Rockwell Automation 1606-XLP15A Power Supply Reference Manual - Manual (Page 18)

All parameters are specified at 5V, 3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless noted otherwise.
18 Rockwell Automation Publication 1606-RM019A-EN-P — March 2014
Bulletin 1606 Switched Mode Power Supplies
20.3. External Input Protection
The unit is tested and approved for branch circuits up to 20A. An external protection is only required, if the supplying
branch has an ampacity greater than this. Check also local codes and local requirements. In some countries local
regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of
the circuit breaker. A minimum value of 6A B- or 3A C-Characteristic breaker should be used.
20.4. Parallel Use to Increase Output Power
1606-XLP15A power supplies can be paralleled to increase the output power.
This power supply does not include the capacity to balance the load current
between the power supplies. Usually the power supply with the higher
adjusted output voltage draws current until it goes into current limitation. This
causes no harm to the power supply as long as the ambient temperature stays
below 45°C. The 1606-XLP15A can also be paralleled with other XLP power supplies
with 5V output voltage. The output voltages of all power supplies must be
adjusted to the same value (±100mV).
A fuse or diode on the output of each unit is required only if you connect more than three units in parallel. If you use
a fuse or circuit breaker, choose one with approximately 150% of the rated output current of one power supply.
Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other. Do not use power supplies in parallel in mounting orientations other than the standard
mounting orientation (input terminals on the bottom and output terminals on top of the unit). Please note that leakage
current, EMI, inrush current and harmonics will increase when using multiple power supplies.
Unit A
AC
DC
Unit B
AC
DC
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Load
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