Warning - Men At Work - Do Not Switch On - Safety Signs by Caledonia Signs

This multi-message sign provides critical safety communication designed to alert personnel that maintenance, repair, or installation work is being carried out on machinery, electrical equipment, or systems, and that activating the equipment could result in serious injury or damage. Displaying this sign clearly warns operators and visitors not to switch on power, helping prevent accidents caused by unexpected equipment startup.

A primary application is in industrial and manufacturing facilities, where electricians, maintenance staff, or engineers may be working on live machinery, control panels, or electrical circuits. The sign ensures that machines remain de-energized while work is in progress, protecting personnel from electric shock, mechanical injury, or accidental equipment damage.

It is also essential in commercial buildings, laboratories, and construction sites. Placing the sign near electrical panels, motors, pumps, or any equipment undergoing maintenance informs everyone in the area of ongoing work. This promotes safe practices by preventing unauthorised or inadvertent operation of machinery, which could lead to serious workplace accidents.

Additionally, the sign is durable, highly visible, and designed with bright colours and bold text, making it easy to notice even from a distance. Its combination of clarity, visibility, and safety messaging makes the “Warning – Men At Work – Do Not Switch On” sign an essential tool for maintaining workplace safety during maintenance or repair activities.

Materials Explained

Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application.

Rigid Plastic: This lightweight, gloss white PVC is resistant to weather, moisture, chemicals, and general wear and tear, making it suitable for harsh environments. Its smooth, solid surface allows for crisp printing of text and graphics, enhancing readability and visual impact. Businesses who choose Rigid Plastic signs benefit from fewer replacements and minimal maintenance, making it a practical investment for reliable and effective safety signs.

Self-Adhesive Vinyl: Self-adhesive vinyl is easy to apply and it’s budget-friendly. Its adhesive backing allows for easy application to a variety of surfaces such as glass, metal, plastic, and painted walls, which simplifies installation and reduces setup time. Self-adhesive vinyl provides a clean, professional finish that suits many indoor environments including offices, retail, industrial sites, and vehicles. It is more affordable than many other material types and allows for custom shapes, colours, and graphics.