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OVERVIEW
Official designation: Fuji SA53C (SA Series, Molded Case Circuit Breaker)
Role/Application: A three-pole molded case circuit breaker for general line protection, offering thermal magnetic overcurrent protection up to 50 A in varying AC/DC systems.
KEY SPECS SUMMARY
Power: 690 V AC / 250 V DC
Interfaces / Ports: Screw terminals
Indicators: Trip position flag
Operating Temp: Minus 20 to plus 60 degrees C
Platform / Compatibility: Panel mount, compatible with internal accessories
Limit: 5 kA to 25 kA interrupting capacity at varying voltage
Lifecycle: Discontinued (Replacement: BW50SAG-3P050)
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What are the primary short-circuit interrupting capacities for the SA53C?
A: Interrupting capacities (Icu/Ics) are 10/5 kA at 230 V AC and 5/3 kA at 500 V AC.
Wiring & Installation:
Q: Can the SA53C breaker be field-modified with accessories for system signaling?
A: Yes, accessories like auxiliary switches, alarm switches, and shunt trips can be field installed.
Troubleshooting & Compatibility:
Q: Does the SA53C meet international safety standards for industrial use?
A: The breaker is certified to multiple global standards including IEC 60947-2, UL, and CE Marking.
Replacement & Upgrades:
Q: What is the recommended modern replacement for the Fuji SA53C circuit breaker?
A: The currently recommended replacement from Fuji Electric is the BW50SAG-3P050 model.
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| After-sales Service Contact or Customer Support Number | See this page for details |
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