product description

 FN12-12D/630-20 indoor AC high-voltage load switch (hereinafter referred to as FN12-12D load switch) is a three-phase high-voltage switchgear with a rated voltage of 12KV and a rated frequency of 50Hz. No-load transformer and cable charging current, close short-circuit current. The load switch equipped with the grounding switch can withstand short-circuit current.

 FN12-12D.R/100-31.5 type indoor AC high voltage load switch - fuse combination (hereinafter referred to as FN12-12D.R combination) is a FN12-12D load switch disconnecting and S LAJ-12 (XRNT ) -12) Indoor high-voltage switchgear combined with high-voltage current-limiting fuses. It can reliably interrupt any current up to the short-circuit current: the load switch interrupts the working current, the fuse interrupts the short-circuit current, and jointly interrupts any overcurrent between the working current and the full short-circuit current, and the fuse through its striker makes The load switch is open.

Model and meaning

See picture on desktop

normal working environment

 1. Ambient air temperature: upper limit +40°C, lower limit -25°C.

2. The altitude is 1000m and below.

 3. Relative humidity: the monthly average is not more than 90%, and the daily average is not more than 95%.

 4. The surrounding air should not be obviously polluted by corrosive or combustible gas and water vapor.

5. No regular strenuous exercise.

6. Anti-pollution grade: Class II.

 If the conditions of use exceed the above-mentioned provisions, it shall be determined by the user and the manufacturer through negotiation.

Technical parameters performance

Mechanical characteristic parameters

The main technical parameters