What are Oil Circuit Breaker Contacts?

Oil circuit breaker contacts are the electrical switching components that are used in oil-filled circuit breakers. These contacts are responsible for interrupting the flow of electrical current in the event of an overload or short circuit in the power system.

Oil circuit breaker contacts are typically made from a combination of copper and tungsten, which provides high conductivity and resistance to arcing. The contacts are designed to make and break the electrical circuit quickly and reliably, while minimizing the risk of damage or failure due to the high currents and voltages involved.

Oil circuit breaker contacts are immersed in oil to provide insulation and cooling, as well as to extinguish any arcing that may occur during switching. The oil also helps to prolong the life of the contacts by reducing wear and tear and preventing oxidation.

During the normal operating conditions, the contact of the oil circuit breaker (OCB) is closed and carry the current. When the fault occurs in the system, the contacts of the breaker move apart, and an arc is struck between the contacts.

Overall, OCB contacts are a critical component of high-voltage power systems, ensuring that equipment is protected against overloads and short circuits, and helping to maintain the safety and reliability of the power grid.

Alcomet stock a wide range of back engineered and pattern compatible OCB Contacts suitable for use with manufacturers such as  Brush, Crompton Parkinson, GEC, AEI, South Wales Switchgear and many others. Our wide range of OCB Contacts ensure you have the parts you need when undertaking routine maintenance or repairs.

If you require individual components or entire sets simply contact our team on 01384 404488 or email sales@alcomet.net.