W2H-125A  The Camsco 125A 4-pole ATS is designed for seamless power transition between the main grid and standby generator sets.

Operation Modes: Offers both manual and automatic operation. In manual mode, the device blocks all external signals for maintenance safety. In automatic mode, it features a built-in grid priority logic.

Superior Contact Design: Copper contacts are plated with silver and tungsten. The tungsten coating ensures structural hardness against mechanical wear while maintaining high conductivity.

Fault Protection: Rated for 50kA and 100kA short-circuit capacity. Equipped with advanced arc-extinguishing chambers to protect the system during high-current switching.

Auxiliary Monitoring: Includes auxiliary contacts for remote monitoring: C (Common), ON (Open), and OFF (Closed).

• 
  

  Comparison: Automatic Transfer Switch vs. Contactor System

  
  

  Technical Specification	Full Automatic Transfer Switch (ATS)	Contactor-Based Transfer System
  Standard	IEC 60947-6-1 (Multi-functional)	IEC 60947-4-1 (Contactors)
  Interlocking	Integrated mechanical & electrical locks	Requires external interlock kits
  Operation	Manual & Automatic operation	Automatic only
  Busbar	Built-in bridge, no extra bars needed	Requires external bridge busbars
  Safety	Arc extinguishing chambers included	No specialized arc protection