The Schneider Electric WATSGA250/4R is a three-phase, 4-wire, manual changeover switch with a rated current of 250A. Designed for power supply transfer applications, it allows safe and reliable manual switching between two independent AC power sources (e.g., Main Grid and Generator) in low-voltage distribution systems.
Parameter Specification
Product Series WATSN / WATSGA (Manual Changeover Switch)
Model WATSGA250/4R
Rated Operational Current (Ie) 250 A
Number of Poles / Wiring 4-Pole (3 Phase + Neutral)
Rated Insulation Voltage (Ui) 1000V AC
Rated Operational Voltage (Ue) 690V AC
Utilization Category AC-33B (Switching of resistive and mixed loads, including moderate overloads)
Short-Time Withstand Current (Icw) Typically 10 kA for 1 second (confirm with datasheet)
Mechanical Life ≥ 10,000 operations
Electrical Life ≥ 5,000 operations at rated current
Control Manual rotary handle operation with clear "I-0-II" positions (Source 1 - Off - Source 2).
Interlock Mechanical interlock prevents connection of both sources simultaneously.
Mounting Panel-mounted or baseplate-mounted.
Connection Front or rear cable/bar connections (specific terminal types may vary).
Standards IEC 60947-1, IEC 60947-3, CCC, CE
Protection Degree (Enclosure) Typically IP20 (as mounted in panel).
Dimensions / Weight Refer to official datasheet for exact specifications.