The Schneider Electric WATSNA-63/63.4CBR is a dual-power automatic transfer switch (ATS) designed to manage the switching between two independent power sources (such as primary utility power and backup generator) for three-phase systems with neutral (3P+N)
Specifications
General
Product Type: Automatic Transfer Switch (ATS)
Model: WATSNA-63/63.4CBR
Configuration: 3P+N (three-phase + neutral)
Application: Automatic transfer of load between two power sources to ensure continuity
Mounting: Fixed installation in distribution boards or switchgear
Electrical Ratings
Rated Operational Voltage (Ue): Typically 400V AC, 50/60Hz (for three-phase systems)
Rated Current: 63A
Number of Poles: 4 (three phases + neutral)
Rated Insulation Voltage: Typically 690V AC
Rated Impulse Withstand Voltage (Uimp): 8kV
Short-Circuit Withstand Capability: 17kA peak
Performance & Functions
Automatic Transfer Function: Automatically detects loss of primary supply and transfers load to the secondary source
Manual Override: Allows manual selection of the active power source
Status Indicators: Clear visual indicators for showing which source is active
Fault Handling: Includes protection against failed transfers and potential faults
Control Interface: Can support remote monitoring and control via external interfaces
Mechanical & Environmental
Housing: Modular design for easy integration into electrical panels
Degree of Protection: Typically IP40 (front face)
Operating Temperature Range: -5°C to +40°C
Cable Connections: Screw or clamp terminals for secure attachment of power cables
Mounting: Compatible with DIN rail or front-panel installation