Operation On Two Phases; Use In A Tightly Sealed Enclosure - Allen-Bradley 1606-XLE240ERL Reference Manual

Redundancy Power Supply - 24V, 10 A, 240 W, Single-phase Input
Case A
Enclosure Size Rittal Typ IP66 Box PK 9519 100, plastic 110 x1 80 x 165 mm
Input Voltage 230V AC
Load 24V, 8 A; (=80%)
Temperature inside enclosure 45.4 °C (113.72 °F)
Temperature outside enclosure 25.0 °C (77 °F)
Temperature rise 20.4 K
32

Operation on Two Phases

The power supply can also be used on two-phases of a three-phase-system.
Such a phase-to-phase connection is allowed as long as the supplying voltage is
below 240V+10%.
The maximum allowed voltage between a Phase and the PE must be below
300V AC.
Figure 40 - Operation on Two Phases
L3

Use in a Tightly Sealed Enclosure

When the power supply is installed in a tightly sealed enclosure, the
temperature inside the enclosure will be higher than outside. In such
situations, the inside temperature defines the ambient temperature for the
power supply.
The following measurement results can be used as a reference to estimate the
temperature rise inside the enclosure.
The power supply is placed in the middle of the box, no other heat producing
items are inside the box.
Case B
24V, 10 A; (=100%)
49.0 °C (120.2 °F)
25.0 °C (77 °F)
24.0 K
Rockwell Automation Publication 1606-RM110A-EN-P - July 2020
Power Supply
L1
AC
L
N
PE
DC
L2
Case C
Rittal Typ IP66 Box PK 9519 100, plastic, 180 x 180 x 165 mm
24V, 8 A; (=80%)
42.0 °C (107.6 °F)
25.0 °C (77 °F)
17.0 K
Case D
24V, 10 A; (=100%)
44.4 °C (111.92 °F)
25.0 °C (77 °F)
19.4 K