At DC (60 V nominal, 72 V max) it interrupts 15 kA per IEC 60947-2. Rated operational voltage is 400 V AC (440 V max single- or multi-phase), 50/60 Hz.
IP20 with conductors connected; pollution degree 3 (conductive pollution typical of control rooms and light industrial floors). Sealable — panel builders can lock the toggle position after commissioning.
Environmental and derating
Ambient temperature range -40 °C to 75 °C, but relative humidity derates above 55 °C: max 95% RH at 55 °C, dropping to 55% at 70 °C and 35% at 75 °C.
Current-production status per Siemens lifecycle data. The 5SY6206-6 carries dual-standard certification: EN 60898-1 (household-type MCB) and IEC 60947-2 (industrial MCB), plus UL 1077 / CSA C22.2 No. 235 for North American acceptance. Overvoltage category III, energy limitation class 3.
