Isolate Main Supply Electrical Sign
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Isolate Main Supply Electrical Sign

Our Isolate main supply electrical warning sign informs people of electrical hazards around the premises.

  • Conforms to EN ISO 70 10, where applicable.
  • Signs are available in a range of sizes and materials.
  • Provides a warning sign to a potential hazard.
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    • 150mm x 200mm
    • Rigid Plastic (1mm)
    • Self Adhesive Vinyl

    £2.19 VAT excluded

    £2.19 VAT excluded

    WAE.21W-SA
    1mm Rigid Plastic Self Adhesive Vinyl
    • Our most popular choice for safety signs
    • Can be used indoors or outdoors
    • Can be drilled or stuck onto a wide range of materials
    • UV and weather resistant
    • Gloss white finish with an adhesive backing
    • Mainly for indoor use, but can be used for outdoors
    • Easy to apply
    • For best results, it must be applied to clean, dry and smooth surfaces
    4mm Correx® 3mm Aluminium Composite
    • Fluted corrugated board
    • Most used in for sale signs
    • Recyclable and lightweight
    • Ideal for temporary signs
    • Aluminium white face with resin core
    • Internal or external use
    • Ideal for large boards up 2400mmx 1200mm
    • Used for permanent signs
    Photoluminescent Self Adhesive Class C Photoluminescent Rigid Grade C
    • Self charges using ambient light
    • Available in the higher performance PSPA rated "Class C" classification for a longer glow
    • Easy to apply to a smooth, clean surface
    • Ideal for indoor use
    • 1.3mm thick photoluminescent rigid plastic
    • Exceeds PSPA Class C classifications. Glows 3x brighter than B
    • Can be drilled or apply no nails adhesive
    • Used for fire safety signs
    Brushed Aluminium Brushed Aluminium Self Adhesive
    • Made from 3mm aluminium composite board with a brushed aluminium effect
    • The brushed aluminium effect gives the sign a contemporary smart finish
    • Ideal for indoor or outdoor use
    • Brushed aluminium effect
    • Self Adhesive backing
    • Easy to apply
    • Appy to a smooth, clean surface
    • Ideal for indoor use
    2mm Rigid Plastic Foam
    • Can be used indoors or outdoors
    • Can be drilled or stuck onto a wide range of materials
    • UV and weather resistant
    • Available in 3mm or 5mm thickness
    • Often referred to as foamex
    • Durable and lightweight
    • Ideal for internal signs

    Do you buy signs in bulk or on a regular basis? We offer the best safety sign reseller package in the industry.

    Please click here to find out more information

    To help you sell safety signs, we have a reseller digital catalogue. To view the catalogue please click on the link digital catalogue. The catalogue is available with no prices or with retail prices and can be rebranded with your details.

    We can print any sign you need up to 2400mmx 1200mm on most flat materials or if you have a large order. Please fill in the form below with your enquiry details. Alternatively you can email us at support@rainbowsafety.co.uk or call 01902 590 50 50



    Reviews

    Grade 
    Lyla

    he sign does the job: clear message, good quality build, and easy to install — we used screws and it stuck to our electrical cabinet door just fine. That said, on a larger site or a busy workshop the standard size might get lost among other notices or equipment. For a small workshop or domestic install it’s fine; for larger facilities I’d consider a bigger version to improve visibility.

    Grade 
    James S

    We installed this “Isolate Main Supply” sign at the main electrical panel in our workshop near Wellington, and it instantly raised awareness. The wording and hazard symbol are bold and unmistakable, so everyone knows to shut off power before opening the enclosure. The rigid‑plastic version we got feels sturdy and weather resistant — even when exposed to damp conditions or outdoor dust, it remains firmly fixed. A small investment for real peace of mind and better site safety compliance.

    Grade 
    Hannah F

    On our rental‑property site in Christchurch, we used this sign to mark the main supply isolation point before maintenance. It’s simple but effective — easy to read, professional layout, and complies with standard safety signage requirements. Attachment was straightforward (we drilled it onto the distribution board), and it has held up well without fading or loosening after a few weeks. Good safety practice — well worth having on site.

    Grade 
    Millie

    The sign is clear, the hazard symbol works well, and the instruction to isolate the main supply before opening is direct and useful. We placed ours on a metal distribution board — it adhered well and was clearly visible. My only small complaint: if you mount it on rough or uneven surfaces (like concrete or textured walls) the adhesive version may struggle to stay fixed; in that case a drilled/mounted sign is better. Still, good quality and helpful for safety compliance.

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