SELV stands for Separated Extra Low Voltage or Safety Extra Low Voltage.
It’s a crucial safety standard in electrical systems, particularly relevant for LED lighting. It’s particularly important in wet areas or where direct human contact is possible, as it significantly reduces shock risk.
SELV products offer safety features:
Practical installation benefits also play a role:
Cost considerations actually favor SELV designs. While the components might initially cost more, the simpler installation requirements often make the overall system more economical.
SELV compliance is mandatory for certain applications in many jurisdictions, particularly in areas like bathrooms or where lighting is installed at low heights. By designing to SELV standards, manufacturers can sell their products across multiple markets.
Sharing a driver with multiple fixtures is restrictive as their combined in series wattage cannot exceed the 50V max voltage. Typically a 600lm dedicated LED fixture is around 35V, meaning 2 qty would take it too high at 70V – resticting the use of sharing a driver.
For more details on a SELV circuit watch this quick video:
Explaining what SELV is – the Safety Extra Low Voltage safety standard particularly for LED lighting, reviewing benefits, restrictions & key characteristics.
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