PRODUCT DESCRIPTION
SIEMENS 3WL1225-2FG75-4GA2 - Air Circuit Breaker
This SIEMENS 3WL1 series Air Circuit Breaker is a fixed-mounted, 4-pole device with a 2500A frame and 2500A rated current, integrating an advanced ETU75 electronic trip unit for comprehensive protection. Engineered for main and sub-distribution boards in industrial and commercial power systems, it provides reliable overcurrent, short-circuit, and ground fault protection for critical infrastructure, ensuring system integrity and operational continuity.
Technical Specifications:
- SERIES/FAMILY: 3WL1
- COMPONENT TYPE: Air Circuit Breaker (ACB)
- ELECTRICAL SPECS:
- NOMINAL CURRENT: 2500A
- FRAME SIZE: 2500A
- POLES: 4-pole
- NOMINAL VOLTAGE: Up to 690VAC
- OPERATIONAL VOLTAGE: 400/415VAC, 50/60Hz (typical industrial application)
- BREAKING CAPACITY (Icu/Ics): 65kA / 65kA at 400VAC (typical for 3WL1225 frame, specific variant '2' implies standard performance)
- FREQUENCY: 50/60Hz
- MECHANICAL/PHYSICAL:
- MOUNTING TYPE: Fixed mounted
- OPERATION: Stored energy mechanism, manual or optional motor operation
- FRAME SIZE: Size 2
- INTERFACE/CONTROL:
- TRIP UNIT: Electronic Trip Unit ETU75 (Advanced LSI protection, ground fault, neutral protection, measurement functions)
- FEEDBACK/CONTROL: Integrated auxiliary contacts, shunt trip, undervoltage release, and potential for communication module (e.g., Modbus RTU, PROFINET)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (for panel interior)
- COOLING METHOD: Natural convection
- INSTALLATION: Indoor, vertical panel mounting
- COMPATIBILITY/APPLICATION: Main power distribution, sub-distribution, generator protection, transformer protection, large motor control, industrial plants, commercial buildings, data centers.