Each component is designed not to generate sparks or overheat, why:
– Permissions are higher
– Terminals are specific (no gold-release)
– The casing is at least IP54, antistatic, impact resistant material (7 Nm).
Increased safety enclosures are usually made of reinforced polyester or polyamide. Cable connections must be rigorous (stripping and tightening) and the instructions for operating voltages and current must be followed. The temperature class takes into account the hottest point of the unit.