OPERATION Page 23
Fig. 30 125 VDC Control Circuit Schematic for MU Type Circuit Breaker
Fig. 31 125 VDC Control Circuit Schematic for ML Type Circuit Breaker
a3 a2 a1 b3 b2 b1 a6 b5a4a5 b6 b4
TCUV
C4 K 1514 131211 161514131211
C04 N2
25 24 23 22 21 26 2425 2223 21
C04C4N2K
Terminal Layout
(As Viewed From Front of Circuit Breaker)
OFF
SUPPLY
+
-
RL GL
120 VAC
SUPPLY
Optional Auxiliary Contacts
(Connect Wires Directly To
Auxiliary Switch Terminals)
Circuit Breaker Components
Shown Inside Box
SP
REC
M
LS2
LS3 LS3
X-b
R1 X-a
X-a
X-a
H
ON
PR3
D
R2
-b
X
R3
-a
-b
C
R4
LS1
NT3
HPR3 NT3
Components Inside Dashed Box Located
On Control Circuit Board
125 VDC
a3 a2 a1 b2 b1 b6 a5b4b5 a6 a4
TCUV
C4 K A2A1 B2B1 161514131211
C04 N2
A02 A01 B02 B01 26 2425 2223 21
C04C4N2K
Terminal Layout
(As Viewed From Front of Circuit Breaker)
OFF
SUPPLY
+
-
RL GL
120 VAC
SUPPLY
Optional Auxiliary Contacts
(Connect Wires Directly To
Auxiliary Switch Terminals)
Circuit Breaker Components
Shown Inside Box
SP
REC
M
LS2
LS3 LS3
X-b
R1
X-a
X-a
X-a
H
ON
PR3
D
R2
Y-b
X Y
R3
Y-a
Y-b
C
R4
LS1
NT3
HPR3 NT3
Components Inside Dashed Box Located
On Control Circuit Board
125 VDC
A1
A2 B1
B2
A01
A02 B01
B02
