5SY8340-7

The SENTRON 5SY8340-7 is a miniature circuit breaker in the 5SY8 series. It features a 3-pole design, a rated current of 40A, a C-characteristic trip curve, a rated short-circuit breaking capacity of 25kA, and a rated voltage of 400V. It is suitable for industrial three-phase power circuits and provides stable and reliable overload and short-circuit protection.

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Product Positioning

The SENTRON 5SY8340-7 is a 3-pole miniature circuit breaker from the Siemens SENTRON 5SY8 series, offering a rated current of 40A, a C-characteristic curve, and a high breaking capacity of 25kA. It is suitable for industrial three-phase power distribution systems.

Core Product Advantages and Features
3-pole simultaneous motion design
The three phases are activated and deactivated simultaneously to ensure consistent and safe power outage of the power circuit.
25kA high breaking capacity
It can withstand large short-circuit current surges, improving the overall safety of the power distribution system.
C-characteristic jump curve
Suitable for general resistive and moderately inductive loads, such as pump and fan circuits.
Compact 70mm depth design
It saves space in the distribution box and facilitates the upgrading and replacement of existing panels.
project Specification
Extreme number 3 poles
Rated current 40 A
breakout characteristic curve C
Rated short-circuit breaking capacity 25 kA
Rated voltage AC 400 V
Installation depth 70 mm