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3.9.5 Inductive loads
Inductive loads can produce voltage spikes that may be harmful to the power supply. A diode should
be connected across the output. The diode voltage and current rating should be greater than the
power supply maximum output voltage and current rating. Connect the cathode to the positive
output and the anode to the negative output of the power supply. Where positive load transients
such as back EMF from a motor may occur, connect a surge suppressor across the output to
protect the power supply. The breakdown voltage rating of the suppressor must be approximately
10% higher than the maximum output voltage of the power supply.
3.9.6 Making the load connections
6V to 60V Models
Refer to Fig.3-5 for connection of the load wires to the power supply bus-bars and to Fig.3-6 for
mounting the bus-bars shield to the chassis.
Fig. 3-5: Load wires connection, 6V to 60V models.
WARNING
Hazardous voltages exist at the outputs and the load connections when
using a power supply with a rated output greater than 40V.To protect
personnel against accidental contact with hazardous voltages, ensure
that the load and its connections have no accessible live parts.
Ensure that the load wiring insulation rating is greater than or equal to
the maximum output voltage of the power supply.
CAUTION
Ensure that the load wiring mounting hardware does not short the output
terminals. Heavy connecting cables must have some form of strain relief
to prevent loosening the connections or bending the bus-bars.
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