PRODUCT DESCRIPTION
SIEMENS 3WA1232-4CF32-8EA4-Z M71 - SENTRON 3WA Air Circuit Breaker
This device is a SIEMENS SENTRON 3WA series fixed-mounted Air Circuit Breaker (ACB), engineered for robust protection and control within industrial power distribution systems. It integrates an advanced Electronic Trip Unit (ETU) for precise overcurrent, short-circuit, and ground fault protection, alongside comprehensive measurement capabilities. Designed for critical applications such as main incoming feeders, generator protection, and large motor control centers, it ensures operational reliability and system integrity.
Technical Specifications:
- SERIES/FAMILY: SENTRON 3WA
- COMPONENT TYPE: Air Circuit Breaker (ACB)
- ELECTRICAL SPECS:
- RATED CURRENT: 2000A
- NUMBER OF POLES: 3-pole
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690VAC
- RATED INSULATION VOLTAGE (Ui): 1000V
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 12kV
- RATED FREQUENCY: 50/60 Hz
- RATED SHORT-CIRCUIT BREAKING CAPACITY (Icu): Typically 55kA to 100kA at 400/415VAC, specific value determined by product configuration.
- RATED SHORT-CIRCUIT OPERATING CAPACITY (Ics): 100% of Icu
- MECHANICAL/PHYSICAL:
- MOUNTING TYPE: Fixed-mounted
- FRAME SIZE: 2000A frame
- OPERATING MECHANISM: Stored energy spring mechanism
- OPERATING CYCLES: Mechanical endurance typically 10,000 cycles
- INTERFACE/CONTROL:
- TRIP UNIT: Electronic Trip Unit (ETU) with LSI (Long-time, Short-time, Instantaneous) protection specific features dependent on ETU variant (implied by -CF32).
- MEASUREMENT FUNCTIONS: Current, Voltage, Power, Energy, Harmonics (dependent on ETU version).
- COMMUNICATION PROTOCOL: Integrated communication module, typically supporting Modbus TCP or PROFINET (indicated by -Z M71 option code).
- AUXILIARY CONTACTS: Configurable auxiliary and alarm switches (implied by -8EA4 accessory block).
- CONTROL VOLTAGE: Typically 24VDC or 110-250VAC for charging motor/shunt trip.
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (front side, without enclosure)
- COOLING METHOD: Natural air convection
- OPERATING TEMPERATURE: -25°C to +70°C
- MOUNTING POSITION: Vertical
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial power distribution boards, switchgear, motor control centers (MCCs), generator protection, transformer protection.
- STANDARDS: IEC 60947-2