Warning Signs

Warning Signs by Caledonia Signs - Trade Only Supplier

BS EN ISO 7010:2020 was developed to provide consistency in safety sign design across the UK and EU. By using ISO 7010 pictograms and symbols, our warning signs provide universal recognition - this means that a warning symbol in the UK will look the same as it would in all European countries.

Warning signs advise viewers of potential hazards within an area. They incorporate a yellow triangle (black border) with a black pictogram inside. Supplementary text must be black on a yellow background and must lead with "Danger, Warning or Caution".

Danger: should be used only for hazards which may cause serious injury or death. Warning: should be used for hazards which could cause mild to severe injury. Caution: should be used for mild hazards only.

We provide a wide range of warning signs & products covering virtually all types of hazards - from asbestos to water


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Warning - Danger of Crushing

Warning - Danger of Crushing - Safety Signs

Display this warning safety sign to advise and forewarn members of staff and the public of potential crushing dangers. "Danger" indicates a high level risk that co..

Caledonia Catalogue Page: 28

Danger - Electric Shock Risk

Danger - Electric Shock Risk - Safety Signs

Display this warning safety sign to advise and forewarn members of staff and the public of potential electrical hazards. "Danger" indicates a high level risk that ..

Caledonia Catalogue Page: 31

Caution - Moving Machinery

Caution - Moving Machinery - Safety Signs

Display this warning safety sign to advise and forewarn members of staff and the public of moving machinery. "Caution" indicates a low level risk which could lead ..

Caledonia Catalogue Page: 28

Danger - 110 Volts

Danger - 110 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Caution - Slippery When Wet

Caution - Slippery When Wet - Safety Signs

Display this warning safety sign to advise and forewarn members of staff and the public of slippery surfaces. "Caution" indicates a low level risk which could lead..

Caledonia Catalogue Page: 35

Danger - 230 Volts

Danger - 230 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - 240 Volts

Danger - 240 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - 400 Volts

Danger - 400 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - 415 Volts

Danger - 415 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - 440 Volts

Danger - 440 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - High Voltage

Danger - High Voltage - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - 6600 Volts

Danger - 6600 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - 11000 Volts

Danger - 11000 Volts - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - High Voltage Keep Away

Danger - High Voltage Keep Away - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - Live Wires Overhead

Danger - Live Wires Overhead - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - Buried Cable

Danger - Buried Cable - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Warning - High Voltage Cables Overhead

Warning - High Voltage Cables Overhead - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Warning - High Voltage Cables Underground

Warning - High Voltage Cables Underground - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Danger - Live Wires

Danger - Live Wires - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Warning - Drivers Beware Overhead Cables

Warning - Drivers Beware Overhead Cables - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Warning - Arc Flash and Shock Hazard Appropriate PPE and Tools Required

Warning - Arc Flash and Shock Hazard Appropriate PPE and Tools Required - Safety Signs

An arc flash is an explosive release of thermal energy including brilliant light, dangerous sound levels and sometimes a blast pressure wave. Numerous workers are ..

Caledonia Catalogue Page: 31

Warning - Arc Flash and Shock Hazard De-energize unit Before Removing Cover

Warning - Arc Flash and Shock Hazard De-energize unit Before Removing Cover - Safety Signs

An arc flash is an explosive release of thermal energy including brilliant light, dangerous sound levels and sometimes a blast pressure wave. Numerous workers are ..

Caledonia Catalogue Page: 31

Warning - Arc Flash and Shock Hazard Do Not Open Without Appropriate PPE

Warning - Arc Flash and Shock Hazard Do Not Open Without Appropriate PPE - Safety Signs

An arc flash is an explosive release of thermal energy including brilliant light, dangerous sound levels and sometimes a blast pressure wave. Numerous workers are ..

Caledonia Catalogue Page: 31

Warning - Arc Flash and Shock Hazard Isolate before Opening Cover

Warning - Arc Flash and Shock Hazard Isolate before Opening Cover - Safety Signs

An arc flash is an explosive release of thermal energy including brilliant light, dangerous sound levels and sometimes a blast pressure wave. Numerous workers are ..

Caledonia Catalogue Page: 31

Warning - Electric Fence

Warning - Electric Fence - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 28

Caution - Men Working On Equipment

Caution - Men Working On Equipment - Safety Signs

Warning signs are displayed to advise and forewarn of electrical hazards. Material Options Explained Below is a more detailed description of the materials this..

