- compact group
- compensated damper
- compensating circuit
- completion report
- composite
- composite insulator
- compound
- compound excitation
- compound filling
- compression
- connect
- connected networks
- connected symbol
- connecting lead
- connecting wine
- connecting yoke
- connector
- connector block
- consequent pole
- conservator
- concentric winding
- condenser bushing
- conditioner
- conduction angle
- conductor
- conductor joint
- conduit fittings
- cone valve
- conformance test
- consignment
- consignment note
- constant duty
- constant load
- constant verification
- constantan
- consumer
- consumer electronics
- consumption
- contact arrangement
- contact block
- contact bounce
- contact jaw
- contact pin
- contact potential
- contact welding
- contact wire
- contactor
- content gauge
- continuous cycling
- continuous duty
- consumption peak
- contact bar
- contact blade
- contact brush
- contact button
- contact fault
- contact gap
- contact rod
- contact wheel
- contactfault
- contactless keyswitches
- contactor starter
- container capacity
- continuity tester
- control board
- control relay
- convection superheater
- convegence assembly
- conversion burner
- conversion transducer
- conveyor belt
- cooler
- continuous feed
- continuous slab
- contract
- control field
- control line
- control winding
- controller resistance
- convection current
- converter set
- cooling condition
- coplanar force
- copper alloys
- copper busbar
- copper conductor
- copper fuselink
- copper loss
- copper-clad
- cord
- continuous oscillation
- continuous polisher
- control cable
- control codes
- control curtain
- control wire
- controlled reaction
- convection heating
- converter
- converting station