5SY5440-7
The 5SY5440-7 is a Siemens SENTRON 5SY5 series full current sensitive miniature circuit breaker. It has 4 poles, a rated current of 40A, a type C trip curve, a rated voltage of 400V AC/880V DC, and a short-circuit breaking capacity of 10/15kA. It is suitable for overload and short-circuit protection in general industrial and distribution box circuits.
Product Positioning
The 5SY5440-7 is a 4-pole miniature circuit breaker from the Siemens SENTRON 5SY5 series. It features type C tripping characteristics, a rated current of 40A, and is a full current-sensitive design that can be used in both AC and DC circuits.
Core Product Advantages and Features
Full current (AC/DC) sensitive design
The 5SY5 series is a full current-sensitive miniature circuit breaker that can withstand 880V DC in addition to 400V AC circuits, making it suitable for power distribution systems that require both AC and DC protection.
C-type bounce characteristics
It adopts a C-type tripping curve, and the instantaneous tripping current is about 5 to 10 times the rated current, which is suitable for general loads and motor circuits with starting surge current.
Rated current 40A
The rated current is 40A, which can be selected according to the capacity of the 4-pole circuit. It is equipped with standard DIN rail for easy installation and maintenance in the distribution box.
Short circuit breaking capacity
With a short-circuit breaking capacity of 10 kA (EN 60898) / 15 kA (IEC 60947-2, DC), it provides reliable protection when a short-circuit fault occurs in the circuit, reducing the risk of equipment and line damage.
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5SY5425-7
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