Blue Sea 4217 Square Format Label Set - 120

The Blue Sea 4217 Square Format Label Set delivers 120 pre-printed DC circuit labels designed for marine electrical panel organization. Built from reinforced, weatherproof material that withstands saltwater spray, UV exposure, and the demanding marine environment, these labels ensure your boat's electrical systems remain clearly identified through years of operation. Whether you're managing a battery bank, powering DC loads, or troubleshooting underway, legible circuit identification is essential for safety and reliability.

The square format design integrates seamlessly with Blue Sea Systems' WeatherDeck Waterproof Panels, Battery Management Panels, and 360 Panel System architecture—the three most trusted modular electrical panel platforms in recreational and professional boating. The reinforced construction resists peeling, fading, and delamination in high-moisture conditions where standard adhesive labels fail. With 120 common DC labels included, this set covers most single-engine to twin-engine installations, reducing the need for multiple purchases across different boats or retrofit projects.

This label set is essential for anyone upgrading or documenting their marine electrical infrastructure. Weekend cruisers benefit from quick circuit identification during troubleshooting, while serious offshore anglers and liveaboard sailors rely on weatherproof labeling to maintain operational clarity during long passages and harsh conditions. Compact and lightweight at 0.1 lbs, the label set stores easily in an electrical locker or toolbox until installation time.

Blue Sea Systems is the industry standard for marine electrical safety and distribution. Their labeling products ensure that crew members, service technicians, and future boat owners can confidently identify every circuit without guessing—a critical safety practice aboard any vessel.