SIRIUS 3RF34 solid-state switching devices
3.13 Circuit diagrams
SIRIUS Innovations
376 System Manual, 01/2011, A8E56203870002-03
Example circuit diagrams
The figures below show the example circuit diagrams for the solid-state contactors and solid-
state reversing contactors
Example circuit diagram for the solid-state contactor for motorized loads
2Q
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6
F1 - 3 Main circuit fuses (solid-state contactor recommended)
F4 Control circuit fuse
K1 3RF34 solid-state contactor for motorized loads
M1 Motor
R1 Varistor 3TX7 462-3L (recommended to maintain "surge" immunity)
S1 "ON" switch
Figure 3-36 Example circuit diagram: Fused motor feeder with solid-state contactor for motorized
loads with DC control circuit