The Siemens 5SY43507 circuit breaker is a device designed for optimal electrical safety, offering a current rating of 50 A and operational voltages of 230 V to 400 V. It protects electrical circuits by automatically cutting off electrical flow in cases of overload or short circuit. Typically used in residential, commercial, or industrial installations, it ensures system protection and reliability.
| Type |
Circuit breaker |
| Additional equipment possible |
TRUE |
| Built-in depth |
70mm |
| Compatible with (details) |
SENTRON |
| Concurrently switching neutral conductor |
FALSE |
| Current limiting class |
3 |
| Degree of protection (IP) |
IP20 |
| Depth |
76mm |
| Dim |
(W x H x D) 54 x 90 x 76 mm |
| Factory colour |
Grey |
| Frequency |
50-60MHz |
| Height |
90mm |
| Nominal Current |
50A |
| Nominal current - rounded value |
50A |
| Number of Pins |
3 |
| Number of poles (total) |
3 |
| Number of protected poles |
3 |
| Operating Voltage |
440V |
| Overvoltage category |
3 |
| Pollution degree |
3 |
| Rated Current |
50A |
| Rated impulse withstand voltage Uimp |
4 |
| Rated insulation voltage Ui |
440V |
| Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V |
10kA |
| Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V |
10kA |
| Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V |
15kA |
| Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V |
15kA |
| Rated Voltage |
400V |
| Release characteristic |
C |
| Release characteristics |
C |
| Switch-off capacity |
5kA |
| Voltage type |
AC |
| Width |
54mm |
| Width in number of modular spacings |
3 |
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