Eaton Cutler-Hammer SPB - SECTION 5: OPERATION; 5.1 General; 5.2 Automatic Transfer Switch

I.B. ATS-CP01
Page 7
Effective 5/98
3.2.2 LOAD
The load side contacts of each switching device are
joined with a bus bar assembly to form a common load
terminal location (Figure 3-4).
3.2.3 TRANSFER MECHANISM
The transfer switch uses Cutler-Hammer SPB Type insu-
lated case circuit breakers and insulated case switches
with a stored-energy mechanism. An electrical operator
automatically recharges the mechanism after the switch-
ing device has been closed. An indicator on the switch
shows whether it is in the OPEN or CLOSED position and
the status of the stored-energy mechanism. (Figure 3-2).
Figure 3-3 Insulated Case Circuit Breaker
Figure 3-4 Side View and Rear View of Power Panel (terminal connections for SPB 800-1200 AMP, see Figure 4-2)
Normal
Connections
Load
Connections
Emergency
Connections