The Schneider Electric TA16D3L1004TPE is a TransferPacT automatic transfer switch (ATS) rated for changing the source of supply in a low-voltage distribution panel. It is a PC-class device per IEC 60947-6-1, meaning it is designed for switching between two independent power sources — typically a utility feed and a generator — with mechanical interlocking that prevents both sources closing simultaneously. The 100 A rated operational current (Ie) at 400 V AC, 50/60 Hz, with an AC-33B utilization category, covers motor, resistive, and mixed loads including moderate overloads during transfer. The 3-pole configuration suits three-phase systems.
Fault-handling capability is defined by the rated short-time withstand current (Icw) of 10 kA for 0.1 s and the rated short-circuit making capacity (Icm) of 154 kA with an upstream protection circuit breaker at 400 V AC. The 10 kA Icw means the switch can hold a fault current for 0.1 s while an upstream breaker clears — long enough for most molded-case breakers to trip. The 154 kA Icm figure applies only with a specific upstream breaker; without it, the switch alone makes 20 kA. This drives coordination: the upstream protective device must be selected to keep let-through energy within the switch's withstand.
Dimensions are 351 mm wide, 164 mm high, and 95 mm deep — a substantial footprint that requires planning for panel layout and gland plate clearance. The LCD screen and four push-buttons provide local control and status indication without needing a separate HMI.
The switch is designed to IEC 60947-6-1, the standard for automatic transfer switches. It carries a suitability-for-isolation marking, meaning it can be used as a disconnecting means under lockout/tagout procedures — the padlockable OFF position supports that. The mechanical interlocking ensures that both sources cannot be connected simultaneously, which is a safety requirement for any dual-feed system. The contact position indicator and three contact positions (source 1, source 2, OFF) give clear visual feedback during maintenance.