Our Isolate main supply electrical warning sign informs people of electrical hazards around the premises.
| 1mm Rigid Plastic | Self Adhesive Vinyl | ||
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| 4mm Correx® | 3mm Aluminium Composite | ||
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| Photoluminescent Self Adhesive Class C | Photoluminescent Rigid Grade C | ||
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| Brushed Aluminium | Brushed Aluminium Self Adhesive | ||
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| 2mm Rigid Plastic | Foam | ||
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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.
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.
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.
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.