Sequoia / Tahoe Series User Manual California Instruments
M447352-01 REV-A 51
000 225 0.0062 1.40
0000 260 0.0049 1.27
Table 3-6: Wire Resistance and Voltage Drop
CAUTION!
When the unit is working in the DC Mode of operation all the three-phase output return
current will be flowing through the Neutral wire present in TB1B, as a result, use appropriate
wire gauges.
3.7.2 Output Terminal Blocks
The Sequoia/Tahoe Series Models have two output terminal blocks, TB1A and TB1B. The chassis will be
using only one output terminal block when used in single-phase mode of operation, TB1B. The terminal
blocks are located in the lower end on the rear of the unit. The rear panel needs to be removed to access
these terminal blocks.
CAUTION!
REMOVE ALL INPUT POWER TO THE UUT BEFORE REMOVING THE REAR PANEL.
Terminal block TB1B always provides the output neutral connection, regardless of the phase mode (1 or
3-phase output mode).
In single-phase mode, phase A output is provided through A of TB1B.
In three-phase mode, phase A, B, and C outputs are provided through terminals A, B and C of TB1A
respectively.
Connector Terminal Mode Output
TB1A
A
3 Phase Phase A
B
3 Phase Phase B
C
3 Phase Phase C
TB1B
A
1 Phase Phase A
N 1 and 3 Phase Neutral
Table 3-7: Output Terminal connections
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