5SY4263-7
The Siemens SENTRON 5SY4263-7 miniature circuit breaker is a 2-pole, C-type tripping circuit breaker with a rated current of 63A, a rated voltage of 400V AC, a breaking capacity of 10kA, and a 35mm DIN rail mounting. It is suitable for overload and short-circuit protection of distribution panel feeders and main circuits of large power equipment.
Product Positioning
The 5SY4263-7 is a Siemens SENTRON 5SY4 series 2-pole miniature circuit breaker. It adopts a C-type tripping curve, has a rated current of 63A, a breaking capacity of 10kA, and an installation depth of 70mm. It is suitable for use in distribution panel feeders and main circuits of large power equipment.
Core Product Advantages and Features
C-type tripping curve
The instantaneous tripping current is approximately 5 to 10 times the rated current, which can withstand the inrush current of inductive loads such as motors and transformers, reducing false tripping.
2-pole synchronous break
Each pole is mechanically linked, and if any pole fails, both poles will disconnect simultaneously, ensuring complete isolation of a single-phase two-wire circuit and preventing phase loss or single-sided energization.
10kA interruption capacity
Rated short-circuit breaking capacity of 10kA according to IEC/EN 60898-1, suitable for power distribution in industrial and commercial buildings.
DIN rail quick installation
Standard 35mm DIN rail snap-fit installation; inlet and outlet terminals can be used with busbars, making installation and replacement convenient.