ОПИСАНИЕ ПРОДУКТА
ASEA BROWN BOVERI 1SDA068345R1 - Molded Case Circuit Breaker
This device is a 3-pole molded case circuit breaker from the ABB SACE Tmax T4N series, engineered for protection and isolation within industrial and commercial electrical distribution systems. It incorporates a PR221DS electronic trip unit, providing adjustable long-time, short-time, and instantaneous fault protection for circuits rated up to 250A. Designed for fixed front terminal mounting, this breaker ensures reliable circuit interruption and system integrity in demanding operational environments.
Technical Specifications:
- SERIES/FAMILY: SACE Tmax T4N
- COMPONENT TYPE: Molded Case Circuit Breaker (MCCB)
- ELECTRICAL SPECS:
- RATED CURRENT (In): 250A
- POLES: 3
- RATED OPERATIONAL VOLTAGE (Ue): 690VAC
- RATED INSULATION VOLTAGE (Ui): 1000V
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 8kV
- RATED ULTIMATE SHORT-CIRCUIT BREAKING CAPACITY (Icu): 36kA at 400VAC
- RATED SERVICE SHORT-CIRCUIT BREAKING CAPACITY (Ics): 36kA at 400VAC
- FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- FRAME SIZE: T4 (250A frame)
- MOUNTING TYPE: Fixed, Front Terminals
- TRIP UNIT TYPE: Electronic
- TRIP UNIT MODEL: PR221DS
- PROTECTION FUNCTIONS: LSI (Long-time, Short-time, Instantaneous)
- ADJUSTABILITY: Adjustable thermal (Ir) and magnetic (Ii, Isd) thresholds via trip unit
- INTERFACE/CONTROL:
- TRIP UNIT INTERFACE: Local adjustment via rotary switches and pushbuttons on PR221DS unit
- FEEDBACK: Trip indication, status indication on trip unit
- AUXILIARY/ALARM CONTACTS: Not integrated as standard external modules available for status signaling
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (with terminal covers)
- COOLING METHOD: Natural Convection
- OPERATING TEMPERATURE RANGE: -25 to +70 degrees C
- STORAGE TEMPERATURE RANGE: -40 to +85 degrees C
- COMPATIBILITY/APPLICATION:
- APPLICATIONS: Overcurrent and short-circuit protection in low-voltage power distribution, motor feeder circuits, generator outputs, and transformer secondary circuits
- STANDARDS COMPLIANCE: IEC 60947-2