The Siemens 5SU1356-7KK20 is a Residual Current Operated Circuit Breaker (RCCB) of Characteristic type C. This 20A circuit breaker is suitable for use in three-phase current systems before input circuits with rectifiers. Type C, is for the general device protection in control circuits.
Applications include frequency converters, medical devices and UPS systems.
- Short-circuit and overload protection
- Error protection in safety measures for protection against electrical shock
- Number of pins: 1
- Operating voltage: 230V AC
- Differential current rating: 0.03A
- Nominal current: 20A
- Fuse type (category): RCCB
- Release characteristics: B
- Dimensions: 70(D) x 90(H) x 36(W)mm
- Type: DIN Rail Ground Fault Circuit
- Manufacturer's part: Siemens 5SU1356-7KK20
| Type |
RCCB |
| Current Rating |
20a |
| Voltage Rating - AC |
230V AC |
| No. of Poles |
1 |
| Actuator Type |
Toggle |
| Tripping Characteristics |
C |
| Ambient temperature during operating |
N/A |
| Anti-nuisance tripping version |
true |
| Built-in depth |
70mm |
| Concurrently switching neutral conductor |
true |
| Connectable conductor cross section multi-wired |
0.75 - 35mm² |
| Connectable conductor cross section solid-core |
0.75 - 35mm² |
| Current limiting class |
3 |
| Current Ratng |
20A |
| Degree of protection (IP) |
N/A |
| Disconnection characteristic |
N/A |
| Flush-mounted installation |
true |
| Frequency |
N/A |
| Leakage current type |
A |
| Number of pins |
2 |
| Number of Poles |
1+neutral |
| Number of poles (total) |
2 |
| Number of protected poles |
1 |
| Overvoltage category |
N/A |
| Pollution degree |
2 |
| Power loss |
N/A |
| Rated current |
20A |
| Rated fault current |
0.03A |
| Rated impulse withstand voltage Uimp |
4kV |
| Rated insulation voltage Ui |
264V |
| Rated short-circuit breaking capacity according to EN 61009 |
6kA |
| Rated short-circuit breaking capacity according to IEC 60947-2 |
15kA |
| Rated short-circuit breaking capacity Icn according to EN 61009-1 |
6kA |
| Rated voltage |
230V |
| Surge current capacity |
1kA |
| Voltage Rating |
230V |
| Voltage type |
AC |
| Width in number of modular spacings |
2 |
| With interlocking device |
true |
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