5SY8640-7

The SENTRON 5SY8640-7 is a miniature circuit breaker in the 5SY8 series. It features a 3+N 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 three-phase four-wire industrial power distribution circuits and provides stable and reliable overload and short-circuit protection.

Share To

Siemens SENTRON 5SY8640-7 Miniature Circuit Breaker (MCB) 3+N Pole 40A C-Curve

Product Positioning

The SENTRON 5SY8640-7 is a 3+N 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, suitable for industrial three-phase power distribution systems.

Core Product Advantages and Features

3+N configuration

It protects both the three-phase and neutral circuits, making it suitable for three-phase four-wire industrial power distribution systems.

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 mixed circuits of motors and lighting.

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+N 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

Recommend

5SY8540-7

The SENTRON 5SY8540-7 is a miniature circuit breaker in the 5SY8 series. It features a 1+N 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 230V. It is suitable for single-phase power distribution circuits and provides stable and reliable overload and short-circuit protection.

5SY8363-7

The SENTRON 5SY8363-7 is a miniature circuit breaker in the 5SY8 series. It features a 3-pole design, a rated current of 63A, 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.

5SY8350-7

The SENTRON 5SY8350-7 is a miniature circuit breaker in the 5SY8 series. It features a 3-pole design, a rated current of 50A, 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.