Engraved lamacoid · 6 designs
High voltage signs, engraved
DANGER, WARNING or CAUTION, with the actual voltage engraved on the plate. For substations, transformer vaults, switchgear rooms, fenced enclosures and pad-mounts.
High Voltage Signs we engrave
Add any design to your cart as it is, or open it in the sign builder to change the wording, size or colours.
Put the voltage on the sign
"HIGH VOLTAGE" tells people to stay away. "27,600 VOLTS" tells a qualified worker what they are dealing with. We engrave whatever your system is: 347/600 V, 4,160 V, 13.8 kV, 27.6 kV, or anything else. Our high voltage sign guide covers which signal word to use where.
Made for doors, fences and vaults
High voltage signs usually go on the outside of things. Phenolic is rigid, non-conductive and holds up outdoors. We drill mounting holes to suit screws, rivets or tie-wire for chain-link fence. Larger formats are available for gates you need to read from the road.
Read before you order
Guides
Arc flash labels in Canada: what goes on them and why engrave them
Arc flash labels in Canada: what CSA Z462 practice puts on the label, who supplies the study data, and why engraved phenolic beats vinyl in electrical rooms.
Read the guide
Electrical room signs: what goes on the door, and what goes inside
A checklist of electrical room signs: authorized personnel only and keep out signs for the door, keep clear signs, arc flash lamacoids and panel ID inside.
Read the guide
High voltage signs: which signal word, what wording, and where they go
A practical guide to high voltage signs in Canada: when to use DANGER, WARNING or CAUTION, how to state the voltage, where signs go and how to mount them.
Read the guide
FAQ
High Voltage Signs: common questions
What should a high voltage sign say?
At minimum a signal word (usually DANGER) and HIGH VOLTAGE or the actual voltage, plus an instruction such as KEEP OUT or AUTHORIZED PERSONNEL ONLY. Your site standard and the authority having jurisdiction have the final say.
Can you put a specific voltage like 27,600 V on the sign?
Yes. Every sign is engraved to order, so any voltage or wording can go on it.
Do you make high voltage signs for chain-link fences?
Yes. We drill the plate for tie-wire, zip ties or fence hardware and size it to be read from a distance.
Related sign families
Custom · Same-day
Need high voltage signs with your own wording?
Send the wording, size and quantity. We send a proof, engrave it, and most orders are ready the same day.