Overview
The A9S70790 is a Schneider Acti 9 iSW-NA switch disconnector, 3-pole configuration rated for 100 A switching current at 415 V AC. It is designed for control and isolation duties in low-voltage distribution boards, with clip-on DIN-rail mounting and an IP20 finger-safe enclosure.
Function & operation
This switch disconnector provides visible isolation with a positive ON/OFF indication and a contact position indicator, conforming to EN/IEC 60947-3 for suitability as an isolating device. Its AC-22 A utilization category covers switching of resistive and mixed resistive-inductive loads up to 100 A. The unit also carries a rated short-circuit making capacity of 5 kA when used alone, sufficient for most distribution-level fault scenarios.
Applications
The A9S70790 is installed in Acti 9 distribution boards for main incoming isolation, sub-feed switching, and load-break disconnection in commercial and light industrial panels. Its 3-pole form suits three-phase circuits where all phases must be switched together, such as motor feeder isolation or HVAC distribution.