANDARDS: IEC 60947-2