Specifications Parameter Specification Product Line WATSNB Automatic Transfer Switch Rated Current (Ie) 160 A (per pole, for both sources) Number of Poles 3 Poles (3P) Transition Type Closed Transition (Parallel) – Sources are briefly paralleled during transfer. Switching Elements Two Compact NSX or equivalent series MCCBs (160A frame), interlocked. Rated Voltage (Ue) Typically 400/415V AC, 50/60 Hz Breaking Capacity Inherited from the MCCBs used (e.g., 50kA, 70kA). Controller Advanced microprocessor-based controller (implied by CBR). Core Controller Functions • Closed Transition Control: Manages precise synchronization, paralleling, and load transfer. • Source Monitoring: Continuous voltage & frequency monitoring of both sources. • Synchronization Check (Sync Check): Ensures sources are within safe limits (voltage, frequency, phase angle) before allowing parallel operation. • Programmable Delays: Start command, cool-down, transfer, and parallel time settings. Operation Modes Automatic, Manual, Off/Test. Mechanical & Electrical Interlocks Prevents simultaneous closure of both source breakers. Enclosure Typically a factory-assembled panel or enclosed unit. Standards IEC 60947-6-1, UL 1008, CSA