10 A Trip Curve K — what it means for motor and transformer circuits
The S802C-K10: The magnetic trip threshold for Curve K sits between 8 and 12 times the rated current (80–120 A instantaneous), so it passes the magnetizing inrush of a 10 A-rated transformer or the locked-rotor surge of a small motor without opening. The thermal element handles the continuous 10 A load. The 2-pole form factor switches both poles simultaneously, which matters for single-phase circuits where you need to break line and neutral together.
Panel fit and coordination
The S800C family uses a shared busbar system and accessory range (auxiliary contacts, shunt trips, undervoltage releases) that clip onto the breaker body without extra wiring. If you're coordinating downstream of a larger MCCB, the 15 kA rating at 230 V AC gives headroom for a 10 kA prospective fault at the sub-distribution board.