PRODUCT DESCRIPTION
ASEA BROWN BOVERI 1SDA067557R1 - Molded Case Circuit Breaker
This is an ABB SACE Tmax T4N series molded case circuit breaker, engineered for robust overcurrent protection and isolation within industrial low-voltage distribution systems. It integrates an advanced electronic trip unit for precise fault discrimination and selective coordination. This device is suitable for main, sub-main, and feeder circuit protection in diverse commercial and industrial applications requiring reliable electrical system safeguarding.
Technical Specifications:
- SERIES/FAMILY: ABB SACE Tmax T4N
- COMPONENT TYPE: Molded Case Circuit Breaker (MCCB)
- ELECTRICAL SPECS:
- NOMINAL CURRENT (In): 250A
- POLES: 3-pole
- RATED OPERATIONAL VOLTAGE (Ue): 690VAC
- RATED INSULATION VOLTAGE (Ui): 1000V
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 8kV
- RATED FREQUENCY: 50/60 Hz
- RATED ULTIMATE SHORT-CIRCUIT BREAKING CAPACITY (Icu): 36kA at 400VAC
- MECHANICAL/PHYSICAL:
- FRAME SIZE: T4
- MOUNTING TYPE: Fixed
- TERMINAL TYPE: Front terminals
- INTERFACE/CONTROL:
- TRIP UNIT TYPE: Electronic Trip Unit PR221DS-LS/I
- PROTECTION FUNCTIONS: Long-time (Overload), Short-time (Short-circuit with adjustable delay), Instantaneous (Short-circuit without delay)
- ADJUSTABILITY: Adjustable thresholds and delays for L, S, and I protection functions
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (with terminal covers)
- COOLING METHOD: Natural air convection
- OPERATING TEMPERATURE RANGE: -25 to +70 degrees C
- COMPATIBILITY/APPLICATION: Low-voltage power distribution, motor protection, generator protection, industrial control panels, switchgear assemblies, and feeder circuits.