Electrical Diagrams - A.O. Smith DRE 52 Installation And User Instructions Manual

2.1.4 Electrical Diagrams

The electrical circuit diagrams of the
various versions are given on the
next pages. The regulating and safety
sections are the same for all versions.
In principle the only difference is the
number of elements. An overview is
given in the table below.
Diagram A
Electrical diagram for 3
phase
connection with 3 elements
Area of application:
DRE 52-9, DRE 52-18 DRE
52-36 DRE 80-54
Feed:
380-415 V AC 3F 50-60 Hz
Diagram B
Electrical diagram for 3
phase
connection with 6 elements
Area of application:
DRE 80-9, DRE 80-18 DRE
80-36 DRE 120-54
Feed:
380-415 V AC 3F 50-60 Hz
Diagram C
Electrical diagram for 3
phase connection
with nine elements
Area of application:
DRE 120-9 DRE 120-18
DRE 120-36
Feed:
380-415 V AC 3F 50-60 Hz
13