Caledonia Catalogue Page: 31

Caution - this Equipment Must be Locked Out Prior to Servicing

Caution - this Equipment Must be Locked Out Prior to Servicing - Safety Signs

Lock Out Tag Out (LOTO) safety signs advise employees of potential dangers. Using the LOTO procedure ensures that dangerous machinery / equipment are properly shut..

Caledonia Catalogue Page: 32

Caution - Locked Out for Safety

Caution - Locked Out for Safety - Safety Signs

Lock Out Tag Out (LOTO) safety signs advise employees of potential dangers. Using the LOTO procedure ensures that dangerous machinery / equipment are properly shut..

Caledonia Catalogue Page: 32

Danger - Equipment Locked Out - Do Not Operate

Danger - Equipment Locked Out - Do Not Operate - Safety Signs

Lock Out Tag Out (LOTO) safety signs advise employees of potential dangers. Using the LOTO procedure ensures that dangerous machinery / equipment are properly shut..

Caledonia Catalogue Page: 32

Caution - Forklift Trucks Operating

Caution - Forklift Trucks Operating - Safety Signs

Warning signs are displayed to advise and forewarn of potential dangers. Material Options Explained Below is a more detailed description of the materials this ..

Caledonia Catalogue Page: 28

Caution - Lockout Devices Must be Removed By Authorised Personnel Only

Caution - Lockout Devices Must be Removed By Authorised Personnel Only - Safety Signs

Lock Out Tag Out (LOTO) safety signs advise employees of potential dangers. Using the LOTO procedure ensures that dangerous machinery / equipment are properly shut..

Caledonia Catalogue Page: 32

Danger - Stop / Look / Listen - Beware of Trucks

Danger - Stop / Look / Listen - Beware of Trucks - Safety Signs

Warning signs are displayed to advise and forewarn of potential dangers. This sign highlights the dangers of Forklift Turcks in the area Material Options Explaine..

Caledonia Catalogue Page: 28

Warning - Moving Traffic Beyond this Point

Warning - Moving Traffic Beyond this Point - Safety Signs

Hazard signs are displayed to advise and forewarn of potential dangers. Material Options Explained Below is a more detailed description of the materials this p..

Caledonia Catalogue Page: 28

Warning - Moving Vehicles

Warning - Moving Vehicles - Safety Signs

Useful safety and information signs for use in garages Material Options Explained Below is a more detailed description of the materials this particular safety ..

Caledonia Catalogue Page: 28

Caution - Forklift Trucks Have Priority of Way in this Area

Caution - Forklift Trucks Have Priority of Way in this Area - Safety Signs

Hazard signs are displayed to advise and forewarn of potential dangers. Material Options Explained Below is a more detailed description of the materials this p..

Caledonia Catalogue Page: 28

Danger - Stop / Look / Listen - Beware of Vehicles

Danger - Stop / Look / Listen - Beware of Vehicles - Safety Signs

Warning signs are displayed to advise and forewarn of potential dangers. This sign highlights the dangers of Forklift Turcks in the area Material Options Explaine..

Caledonia Catalogue Page: 28

Warning - Moving Remote Operator Controlled Machines in this Area

Warning - Moving Remote Operator Controlled Machines in this Area - Safety Signs

The hazards that people are exposed to from robots and machinery have traditionally been controlled by the use of guarding, interlocking and cordoning off areas. H..

Caledonia Catalogue Page: 28

Warning - Remotely Operated Machinery

Warning - Remotely Operated Machinery - Safety Signs

The hazards that people are exposed to from robots and machinery have traditionally been controlled by the use of guarding, interlocking and cordoning off areas. H..

Caledonia Catalogue Page: 28

Warning - Remotely Operated Machinery May Move without Warning

Warning - Remotely Operated Machinery May Move without Warning - Safety Signs

The hazards that people are exposed to from robots and machinery have traditionally been controlled by the use of guarding, interlocking and cordoning off areas. H..

Caledonia Catalogue Page: 28

Caution - Mind the Step

Caution - Mind the Step - Safety Signs

Hazard signs are displayed to advise and forewarn of potential dangers. Material Options Explained Below is a more detailed description of the materials this p..

Caledonia Catalogue Page: 35

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