We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Danger Do Not Switch On Signs
£7.50
In stock
SKU
MM014*
Danger Do Not Switch On multi-message sign for maintenance staff, engineers and site teams controlling machinery, isolators and switch points to reduce unsafe start-up risk.
Danger Do Not Switch On Multi-Message Signs help you stop machinery, isolators and controls being operated while work is underway. Used by maintenance teams, engineers and supervisors, they combine a clear danger warning with a switch prohibition to reduce accidental start-up risks.
Best Places to Fit Danger Do Not Switch On Signs
You should install this sign beside isolators, switchgear, machine controls, electrical cabinets and maintenance access points where somebody may restart equipment by mistake. Place it at eye level, close to the control being restricted, so the warning is seen before the switch is touched.
Viewing Distance Guidance for Switch Isolation Areas
Choose the larger size where the sign must be read across a plant room, workshop or machine bay. Use the smaller option for close-range controls, doors and isolator positions where staff approach within a few metres.
| Size option | Typical viewing distance | Best use |
|---|---|---|
| H 150 x W 300 mm | Up to around 3–5 metres | Close machine controls, isolators and doors |
| H 300 x W 500 mm | Up to around 6–10 metres | Plant rooms, larger machinery and wider work areas |
Safety Improvements You Should Expect After Fitting
Once fitted in the right position, this sign helps you influence behaviour before anyone reaches for a switch. It gives engineers, cleaners, contractors and operators a clear visual stop point during servicing, fault-finding or restricted machine use.
✅ Reduces accidental operation during maintenance
✅ Makes restricted controls easier to identify
✅ Supports clearer handover between work teams
Technical Details for Danger Do Not Switch On Signs
- Sign message: Danger / Do not switch on
- Purpose: warns against operating restricted switches
- Where to use: machinery, isolators and controls
- Sign type: dual-message warning/prohibition
- EN ISO 7010 code: W001 general warning
- EN ISO 7010 code: P031 do not alter switch state
- Conforms to EN ISO 7010 where pictograms apply
- Supports BS 5499 safety sign principles
- Pictogram symbols: warning triangle and switch prohibition
- Materials: rigid plastic, self-adhesive vinyl, removable repositionable vinyl
- Size options: H 150 x W 300 mm, H 300 x W 500 mm
- Background colours: red, white and yellow
- Text colours: white and black
- Symbol colours: red and black
- Shape: rectangle
- Orientation: landscape
- Finish: glossy film surface
- Non-photoluminescent
- Non-reflective
- Supplied as a single sign
- Material thickness: varies by material choice
- Fitting methods: wall, door or machine mounting
- Rigid plastic fixings available separately
- Vinyl options include adhesive backing
Fitting Advice for Safer Switch Restriction Control
❌ Placement mistakes that weaken the warning
❌ Fitting the sign too far from the actual switch or isolator
❌ Placing it behind open doors, stacked stock or machine guards
❌ Mounting it too low where tools or workbenches hide the message
❌ Fitting the sign too far from the actual switch or isolator
❌ Placing it behind open doors, stacked stock or machine guards
❌ Mounting it too low where tools or workbenches hide the message
❌ Situations where this sign is not enough
❌ Using it instead of physical isolation or lockout control
❌ Applying vinyl to dirty, oily or uneven surfaces
❌ Relying on a small sign across a large plant room or workshop
❌ Using it instead of physical isolation or lockout control
❌ Applying vinyl to dirty, oily or uneven surfaces
❌ Relying on a small sign across a large plant room or workshop
✅ Better fitting choices for busy work areas
✅ Position it where the operator naturally looks before switching on
✅ Choose rigid plastic for permanent high-contact machinery locations
✅ Use the larger size where several people approach from different directions
✅ Position it where the operator naturally looks before switching on
✅ Choose rigid plastic for permanent high-contact machinery locations
✅ Use the larger size where several people approach from different directions
Danger Do Not Switch On Multi-Message Signs questions answered
What are Danger Do Not Switch On Multi-Message Signs used for? They warn people not to operate machinery, isolators or switches where doing so could create a start-up, maintenance or equipment safety risk.
Where should I place this sign for the best effect? Fit it as close as practical to the control, switch, isolator or access point being restricted, ideally at normal eye level before anyone reaches the equipment.
Which material should I choose? Use rigid plastic for a permanent wall or machine-mounted sign, self-adhesive vinyl for smooth surfaces, and removable repositionable vinyl where the restriction may change.
Does this sign replace a lockout procedure? No. It supports lockout and isolation controls, but it should not be relied on as the only method of preventing equipment operation.
Why use a multi-message Danger Do Not Switch On sign instead of a single symbol? The combined layout gives you both the hazard warning and the clear switch restriction, helping people understand the risk faster in busy work areas.
Danger Do Not Switch On Sign Features and Practical Benefits
Features
- ✓ Dual warning and prohibition message in one sign
- ✓ W001 warning triangle and P031 switch restriction symbol
- ✓ Available in rigid plastic, adhesive vinyl and repositionable vinyl
- ✓ Landscape layout with high-contrast red, yellow, black and white design
Benefits
- ✓ Helps you stop machinery being restarted during work
- ✓ Makes restricted switch points clearer for staff and contractors
- ✓ Gives maintenance teams a stronger visual control at the hazard point
- ✓ Lets you match the material to doors, walls, machines or temporary tasks
Related machine isolation signs to compare
For a simpler isolation instruction, use landscape do not switch on signs where switches must stay off during maintenance. Useful for plant rooms, machinery bays and electrical controls.
When you need a portrait layout, compare portrait do not switch on prohibition signs for narrower fixing points. Helps you warn staff before equipment is restarted.
For active repair work, add men working do not touch safety signs beside controls that must not be handled. Good for maintenance tasks and temporary engineering work.
If equipment must not be run, choose landscape do not operate signs for clear stop instructions. Suitable for machinery that is unsafe, isolated or awaiting inspection.
For wider machinery safety coverage, browse machinery prohibition signs for factory safety when building a consistent control point system. Helpful for workshops, warehouses and production areas.
Estimated Delivery Day
Current date and time:
Estimated delivery by:
Based on an estimated 3 working day delivery timeframe from today, excluding weekends and bank holidays. Delivery dates are provided as a guide only and may vary depending on the product ordered, stock availability at the time of purchase, production or printing lead times.