Siemens SIMATIC ET 200PA SMART Operating Instructions Manual page 217

Ambient temperature of the device
The temperature of the device housing may be higher than 70 °C if the device is operated at
an ambient temperature of more than 50 °C. The device must therefore be installed so that it
is only accessible to service technicians or users who are aware of the reason for the restricted
access and the necessary safety measures at an ambient temperature of over 50 °C.
Safety extra-low voltage
The device is designed for operation with safety extra-low voltage (SELV) from a limited power
source (LPS).
Power supplies connected to the power supply terminals must comply with the following:
● SELV/LPS (current source with limited power), according to standards IEC 60950-1 /
● Power supply for the NEC Class 2 device as described in the National Electrical Code (r)
If the device is connected to a redundant power supply (two separate power sources), both
must meet these requirements.
NOTICE
Removal and replacement
If you replace components, compliance with Class I, DIV 2 can become invalid.
Replacing components may affect the usability of the device.
NOTICE
Risk of injury
Read the manual before use to avoid injury.
ET 200PA SMART
Operating Instructions, 06/2019, A5E34192013-AB
10.9 Approvals for the analog input module 6ES7650-8AE60-xAA0
WARNING
WARNING
UL 60950-1 / EN 60950-1 / VDE 0805-1
or
(ANSI / NFPA 70).
ET 200PA SMART I/O modules
217