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 |
| Ambient temperature during operating |
-40 - 70°C |
| Built-in depth |
70mm |
| Compatible with (details) |
SENTRON |
| Concurrently switching neutral conductor |
FALSE |
| Connectable conductor cross section multi-wired |
0.75 - 35mm² |
| Connectable conductor cross section solid-core |
0.75 - 35mm² |
| Current limiting class |
3 |
| Current Ratng |
50A |
| Degree of protection (IP) |
IP20 |
| Depth |
76mm |
| Dim |
(W x H x D) 54 x 90 x 76 mm |
| Explosion-proof |
false |
| Factory colour |
Grey |
| Flush-mounted installation |
false |
| Frequency |
50-60MHz |
| Height |
90mm |
| Number of Pins |
3 |
| Number of poles (total) |
3 |
| Number of protected poles |
3 |
| Overvoltage category |
3 |
| Pollution degree |
3 |
| Power loss |
N/A |
| 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 Rating |
400V |
| Voltage type |
AC |
| Width |
54mm |
| Width in number of modular spacings |
3 |
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