The Siemens 5SY6202-7 is a SENTRON 5SY6-series miniature circuit breaker (MCB), 2-pole configuration with a rated current of 2 A. It provides reliable overload and short-circuit protection for low-voltage AC and DC circuits in residential, commercial, or light-industrial electrical installations. Its compact 2-pole design and DIN-rail mounting make it suitable for compact distribution boards and general circuit protection applications.
This 5SY6202-7 miniature circuit breaker is ideal for protecting branch circuits in distribution boards — such as lighting circuits, small socket-outlet circuits, control circuits, or other low-current loads. It is suitable for residential, commercial or light-industrial installations requiring compact 2-pole protection, simple DIN-rail mounting and reliable overcurrent/short-circuit protection. It can be used for both single-phase and multiphase AC circuits, and DC circuits up to its rated voltage.
| Additional equipment possible | Yes |
| Ambient temperature during operating | -25 °C |
| Built-in depth | 70 mm |
| Connectable conductor cross section multi-wired | 35 mm² |
| Connectable conductor cross section solid-core | 0.75 mm² |
| Current limiting class | 3 |
| Degree of protection (IP) | IP20 |
| Frequency | 50 Hz |
| Number of poles (total) | 2 |
| Number of protected poles | 2 |
| Over voltage category | 3 |
| Pollution degree | 3 |
| Power loss | 2.4 W |
| Rated current | 2 A |
| Rated impulse withstand voltage Uimp | 4 kV |
| Rated insulation voltage Ui | 440 V |
| Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V | 6 kA |
| Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V | 6 kA |
| Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V | 30 kA |
| Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V | 30 kA |
| Rated voltage | 400 V |
| Release characteristic | C |
| Voltage type | AC |
| Width in number of modular spacings | 2 |
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