The TA10D2S0403TPE is a Schneider Electric TransferPacT automatic transfer switch (ATS) — PC-class per IEC 60947-6-1, meaning it is a switching device rated for source transfer, not just isolation. It carries a 40 A rated operational current (Ie) on a 2-pole configuration, suited for single-phase changeover applications where uninterrupted duty is required.
The AC-33b utilization category (IEC 60947-6-1) is the key selection gate: it covers switching of mixed resistive and inductive loads including motors up to 15 A inrush, plus tungsten and discharge lighting. This is not a general-purpose contactor — it is a transfer switch designed for source changeover, not frequent load switching. The mechanical interlocking ensures both sources cannot close simultaneously, which is mandatory for compliance with transfer-switch safety requirements. The impulse withstand (Uimp) is 6 kV for both. These numbers confirm the switch is suitable for 230 V AC networks with adequate margin for surge events in industrial environments with pollution degree 3. Short-time withstand (Icw) is 5 kA for 0.1 s. Short-circuit making capacity (Icm) is 15 kA for the switch-disconnector alone at 400 V AC, rising to 75 kA with an upstream circuit breaker.
Mounts on either a plate or DIN rail. The 310 mm width and 147 mm height mean it occupies roughly three standard 9-module DIN-rail positions in width — plan panel space accordingly. IP40 on the front face in auto mode; IP20 inside the enclosure in manual mode. The front-face rating means it is splash-protected against tools and fingers but not washdown — suitable for dry indoor panel environments. The padlockable OFF position satisfies lockout/tagout requirements for maintenance access.