Parameter Typical Specification Product Type Automatic Transfer Switch (ATS) Series / Family WTS / TransferPacT (4‑pole) Model Code Equivalent TW25D4L0324TPU / WTS32/4DL/U Poles 4P (4‑pole, switching three phases + neutral) Rated Current Range 32 A frame (product number suggests 32 A) Rated Operational Voltage (Ue) ~400 V AC, 50/60 Hz (typical for 4P ATS) Network Type AC three‑phase Control Type Automatic with manual override Display / Indication LCD or indicator contacts (depending on exact sub‑model) Mounting / Installation Fixed, panel mounting Connection Type Screwed terminals (line and load) Transfer Class AC‑33B utilization category (motor & power switching) Contact Positions Typically 3 positions (Normal / Off / Emergency) Insulation Voltage (Ui) Typically ~800 V (switch) / ~500 V (controller) in similar models Impulse Withstand Voltage (Uimp) Several kV in accordance with IEC standards Short‑Circuit Making Capacity Rated for typical power distribution duty with upstream protective device Duty Type Uninterrupted service switching Standards / Compliance IEC 60947‑6‑1 and related transfer switch standards Mechanical Durability Typically several thousand cycles Operating Temperature ~‑25 °C to +70 °C Protection Degree Often IP20 inside enclosure