Dielectric Strength - Beckhoff EL3681 Documentation

5.4.7

Dielectric strength

A distinction should be made between:
• Dielectric strength (destruction limit): Exceedance can result in irreversible changes to the electronics
◦ Against a specified reference ground
◦ Differential
• Recommended operating voltage range: If the range is exceeded, it can no longer be assumed that the
system operates as specified
◦ Against a specified reference ground
◦ Differential
Fig. 143: Recommended operating voltage range
The device documentation may contain particular specifications and timings, taking into account:
• Self-heating
• Rated voltage
• Insulating strength
• Edge steepness of the applied voltage or holding periods
• Normative environment (e.g. PELV)
EL3681 Version: 3.0
Commissioning
135