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FIXED SWITCH AND BREAKERS (MEB AND MSB)
Eaton's assembly designated MEB (Metal-Enclosed Breaker) consists of a single high draw-out vacuum circuit breaker (Type VCP-W) in a metal-enclosed cabinet. This equipment has been designed for applications demanding low cost protection within an environment where a switch, or switch and fuse combination is not suitable. Eaton's MSB switchgear is an integrated assembly of a visible load-break disconnect switch, bus, fixed mounted vacuum circuit breaker, and control devices, which are integrated electrically and mechanically for circuit protection. As primary protection for single-ended substations, Eaton's MEB & MSB switchgear can eliminate the need for a secondary main breaker. It can also be applied as the primary main device and integrated with fused feeder switches in a lineup of fused MVS switchgear. Two and three breaker automatic transfer schemes using the IQ Transfer microprocessor controller are also available. Our Metal-Enclosed Vacuum Breaker (MEB & MSB) switchgear provides economic and reliable circuit switching and fault protection for medium-voltage circuits of 4.76 kV, 15 kV and 27 kV. MEB is ideal for applications where load interrupter switches should not be applied, such as:
It is also a better engineering alternative than load interrupter switches for applications involving shunt tripping, single-phase protection, capacitor switching, and ground protection. MEB switchgear can also be an economic benefit in single ended substations since it may allow the customer to eliminate the secondary main protection and switching device. |
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