1
2
3
4
5
6
-
+
1
2
3
4
5
6
COM for DI1 and DI2
close control
52b 52a
OPEN COIL
CLOSE COIL
R
CB OPEN
CB CLOSE
CB READY
COM for DI3 and DI4
-V
AUX
+V
AUX
-V
AUX
-V
AUX
relay compartment
circuit breaker compartment
CB
SCM8H / SCM8L
X1
0V-
DI1
DI2
DI3
DI4
0V-
DI1
DI2
DI3
DI4
HS1
HS2
HS3
HS4
HS1
HS2
HS3
HS4
X2
GUID-B1267BF8-65D3-404B-A22B-35BAC79B7F18 V3 EN
Figure 30: Connection diagram for circuit breaker application with trip circuit
supervision (direct tripping - double pole)
Table 18: SCM connection for circuit breaker application
X1
Connector
inputs
Description X2 Connector
outputs
Description
OV- 1 Common
return for for
DI1 and DI2
-
1 AUX. DC
voltage L-
DI1 2 Position
indication for
CB Open
HS1
2 CB OPEN Trip
coil
DI2 3 Position
indication for
CB Close
HS2
3 CB CLOSE
coil
Table continues on next page
Section 5 1MRS757488 H
Installing
52 RIO600
Installation and Commissioning Manual
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