Sequoia / Tahoe Series User Manual California Instruments
M447352-01 REV-A 43
Figure 3-5 shows the rear panel view of the connector and ground stud for models having an AC input with
3-wire plus ground. Table 3-1 shows the functions and connector pinout, and Table 3-2 the connector type.
A 3-phase, 3-wire input is connected to A, B and C and a safety ground connection must always be
made to the utility earth protection-ground using the rear panel safety-ground stud located adjacent to the
AC input connector.
Figure 3-5: Location of AC Input Block and Chassis Ground Connection
Name Type Range Function
AC INPUT L1 AC Input
- 208 V
LL
10%
- 230 V
LL
10%
- 380 V
LL
10%
- 400 V
LL
10%
- 480 V
LL
10%
3-Phase, Line-Line
Line-1 input from utility AC mains
AC INPUT L2 AC Input
- 208 V
LL
10%
- 230 V
LL
10%
- 380 V
LL
10%
- 400 V
LL
10%
- 480 V
LL
10%
3-Phase, Line-Line
Line-2 input from utility AC mains
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