{"product_id":"victron-cyrix-li-load-230a-relay","title":"Victron Cyrix-Li-load 12\/24V-230A Intelligent Load Relay | CYR010230450","description":"\u003cp\u003eThe Victron Cyrix-Li-load is a microprocessor-controlled load relay built for lithium battery systems running at 12V or 24V. It disconnects non-essential loads when battery voltage drops to a critical level, protecting the battery from deep discharge. Rated at 230A continuous, it handles demanding DC load circuits in marine, vehicle and off-grid installations.\u003c\/p\u003e\u003ch2\u003eKey features of this battery isolator switch\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous current\u003c\/strong\u003e, 230A, suited to high-draw DC load circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem voltage\u003c\/strong\u003e, compatible with 12V and 24V lithium battery systems, with thresholds calibrated for Li chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic disconnect\u003c\/strong\u003e, microprocessor logic monitors battery voltage and opens the load circuit at a programmable low-voltage threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic reconnect\u003c\/strong\u003e, loads reconnect once the battery recovers to a safe voltage, with no manual intervention needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e, 0.3 kg, compact enough for confined installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS integration\u003c\/strong\u003e, works alongside Victron Battery Management Systems and can be controlled via a BMS load disconnect signal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow it protects lithium batteries\u003c\/h2\u003e\u003cp\u003eUnlike a standard battery combiner, the Cyrix-Li-load exists to shed loads rather than join battery banks. When voltage falls below the disconnect threshold, the relay opens and isolates the load circuit. This matters for lithium chemistries, which can be damaged or made unsafe if discharged below their minimum cell voltage.\u003c\/p\u003e\u003cp\u003eAt 230A the unit handles substantial DC loads: inverters, winches, bow thrusters and other high-current consumers. The microprocessor applies hysteresis to avoid rapid cycling at the threshold boundary. Where a Victron BMS is fitted, the relay can also accept a direct load disconnect signal from it, giving the BMS control over load shedding independent of voltage alone.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLoad protection on lithium battery banks in marine and narrowboat systems.\u003c\/li\u003e\n\u003cli\u003eNon-essential load shedding in off-grid cabins and mobile off-grid vehicles.\u003c\/li\u003e\n\u003cli\u003eMotorhome and campervan DC systems with lithium batteries powering high-current appliances.\u003c\/li\u003e\n\u003cli\u003eOverland and expedition vehicles with lithium house battery banks.\u003c\/li\u003e\n\u003cli\u003eAny 12V or 24V lithium installation needing automatic low-voltage load disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e1 x Cyrix-Li-load 12\/24V-230A intelligent load relay\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eInstallation notes\u003c\/h2\u003e\u003cp\u003eFitting should be carried out by a qualified electrician or experienced marine\/vehicle installer. The relay must be wired in series with the load circuit, not the battery charging circuit. Cable sizing should suit the 230A continuous rating, with suitable fusing fitted close to the battery. When integrating with a Victron BMS, refer to the BMS wiring documentation to configure the load disconnect signal correctly.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":52095605113120,"sku":"CYR010230450","price":139.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/8148\/1504\/files\/ledandsolar-cyr010230450-1.webp?v=1785755304","url":"https:\/\/www.ledandsolar.co.uk\/products\/victron-cyrix-li-load-230a-relay","provider":"LED \u0026 Solar","version":"1.0","type":"link"}