Do Not Turn Off Sign | Prohibition Safety Sign

Description

This sign warns personnel not to operate or isolate a switch, preventing accidental shutdown of critical systems that could cause data loss, equipment damage, or safety failures.

Also commonly referred to as a Do Not Switch Off sign.

Product at a Glance
Product detail: Do Not Turn Off
Sign type: Prohibition Sign safety sign
Colour: Red and white
Orientation: Portrait
Materials: Aluminium Composite, Corriboard (Correx), Self-Adhesive Vinyl
Sizes: 100mm x 150mm, 200mm x 300mm, 400mm x 600mm, 600mm x 900mm
Suitable locations: server rooms and data centres, critical care medical equipment areas, industrial process control panels, building management and HVAC plant rooms
Delivery: Nationwide Ireland delivery
SKU: VGAP031

Where Should a Do Not Turn Off Sign Be Used?
server rooms and data centres, critical care medical equipment areas, industrial process control panels, building management and HVAC plant rooms

Which Material Should I Choose?
Aluminium Composite: Best for permanent indoor or outdoor signage and locations requiring a rigid, durable sign.
Correx: A lightweight, economical option for temporary or shorter-term signage.
Self-Adhesive Vinyl: Best for application directly to smooth, clean surfaces such as doors, panels and equipment housings.

Why this sign: It should be posted directly on or beside switches, isolators, or control panels that must remain energised during live operations or maintenance by others. The sign addresses the risk of an unintended power cut to equipment whose sudden loss could endanger personnel, corrupt processes, or cause costly system failures.

Compliance note: In Ireland, employers must provide appropriate safety signage where hazards cannot be avoided or adequately reduced by other measures, based on the workplace risk assessment, under the Safety, Health and Welfare at Work (General Application) Regulations 2007. This sign is suitable for use as part of a workplace safety-signage system where identified by that risk assessment.

Frequently Asked Questions

What does a Do Not Turn Off sign mean?
A Do Not Turn Off sign instructs personnel that the associated switch, isolator, or power supply must not be operated or de-energised, typically because the connected equipment is in active use or its shutdown could pose a safety or operational hazard.

Where should a Do Not Turn Off sign be displayed?
Place the sign at or near server rooms and data centres, critical care medical equipment areas, or wherever the relevant action is required.

Is a Do Not Turn Off sign a prohibition sign safety sign?
Yes. It uses the red and white prohibition sign-format design. In Ireland, employers must provide appropriate safety signage where hazards cannot be avoided or adequately reduced by other measures, based on the workplace risk assessment.

What is the difference between “Do Not Turn Off” and “Do Not Switch Off”?
They communicate the same instruction. “Do Not Switch Off” is also commonly used for this type of sign.

Which material should I choose?
See the material guide above — Aluminium Composite for permanent/outdoor use, Correx for temporary signage, and Self-Adhesive Vinyl for direct application to smooth surfaces.

Can this sign be used outdoors?
Aluminium Composite and Self-Adhesive Vinyl are suitable for outdoor use. Correx is best suited to indoor or short-term outdoor use, as extended exposure to the elements can affect its lifespan.

What sizes are available?
Available in 100mm x 150mm, 200mm x 300mm, 400mm x 600mm, 600mm x 900mm.