Profile: R S E Sierra Switchgear Transformers manufactures electrical distribution and control equipment. Our products include panelboards, service equipment & distribution switchboards, motor control centers, H.V. metal-clad & metal-enclosed switchgear, generator control boards, high I.C. switchboards, control panels/consoles, unit substations and all types of outdoor & indoor walk-in switchgear. Distribution switchboards are designed for 400 amp to 6000 amp supply bus, 3000 amp vertical bus aluminum or copper bus, bracing up to 200,000 ASC. Medium voltage metal enclosed switchgear features air load interrupter switches rated 5kv, 15kv & 27kv class, 200A, 600A & 1200A, and primary switch assemblies for unit substations.