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