{"product_id":"morningstar-relay-morningstar-rd-1-4-channel-relay-driver-for-4boats","title":"Morningstar Relay Morningstar RD-1 4‑Channel Relay Driver for | 4Boats","description":"\u003cp\u003eProgrammable 4‑channel Morningstar Relay RD‑1 logic relay driver for voltage, temperature and parameter control in off‑grid and hybrid systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFour independent programmable channels (each a 750 mA switch) that can operate separately or be combined with AND\/OR logic; channels can also act as sensors to measure voltage or other parameters.\u003c\/li\u003e\n\u003cli\u003eEvents that can trigger a response include: battery voltage or another voltage parameter reaching a high or low voltage threshold; connected Morningstar products (e.g., TriStar) generating an alarm or fault; device temperature rising or falling to set levels; or another TriStar\/external sensor parameter reaching a defined threshold.\u003c\/li\u003e\n\u003cli\u003eTypical threshold control modes monitor a parameter — for example the battery voltage level (or a voltage level coming from another source) — and trigger actions such as Run, Pre‑crank (Pre‑Heat), Crank (Momentary Run), Load, Stop, etc.\u003c\/li\u003e\n\u003cli\u003ePractical example: monitor battery voltage and, when the battery is full, send excess solar charge to a dump load or trigger generator stop.\u003c\/li\u003e\n\u003cli\u003eElectrical specifications: Number of channels: 4. Nominal system voltage: 12 V \/ 24 V \/ 36 V \/ 48 V. Operating voltage: 8–68 V. Maximum channel current: 750 mA. Self‑consumption: \u0026lt; 20 mA. Transient surge protection: 1500 W per channel.\u003c\/li\u003e\n\u003cli\u003eSensors, ports and temperature ranges: Temperature sensor range: -40 °C to +85 °C (-40 °F to +185 °F). Operating temperature: -40 °C to +45 °C (-40 °F to +113 °F). Storage temperature: -55 °C to +85 °C (-67 °F to +185 °F). Communication ports (opto‑isolated): RJ‑11 meter‑bus and 9‑pin serial RS‑232.\u003c\/li\u003e\n\u003cli\u003ePhysical and connection details: Terminal size: 2.5 mm². Dimensions: 163 x 81 x 33 mm (6.42 x 3.19 x 1.30 in). Weight: 0.20 kg (0.44 lb).\u003c\/li\u003e\n\u003cli\u003eWarranty and documentation: This product is covered by a 5‑year warranty. Instruction manual and product datasheet are available to download; Morningstar MSView software is also available for download.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible with Morningstar TriStar controllers and other external sensors; recommended for controlled installation with correct earthing and surge protection. Download manuals and MSView before commissioning.\u003c\/p\u003e","brand":"4Boats","offers":[{"title":"Default Title","offer_id":55841860780412,"sku":"RD-1","price":41000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/4188\/1512\/files\/morningstar-relay-driver-rd-1-for-multi-channel-voltage-and-parameter-control-functions-4boats.jpg?v=1759864124","url":"https:\/\/www.lj-automotive.shop\/en-jp\/products\/morningstar-relay-morningstar-rd-1-4-channel-relay-driver-for-4boats","provider":"LJ Automotive","version":"1.0","type":"link"}