
The switch has two different posi-tions: close and open, with an effective locking system that prevents incorrect operations.
IM6-PM outdoor switches are contained in stainless steel tanks filled with SF6 gas.
Inside the stainless steel tank is placed the 3-phase switch, which can assume 2 positions: closed and open.
The rotary motion of the shaft is made by an operating mechanism placed on the front.
The stainless steel tank is equipped with a safety valve, which ensures safety in case of failure due to internal overpressure; in addition, a proper manometer assembled inside the operating mechanism and visible from the outside constantly monitors the pressure.
The IM6-PM switch is designed be connected on overhead lines and to be installed in the modern telecontrol networks.
The IM6-PM switch is maintenance free even in harsh environment conditions.
| Rated voltage | kV | 24 | 36 | 
| Rated power-frequency withstand voltage 50Hz 1min | kV (r.m.s.) | 50 | 70 | 
| Rated lightning impulse withstand voltage | kV (peak) | 125 | 170 | 
| Rated frequency | Hz | 50-60 | |
| Rated current | A | 630 | |
| Rated short-circuit current | kA | 20 - 3s | |
| Peak value | kA | 50 | |