The ISOVAC (Integrated, Spatially Optimised Vacuum Circuit Breaker) is a fixed-type 12/17.5kV Vacuum Circuit Breaker designed to be mounted within LKE's IV2000 Air-Insulated M.V switchboards. The ISOVAC12-S and ISOVAC18-S has the following features:

• Maximum breaking capacity of up to 31.5kA
• Short-circuit withstand current of up to 31,5kA / 4sec
• It is driven by a high dexterity motor-charged spring mechanism capable of more than 10,000 mechanical operations.
• Compact design which integrates an isolating-switch module (Optional), a vacuum interrupter module, a current and voltage sensor  module(Optional), an earth-switch module (Optional)  and an interlocked operating mechanism module into one single system.
• Final panel dimensions may be as compact as 520mm X 1800mm X 900mm (WXHXD) for 12kV systems and 550mm X 2000mm X 1100mm (WXHXD) for 17.5kV systems for a single IV2000 panel.

The main modules of  ISOVAC12-S and ISOVAC18-S

ISOVAC12-S32-630

Current-transformers mounted on the ISOVAC