3. Installation
3.4 Preparing the device for operation
Before connecting the power supply
CAUTION
24 VDC power supply for integrated AC-to-DC converter.
The voltage being applied must meet the requirements for safety
extra-low voltages (SELV) set forth in IEC 60950 and the requirements
for protected extra-low voltages (PELV) set forth in ICE/UL 61010-2-
201.
Pay attention to the polarity.
NOTICE
Arrange for an electrician to install the Plug connector MSTB 2.5/3-
ST-5.08 and connect the power supply.
The XH-303 Web Panel has an internal fuse and protection against polarity reversal.
The power supply for the XH-303 Web Panel is not galvanically isolated.
The XH-303 Web Panel requires a rated operating voltage of 24 V DC from an AC-to-
DC converter with safe isolation (SELV/PELV).
Power Supply
Rated operating voltage
+ 24 VDC SELV (safety extra low voltage)
Permissible Voltage range
Effective: 19.2-30.0 V DC (rated operating voltage -20%/+25%)
Absolute with ripple: 18.0-31.2 V DC
Battery powered: 18.0-31.2 V DC (rated operating voltage -25%/+30%); 35 V
DC for a duration of < 100 ms
Voltage dips
Ability to accommodate brief voltage dips
≦ 10 ms from rated operating voltage (24 V DC), ≦ 5 ms from undervoltage
(19.2 V DC)
Power consumption
XH-303-70-A10-A00-2B,
max. 14.4 W
Power consumption at 24 V DC: 11.9 W for basic 2.5 W for USB
module
XH-303-10-A10-A00-2B,
max. 15.4 W
Power consumption at 24 V DC: 12.5 W for basic 2.5 W for USB
module
XH-303-15-A10-A00-2B
max. 19.2 W
Power consumption at 24 V DC: 16.7 W basic 2.5 W USB module
Fuse
Yes (fuse not accessible)
Potential isolation
No
Electrical current
7.0" display
10.1" display
15.6" display
Ie
≦ 0.6 A 24 V
DC
≦0.64 A 24 V
DC
≦ 0.8 A 24 V
DC
I
TH
< 1.0 A²s
< 1.0 A²s
< 1.0 A²s
38
XH-303
09/22 MN048029EN Eaton.com
