Disconnect Before Repair Sign

Disconnect Before Repair Sign – ISO 7010 Mandatory Symbol MS0025

The Disconnect Before Repair sign is a mandatory action pictogram used at electrical switchboards, machinery isolation points, and equipment maintenance stations aboard ships to instruct crew to disconnect before repair whenever servicing electrical or mechanical equipment. Rendered in the internationally recognised ISO 7010 blue circle with a white photoluminescent pictogram of an isolation switch, this sign gives an unmistakable, language-independent instruction that power must be isolated before any maintenance work begins.

Onboard vessels, maintenance and repair work on electrical panels, motors, pumps, and other machinery carries a significant risk of electric shock or unexpected equipment start-up if the correct isolation procedure is not followed. Crew who fail to disconnect before repair risk serious injury from live electrical contact or moving machinery parts during service. Positioning this sign at switchboards, isolation points, and equipment access panels reinforces this critical lockout requirement before any work begins.

Why Disconnecting Before Repair Matters

Failure to properly isolate equipment before maintenance is a leading cause of serious electrical and mechanical injury incidents aboard ships. Skipping the disconnect before repair step, even briefly, exposes maintenance personnel to live circuits or machinery that could start unexpectedly. A clearly displayed mandatory sign at every relevant isolation point removes reliance on memory alone and gives every crew member and contractor an unmistakable, universally recognised reminder before beginning repair work.

Compliance and Certification

This sign is manufactured to the ISO 7010 international graphical symbol standard, ensuring the pictogram is instantly recognisable to seafarers and shore-based maintenance personnel regardless of nationality or first language. Isolation and lockout signage of this kind supports compliance with the ISM Code’s requirements for documented safe working procedures and permit-to-work systems, and complements the broader shipboard safety regime established under SOLAS Chapter II-2. Fitting compliant, durable signage at every relevant switchboard and equipment isolation point helps demonstrate a proactive safety culture during flag state and port state control inspections.

Installation Recommendations

Mount the Disconnect Before Repair sign at electrical switchboards, machinery isolation points, and equipment access panels throughout the engine room and workshop areas. Fix the sign at eye level using stainless steel screws, rivets, or a suitable marine-grade adhesive so it withstands vibration, humidity, and saltwater exposure. In engine rooms and other high-risk areas, choose the photoluminescent variant so the pictogram remains visible if primary lighting fails, and inspect signage periodically as part of routine safety rounds to confirm it stays legible and securely fixed.

• Manufactured to ISO 7010 mandatory pictogram standard (blue circle, photoluminescent symbol)
• Rigid or self-adhesive 425 x 425mm panel to suit bulkhead or equipment mounting
• UV-stable and saltwater-resistant construction for reliable long-term marine performance
• Photoluminescent charge provides visibility during power loss or low-light conditions
• Multiple fixing options available including screw-fix, rivet, and adhesive backing

Order the Disconnect Before Repair Sign (SKU: MS0025) today to reinforce essential isolation and lockout practice across your vessel’s engine room and maintenance areas.

For related shipboard safety requirements, browse our Hazard Signs and Fire Fighting Signs categories to complete your vessel’s compliant signage package.