The A9S70740: Acti9 iSW-NA switch disconnector rated 40 A at 400/415 V AC in AC-22A utilisation – handles mixed resistive and inductive loads that don't require high switching frequency. Conforms to EN/IEC 60947-3, marked for isolation (off-load switching and safe disconnection). 3P + N poles, neutral on the left, 72 mm wide. Clip-on DIN rail mounting, IP20 finger-safe terminals.
Mounting & Wiring
Tunnel terminals accept 1…35 mm² rigid or 1…25 mm² flexible without cable end. Wire strip 14 mm, torque to 3.5 N·m. Comb busbars compatible top or bottom. Rated short-time withstand 20 kA for 1 second; short-circuit making capacity 5 kA as standalone. Pollution degree 3, tropicalisation class 2 – suited for humid or industrial environments.