ABB PST Installation And Maintenance Manual page 172

(HIGH VOLTAGE)
Figure 4: Circuit diagram
PSTB370...PSTB1050
172
AC 1006.9 - 5/03
Chapter 12 - Diagrams
12:4 Circuit Inside Delta diagram PSTB370...PSTB1050
1
SEE CHAPTER 3
1
FOR ACROSS THE
LINE (AC3) RATINGS
Terminal 3 is a functional ground, it is not a protective
ground. It shall be connected to the mounting plate.
Low Voltage Products & Systems
ABB Inc. • 888-385-1221 • www.abb-control.com