Output isolation
The outputs of the E36150 Series power supplies are isolated from earth ground. Any output terminal may be
grounded, or an external voltage source may be connected between any terminal output and ground. However,
output terminals must be kept within ±240 Vdc of ground. Any one of the terminals can be tied to ground as needed.
An earth ground terminal is provided on the front panel for convenience.
SHOCK HAZARD
. Floating voltages must not exceed 240 Vdc. No output terminal may be more than 240 Vdc
from chassis ground.
The output terminal is designed for DC application. Ensure that transient voltages do not exceed 90 Vpk.
Before making any external connection, ensure the equipment input supply is grounded to MAINS.
The figure below shows an example of floating a power supply to 200 V above ground. The power supply output is
set to 40 V.
Example of negative terminal fl200 V above ground (positive terminal is +240 V above ground)
You can see from this example that you have to take the power supply output voltage into consideration when
ensuring you are not violating the float voltage rating. If you exceed the float voltage rating of the power supply, you
are potentially exceeding the voltage rating of internal parts that could cause the internal parts to fail or break down
and present a shock hazard, so do not violate the float voltage rating!
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Keysight E36150 Series User's Guide
