3.3 Storage
For prolonged storage, indoor storage is recommended. If stored outdoors, the cabinet heaters
must be energized to maintain the warranty. The mechanism and control compartment is
equipped with heaters to reduce condensation.
4.0 GENERAL DESCRIPTION
4.1 High-Voltage Assembly
The high-voltage section of the R-MAG consists of three individual phase assemblies mounted
on insulating standoffs. Each phase of the R-MAG consists of a single vacuum interrupter, flexi-
ble shunt and operating rod.
4.2 Housing
The doors of the breaker housing are removable and retained by hinge pins. The position indica-
tor is visible through the front door. The breaker nameplate showing rating information, serial
number and shop order number is mounted on the right-hand side of the housing.
4.3 Phase Assembly
Figure 3 shows the details of the phase assembly. The back bus work is attached directly to the
fixed contact stud on the back end of the vacuum interrupter. The current transfer assembly
housing is fastened to the opposite end of the vacuum interrupter. In the current transfer assem-
bly, a contact block/flexible shunt transfers current from the moving contact of the vacuum inter-
rupter directly through the bus to the bushing.
Figure 2. Lifting Detail
Caution - Exercise care during lifting to avoid damage to the
bushings. Breaker has high center of gravity.
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