The 5SY5413-6: The 13 A rating at 35 °C is the baseline; the datasheet provides a full derating curve — 12.38 A at 40 °C, 12.05 A at 45 °C, 11.73 A at 50 °C, 11.38 A at 55 °C, and 11.02 A at 60 °C. If the breaker lives in a warm enclosure, size up one step or verify the actual ambient against these numbers. For motor or high-inrush loads, a C or D curve would be a better fit. For DC circuits, the same 10 kA applies per EN 60898-2. The 4-pole design (4P) switches all four conductors — three phases plus neutral. This is typical for three-phase loads where the neutral must be switched for isolation, or for TT/TN-S systems where neutral protection is required. The sealable feature (padlockable toggle) allows lockout/tagout per safety procedures.
Deployment context
The breaker carries a degree of pollution 2 rating and overvoltage category II. The product designation per IEC 81346-2 is function code F (protection device).