Protection classes in electrical engineering
Protection class
In electrical engineering, protection classes serve to categorize and label electrical devices to indicate the safety measures in place to protect against electric shocks. For electrical devices, the protection classes indicate the hazard level involved if a person touches the device.

Protective insulation
SELV Safety Extra Low Voltage
PELV Protective Extra Low Voltage

Patrick Targonski
Product Manager at autosen
Products with differing protection classes
