Temperature range and environmental resilience
The 6AG1153-4AA01-7XB0: Power dissipation is 6 W typical, so in a densely packed panel of 12 modules the heat adds up—plan for ventilation or derating above 40 °C using the ambient-pressure altitude curve in the manual.
Backplane current and coordination numbers
The listed I2t of 0.09 A²·s is the thermal stress the module presents to the backplane power supply during inrush. That figure—along with the 4 A peak inrush—helps size the external fuse recommendation of 2.5 A for redundant interface modules. The backplane bus current limit of 1.5 A at 5 V DC must be respected when populating adjacent I/O modules.