Technical specifications
12.2 Electrical, EMC and climatic requirements
SIWAREX WP241
172 Manual, 04/2014, A5E33713528A
Electrical, EMC and climatic requirements
Electrical protection and safety requirements
Table 12- 12 Requirements: Electrical protection and safety requirements
Safety regulations IEC 61010-1
IEC 61131-2; UL 508
Protection class IEC 61140 Module is operated with protective extra-
low voltage.
The protective conductor connection
serves only a functional earth to
dissipate interference currents
IP degree of protection IP 20 to IEC 60529
• Protection against contact with
standard probe
• Protection against solid bodies with
diameters in excess of 12.5mm
• No special protection against water
Air gaps and creepage
distances
IEC 60664
IEC 61131-2
IEC 61010-1
UL 508
CSA C22.2 No. 145
EN 50156-1
Overvoltage category II
Pollution degree 2
PCB material IIIa
Conductor path distance 0.5 mm
Isolation stability IEC 61131-2
CSA C22.2, No. 142
UL508
Ethernet Port:
1 500 V AC (shield and signals)
Additional electrical circuits:
Test voltage:
500 V AC or 707 V DC
Test duration: ≥ 1 minute
Short circuit current: ≥ 5 mA
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