AT20 PC-level automatic transfer switch products are composed of automatic transfer switch, special controller and excitation transfer mechanism. The structure part adopts AEG advanced manufacturing technology and production experience, delivering fast conversion speed and high reliability. Reliable driving mechanism and high-power silver alloy contacts enable long-term work and make it not easy to oxidize, to ensure that the electrical performance meets the needs of the system.

The product has mechanical and electrical interlocking, and the controller has logical locking function to ensure that two power sources are not closed at the same time. 

AT20 structure adopts modular design, controller and conversion unit. So the body failure can be quickly replaced or maintained. The controller is connected with the switch by data cable, and can be replaced without turning off the power.

New excitation mechanism, efficient and reliable

High performance excitation coil, low energy consumption, maintenance-free, contact conversion speed can reach 100ms, minimize the power failure time of key equipment.

Utilization category, AC-33B

With high quality silver alloy contacts, the product can be switched on and off 10 times the rated current

Strict environment, stable

ATP910 reliability test, EMC level reached E2, good stability and reliability  under harsh environment 

Easy configuration for different requirements

EA, EH, MT series intelligent controller, according to different needs of various users, can be flexibly configured

Interconnectivity, small size with big wisdom

A full series of industrial-grade chips, support ModBUS communication, real-time power monitoring, smaller size with complete functions