Isolators With And Without Earth Switch Up To 2000 Amp

We supply and install the ULTIMA range of isolators and disconnectors all voltages up to 132kV to all State Electricity Board and private sectors. Ultima also manufactures cost effective and respected disconnectors in all other configurations including Horizontal centre break, double break centre orating blade and banging type.
The moving contact blade is an Aluminum /copper tube with special copper profile with a bimetallic strip fitted with silver plated copper contacts.
The stationary contacts are silver plated copper, spring loaded to maintain constant contact pressure
The electrical contact system is easily and quickly replaced should it be damaged due to a fault current or damaging event
Range of Terminal connectors to suit current requirements.
Robust design and construction
Encapsulation of rotary pedestals and heads
No significant changes of contact resistance over many years of services
Constant contact pressure
Stable rotary pedestals ensure no insulator deflection even with high static loads