Oleopneumatic control system for electric circuit- breakers
Omnidirectional tilt and vibration sensor
On-load tap changer of a step switch
On-the-line distribution cutout switch
On/off relay switch
One piece fusible conductor for low voltage fuses
One piece sliding contact
One-piece air-core coil mounting bracket
One-piece female blade fuse with housing and improvements...
One-piece fusible conductor for low-voltage fuses
One-piece ignition switch for small internal combustion engines
Open contact matrix switch
Open contact matrix switch
Open switch bypass circuit
Opening and closing mechanism for a medium or high voltage...
Operating arrangement for mechanism
Operating device for electric switching apparatus for high...
Operating device for electric switching device
Operating device for enclosed high voltage circuit breakers
Operating handle adapter