What Does the Indoor Use Only Symbol Mean?

The house symbol indicates that equipment is designed for indoor use and should not be exposed to outdoor environmental conditions such as rain or excessive moisture.

It is commonly found on power supplies, adapters, lighting equipment and other electrical products intended only for indoor environments.

When Is the Indoor Use Only Symbol Used?

The symbol can be used when the safe use of electrical equipment is restricted to indoor locations. Whether the marking is required depends on the product, its design and the applicable product-specific safety requirements and standards.

The symbol should not be used as a substitute for assessing the environmental conditions and ingress protection required for the product.

Does Indoor Use Only Mean the Product Is Not Waterproof?

An indoor-use restriction generally means the equipment has not been designed for unrestricted outdoor exposure. However, the house symbol itself does not specify an IP rating or a particular level of protection against water and dust.

Check the product's IP rating and applicable safety requirements separately where protection against water or solid objects is relevant.

You Might Also Need These Symbols

Depending on your electrical product, you may also need the Class II Double Insulated, Class III, AC or DC and WEEE symbols. Products covered by EU or UK conformity legislation may also require a CE or UKCA mark.

Download

Download the indoor use only symbol below in SVG, PNG and PDF format.

indoor-use-only-symbol.pngindoor-use-only-symbol.svgindoor-use-only-symbol.pdf

Use the symbol only where an indoor-use restriction is appropriate for the equipment. Always check the applicable product standard and environmental requirements before applying the marking.

Looking for another electrical marking? View all electronics symbols.