Technical specifications
8.2 General technical specifications
SIMATIC IPC PX-39A PRO
Operating Instructions, 11/2022, A5E51699950-AA
89
Protection class I to IEC 61140
Device is designed for environments with pollution degree 2
Device is designed for connection to supply with overvoltage category II (transient
overvoltages up to 2500 V)
• IEC 61010-2-201
• IEC 61010-2-201
• EN IEC 61010-2-201
• UL 61010-2-201
• CSA C22.2 No 61010-2-201
The device may only be connected to a 24 V DC power supply which meets the require-
ments of a safe extra
-low voltage (SELV/PELV) in accordance with the standard
-2-201. The power supply must meet the Limited Energy require-
ment according to IEC/UL/EN/DIN
-EN 61010-2-201 (see section"Connecting the 24 VDC
(Page 55)").
If the device is installed in an enclosure that complies with section 9.3.2. c) of
IEC/UL/EN/DIN
-EN 61010-1 und IEC/UL/EN/DIN-EN 61010-2-201, it can be supplied from a
"Higher Limited Energy" source. The device is then classified as "OPEN EQUIPMENT".