Operation: They can be operated manually, with a pneumatic piston or with an adapted motor (see list) up to 50.000 cycles thanks to fixed cast copper connections. Phase to Phase distance, Signaling, Terminal Box or Locking system can be studied and customized. Small making or braking capacity (on request) Maximum frequency up to 175Hz Indoor in a currentless state Ambient air should not exceed +40°C (otherwise please consult) Altitude should not exceed 1000 m Relative humidity should not exceed 95% List 2 following IEC 62271-1.