250amp Dual Power Manual Or Automatic Transfer Switch

250amp Dual Power Manual Or Automatic Transfer Switch

Product description:

Quick Details

  • Place of Origin: Zhejiang, China (Mainland)

  • Brand Name: YUYE

  • Model Number: YES1-250NA

  • Max. Current: 250A

  • Max. Voltage: 660V

  • certificates: CE/ CCC/ ISO9001

  • rated frequency: 50/60Hz

  • poles available: 3/4p

  • rated current: 160/200/250A

  • mechanical life: 6000times

Packaging & Delivery

Packaging Details: standard carton and wooden case
Delivery Detail: normally within 15days


1) hot sale in Middle East, South Africa, American;
2) reliable quality;
3) certificates CE/ CCC/ ISO9001.

250amp Dual Power Manual or Automatic Transfer Switch


It is in line with GB/ T14048.11 superscript, and also with high-rise buildings fire norms and Architectural Design firenorms', Emergency Lighting Design Guide', Civil Electrical Design Specification'.


YES1-250NA automatic transfer switch equipment (ATS) is used in the power system of rated voltage 240/415VAC (110/380/660 VAC optional) ,rated frequency 50/60Hz. when one power supply system has fault, it can transfer between main power and backup power automatic without manual operation. the main applied places likefire control, postal communication, hospital, hotel, urban rail transportation, high building, industrial assembly line, television station etc where power interruption is not permitted.


the ats is composed switch body and transferring controlle. it adopts electromagnetic drive, the working power of the transferring controller mainly is from main and backup power 220V , no extra control voltage and the switch body has the electrical and mechanical closing indication as the indication of isolation function.