ОПИСАНИЕ ПРОДУКТА
SIEMENS 3WL1225-2CB34-4AJ2-ZK07+S08 - Air Circuit Breaker
This SIEMENS 3WL series fixed-mounted air circuit breaker provides robust overcurrent and short-circuit protection for industrial low-voltage power distribution systems. Equipped with an advanced ETU76B electronic trip unit, it offers comprehensive LSI (Long-time, Short-time, Instantaneous) protection characteristics. This component is engineered for critical applications in main incoming feeders, generator protection, and large motor control centers within industrial plants and commercial infrastructure.
Technical Specifications:
- SERIES/FAMILY: SIEMENS 3WL
- COMPONENT TYPE: Air Circuit Breaker (ACB), Fixed-mounted
- ELECTRICAL SPECS:
- NOMINAL CURRENT: 2500A
- POLES: 3-pole
- RATED OPERATIONAL VOLTAGE: Up to 690V AC
- RATED FREQUENCY: 50/60 Hz
- RATED SHORT-CIRCUIT BREAKING CAPACITY (Icu): 65kA at 400V AC (Standard breaking capacity)
- TRIP UNIT: Electronic Trip Unit ETU76B (LSI protection)
- MECHANICAL/PHYSICAL:
- FRAME SIZE: II
- OPERATING MECHANISM: Motorized, AC 200-240V
- AUXILIARY CONTACTS: 4 Normally Open (NO) + 4 Normally Closed (NC)
- MOUNTING: Fixed-mounted
- INTERFACE/CONTROL:
- TRIP UNIT FUNCTIONS: Long-time, Short-time, Instantaneous protection
- COMMUNICATION: Communication module COM100 (Modbus RTU) via ZK07 option
- I/O: Integrated auxiliary switches (4NO+4NC)
- ENVIRONMENTAL/MOUNTING:
- MOUNTING STYLE: Fixed-mounted for panel integration
- COOLING: Natural air cooling
- IP RATING: Typically IP20 (front, when installed in enclosure)
- COMPATIBILITY/APPLICATION:
- POWER DISTRIBUTION: Main incoming, feeder, and generator protection
- SYSTEMS: Low-voltage switchgear, industrial power plants, commercial buildings, motor control centers
- SPECIAL FEATURES: Specific option code S08 for enhanced functionality or connectivity, requiring detailed documentation lookup.