Miniature circuit breaker 400 V 15kA, 2-pole, C, 4 A Miniature circuit breaker SENTRON for fail-safe short-circuit and overload protection for residential and non-residential buildings and special industrial applications. Assembly and disassembly of the device without tools using a double slide. Any combination of conductors and busbars thanks to dual-chamber terminals.
Simple wiring of the infeed through the rear busbar. The 5SY miniature circuit breakers are available in 1-, 2-, 3-, 4-pole and 1+N- and 3+N-pole versions. All accessories can be used as standard for all 5SY miniature circuit breakers.
Simply safe with the protection devices from SENTRON.
| Additional equipment possible | Yes |
| Ambient temperature during operating | 55 °C |
| Built-in depth | 70 mm |
| Connectable conductor cross section multi-wired | 0.75 mm² |
| Connectable conductor cross section solid-core | 35 mm² |
| 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 | 2.6 W |
| Rated current | 4 A |
| Rated impulse withstand voltage Uimp | 4 kV |
| Rated insulation voltage Ui | 440 V |
| 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 |
Complete technical specifications (PDF)
Product brochure and catalog information
Installation and operation guide
Wiring and connection guide
Compliance and certification documents
Mechanical dimensions and mounting
Manufacturer product page and specifications
Product approvals and certificates
Environmental Product Declaration
Full specifications, datasheets and downloads