8 P&B’s experienced team of engineers have worked with defence industry electrical and operations engineers directly across multiple sites as well as through consultants and contractors employed on specific projects.

Our experience in the sector encompasses the supply of new equipment and equipment for replacing or updating existing substation operation. P&B’s portable and temporary earthing equipment has been recognised and specified by the MOD due to the high quality standard of its manufacture.

Replacement of GEC Alsthom VMX vacuum circuit breakers

P&B VOR-M circuit breakers have recently been specified on a large project to replace ageing and problematic GEC Alsthom VMX vacuum circuit breakers on a large UK defence establishment in the south of England.

Due to the sensitive nature of the project, the tender and approval process was extensive, involving thorough scrutiny of type tests performed and confirmation of successful product acceptance by the UK Energy Networks Association. Detailed assessment of P&B’s quality procedures to ensure full adherence to ISO 9001 was also key to the process.

P&B was awarded a large contract to provide almost 50 state-of-the-art magnetic actuator operated VOR-M vacuum circuit breakers.


P&B is a leading UK innovator of electrical protection, safety and control technologies.

Our specialist expertise and unrivalled experience is relied upon in heavy industries throughout the world to ensure the highest levels of safety and performance.