The MGP1604NAX is a Schneider Electric PowerPact 4 switch disconnector rated 160 A continuous, 4 poles, for 415 V AC isolation duty. It carries AC-22A/AC-23A and DC-22A/DC-23A utilisation categories.
This part is marked obsolete by the manufacturer. If you are planning a new panel design, consider the active PowerPact 4 variants with similar 160 A, 4-pole isolation ratings; the mechanical footprint (161 mm H x 140 mm W x 86 mm D, backplate mount) is a common form factor in the series.
Mounts on a backplate — no DIN-rail clip. The IP40 enclosure and IK07 impact resistance suit it for enclosed panel installation where accidental tool contact is possible but washdown is not required. The toggle control provides a visible contact position indicator, confirming isolation per BS EN 60947-3. Short-time withstand ratings: 2500 A for 1 s or 3 s, and 960 A for 20 s — useful for coordinating with downstream protection devices in a selective coordination study.