2
15kV Class Padmount VisoVac™
instruction manual
MN024004EN April 2021
Lifting points
Removable lifting angle
Figure 3 . Lifting point example #3 (doors not shown)
Application and description
The medium-voltage Padmount VisoVac from Eaton delivers
economical, reliable, and flexible solutions for distribution
load switching applications.
Eaton’s Padmount VisoVac is a three-phase, load and high-
fault interrupter. Depending on the design, it is suitable
for both indoor and outdoor application. Features like
visible isolation and visible grounding may be included.
The electrical insulation medium is air (no SF6 gas or oil is
used). The vacuum interrupting mechanism can be remotely
operated from a safe distance with a two-button pendant or
remote operation system.
The VisoVac enclosure comes standard with powder-coated
mild steel construction. The enclosure is also available
in stainless steel construction. The Padmount VisoVac
switchgear is specifically designed with a higher interrupting
rating and higher operations.
CAUTION
Before energizing the VisoVac assembly, ensure that:
1 . The VisoVac assembly is secured on a true and level
surface .
2 . All fastening hardware is in place and tightened .
3 . All conductor connections are torqued to the correct
value .
Ratings and specifications
Table 1 . General Specifications
Feature
25 kA
40 kA
Rated Maximum Voltage, 50/60 Hz
Maximum Design Voltage, kV
1
15.5/17.5
15.5/17.5
Impulse Withstand Voltage
Line to ground (kV BIL)
95
95
Open Contact (kV BIL)
95
95
Withstand Voltage, 60 Hz
1 min withstand, AC kV
35
35
5 min withstand, DC kV
53
53
Continuous Current, 50/60 Hz (A)
600/900
600/900
Load Break Current, 50/60 Hz (A)
600/900
600/900
Momentary Withstand (asym pk.)
65
104
1s sym withstand rating, kA
25
40
Sym interrupting rating, kA
25
40
Fault Close (asym pk.)
65
104
5s withstand in ground position, kA
15
15
0.2 withstand in ground position, kA
45
45
Mechanical breaker operations
10,000
10,000
1. Switchgear applied at 5 kV may contain 5 kV Class rated equipment depending on the
application, consult factory for details.
