FN12-12RD/125 -31.5 Indoor AC High-voltage Load Switch(fuse series electricy) is a kind of indoor high-pressure switch equipment combined by FN12-12D load switch  opening&closing and SLAJ-12 XRNT -12high-pressure current-limiting fuse. It can open and close any overcurrent  even short current :load switch opens working current ,fuse opens short current,,together open any overcurrent between working current and short current and the fuse makes load switch open through its impringer. According to the clients order,FN12-12 Indoor AC High-voltage Load Switch can make motor operating agency realize electricty to  open and close and . To satisfy the users order, side installation and upside-down installation can be accepted.

Using conditions,

1.      ambient air temperature , upper limit +40, lower limit-25  

         elevation,:≤1000m

2.      daily average level of relative temperature should less than 95%,monthly average level should less than 90% Amplitude,

3.     The earthquake intensity does not exceed  8 degrees

4.      ambient air should not be obviouly polluted by rusty or inflammable gas and so on.

5.     no frequent violent exercise

6.      pollutin level,level two