Eaton NR - Three-Wire Control; Wiring Diagram

4
Type NR oil switch installation and operation instructions
INSTALLATION AND OPERATION INSTRUCTIONS MN230008EN November 2016
Figure 1. Nuts to loosen or remove
Three-wire control
The basic device for remote control of the Type NR oil
switch is a single-pole, double-throw switch (three-wire
control) supplied by the customer. Any manual switch, time
switch, voltage-, current- or photo-electric controlled switch,
or similar device can be used provided the control circuit is
energized for a minimum of 4.5 seconds for each operation.
A connection diagram for a standard three-wire control is
shown in Figure 2.
NOTE: G=Ground
2=Close
3=Open
MOTOR
0 1 G 2 3 4
Black
Red
AC-White, DC-Black
AC-Black, DC-Red
SEL
SW.
NO
AC-White, DC-Black
AC-Black, DC-Red
Black
Red
MOTOR
SEL
SW.
NO
NC
C
C
NC
Green
Orange
Blue
NO
NC
Aux
SW.
C
A
B C D E
OpenClose
Recaptacle
(ACCY)
KA121NR5
Input
Supply
voltage
0 1 G 2 3 4
Figure 2. Typical connection diagrams
Wiring diagram
Connection diagrams of switch actuators with various
accessories wired for two- and three-wire control are shown
in Figure 3.
NOTE: G=Ground
2=Close
3=Open
MOTOR
0 1 G 2 3 4
Black
Red
AC-White, DC-Black
AC-Black, DC-Red
SEL
SW.
NO
AC-White, DC-Black
AC-Black, DC-Red
Black
Red
MOTOR
SEL
SW.
NO
NC
C
C
NC
Green
Orange
Blue
NO
NC
Aux
SW.
C
A
B C D E
OpenClose
Recaptacle
(ACCY)
KA121NR5
Input
Supply
voltage
0 1 G 2 3 4
Figure 3. Actuator wiring with various accessories
connected