The Siemens 5SJ6410-7RC is a 4-pole miniature circuit breaker from the SENTRON 5SJ6 Retail line, rated at 10 A with a C trip characteristic and a 6 kA breaking capacity per IEC/EN 60898. The C-curve (5–10× In) suits loads with moderate inrush, such as small motors, pumps, and lighting banks.
Selectivity and coordination
For selectivity with upstream breakers, the C-curve's instantaneous trip band (50–100 A) allows cascading with a 63 A or 80 A gG fuse or a higher-rated B-curve MCB. In a panel, the 4-pole format (3P+N or 4P depending on wiring) fits standard DIN-rail enclosures with 72 mm width (4× 18 mm modules).