{"product_id":"blue-sea-300a-ac-50ma-ac-m2-coil-ac-current-transformer","title":"Blue Sea 300A AC\/50mA AC M2 Coil AC Current Transformer","description":"\u003ch2\u003ePrecision AC Current Sensing for Marine and Off-Grid Electrical Systems\u003c\/h2\u003e\u003cp\u003eManaging high-capacity alternating current in marine vessels, motorhomes, and off-grid power architectures requires reliable, non-intrusive measurement. The \u003cstrong\u003eBlue Sea Systems M2 Coil AC Current Transformer\u003c\/strong\u003e is engineered to safely step down a primary \u003cstrong\u003e300A AC\u003c\/strong\u003e load into a manageable, proportional \u003cstrong\u003e50mA AC signal\u003c\/strong\u003e. This precise transformation ratio allows compatible digital monitoring systems, particularly the Blue Sea Systems M2 OLED Digital Monitor series, to accurately track AC amperage without routing heavy-gauge, high-voltage conductors directly to the display panel.\u003c\/p\u003e\u003cp\u003eBy isolating the primary AC load from the instrumentation circuit, this current transformer significantly reduces the risk of electrical hazards at the helm or control board. It eliminates the voltage drop and heat generation associated with inline resistive shunts, providing a safer and more efficient method for monitoring generators, shore power inlets, and heavy-duty inverter outputs.\u003c\/p\u003e\u003ch3\u003eEngineered for Secure, Vibration-Resistant Installation\u003c\/h3\u003e\u003cp\u003eUnlike standard commercial-grade sensors that can fail in mobile or coastal environments, this Blue Sea Systems current transformer is constructed to withstand the rigours of marine and automotive applications. The unit features a robust black housing with an integrated flanged mounting base, complete with pre-cut slots for secure surface installation inside switchboards, distribution panels, or inverter enclosures.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefined 300A AC to 50mA AC Ratio:\u003c\/strong\u003e Delivers a linear, stepped-down secondary signal tailored for M2 AC ammeters and digital multimeters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Intrusive Central Aperture:\u003c\/strong\u003e The large circular opening easily accommodates heavy-duty primary AC conductor cables without cutting or splicing the main power line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Screw Terminals:\u003c\/strong\u003e Heavy-duty screw-down terminal points ensure vibration-resistant connections for the 50mA secondary signal wires, preventing signal dropout in rough seas or corrugated off-road conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Flanged Base:\u003c\/strong\u003e Allows for rigid bulkhead or panel mounting, keeping the sensor firmly in place around the primary conductor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Technical Labelling:\u003c\/strong\u003e Clearly marked with the transformation ratio and current rating on the housing for straightforward identification during installation and future system maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose a Dedicated M2 Current Transformer?\u003c\/h3\u003e\u003cp\u003eAccurate load management is critical when operating high-output AC appliances from limited energy sources like marine generators or off-grid inverter chargers. Using an improperly matched sensor can lead to skewed amperage readings, resulting in tripped circuit breakers, overloaded generators, or unexpected system shutdowns. This purpose-built current transformer ensures seamless calibration with M2 series monitors, giving system operators the confidence to balance AC loads effectively.\u003c\/p\u003e\u003cp\u003eWhether you are commissioning a new commercial vessel, upgrading a caravan electrical distribution board, or building a custom off-grid cabin power system, this component provides the electrical isolation and measurement accuracy required for professional-grade AC monitoring.\u003c\/p\u003e\u003ch3\u003eUpgrade Your AC Power Monitoring\u003c\/h3\u003e\u003cp\u003eIntegrate the Blue Sea 300A AC\/50mA AC M2 Coil Current Transformer into your electrical distribution panel today for safe, reliable, and accurate AC current tracking across your entire power system.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631414607933,"sku":"BS-1829B","price":74.13,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-300a-50ma-ac-current-transformer-bs-1829b.png?v=1792904691","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-300a-ac-50ma-ac-m2-coil-ac-current-transformer","provider":"Solar 4 RVs","version":"1.0","type":"link"}