Switch disconnector for isolation duty
The Schneider Electric A9S60392 is a 3-pole switch disconnector from the Acti9 iSW series, rated 125 A at 415 V AC 50/60 Hz. It is certified for isolation per IEC 60947-3, meaning it provides visible contact gap and positive break indication — the ON/OFF indicator confirms the contact position directly. The AC-22A utilisation category covers switching of resistive and mixed resistive-inductive loads up to that current, which is the typical duty for a panel main isolator or machine disconnect.
Mounts on standard DIN rail with a fixed mounting mode. The 54 mm width (3 x 18 mm pole pitches) and 70 mm depth fit a standard distribution board footprint.
Rated for ambient operation from -20 to 50 °C, storage from -40 to 70 °C, and 95 % relative humidity at 55 °C. IP4 front-face protection (splash-resistant, not washdown-rated). Tropicalisation class 2 indicates treatment against humidity and fungal growth for tropical deployment. Electrical durability is 2500 cycles under load; mechanical durability 50,000 cycles.