The Schneider Electric Harmony WATSNA63/4 is a watertight, 4-pole, 63A switch-disconnector from the Harmony WATSNA series. Designed for robust performance in harsh, wet, and dusty environments, it provides safe isolation, manual load switching, and emergency switching of electrical circuits.
Parameters:
Parameter Value / Description
Product Series Harmony WATSNA (Watertight Switch, High Current)
Rated Operational Current (Ie) 63 A
Utilization Category AC-22A / AC-23A (For switching of mixed resistive and inductive loads, including motor loads up to its rating). Capable of making and breaking current under load.
Number of Poles (Main) 4 (L1, L2, L3, N)
Auxiliary Contacts Likely 4 (As suggested by /4 in the model, used for remote position signaling). Exact configuration (e.g., 2NO+2NC) to be confirmed by catalog.
Rated Operational Voltage (Ue) Up to 690 V AC
Rated Insulation Voltage (Ui) 690 V
Protection Rating (IP) IP65 (Dust-tight and protected against water jets) when properly closed. IP66 is typically an option.
Enclosure Material Polycarbonate (PC) or Stainless Steel (SS) – High impact, corrosion and UV resistance.
Mounting Surface mounting.
Actuation Manual rotary handle operation. Handle is usually removable for locking in the OFF position (up to 3 padlocks).
Position Indication Clear "O" (OFF/Open) and "I" (ON/Closed) markings, with a visible contact position indicator.
Mechanical Life High (e.g., ≥ 50,000 operations)
Electrical Life Depends on load (e.g., ≥ 10,000 operations at rated current).
Standards IEC/EN 60947-1 and IEC/EN 60947-3 (for switch-disconnectors)
Ambient Temperature Typically -25°C to +60°C