{"product_id":"morningstar-rd-1","title":"Morningstar RD-1 Programmable 4-Channel Relay Driver","description":"\u003cp\u003eThe Morningstar RD-1 is a fully programmable 4-channel logic controller engineered for advanced voltage control, fault\/alarm signaling, load control, and generator auto-start in off-grid solar and industrial power systems. Operating across 12V to 48V DC nominal systems, the RD-1 can function as a standalone unit reading battery voltage or integrate directly with Morningstar TriStar controllers via MeterBus or RS-232 MODBUS communications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMPN:\u003c\/b\u003e RD-1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSystem Voltage:\u003c\/b\u003e 12V \/ 24V \/ 36V \/ 48V DC nominal (8V to 68V DC operating range)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOutputs:\u003c\/b\u003e 4 independent programmable sink channel outputs (750 mA max per channel)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSelf-Consumption:\u003c\/b\u003e \u0026lt; 20 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eControl Functions:\u003c\/b\u003e Generator auto-start (1, 2, or 3-wire), staged low-voltage disconnect (LVD), temperature-controlled cooling\/heating actuation, and MODBUS alarm contacts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCommunication Ports:\u003c\/b\u003e (2) Opto-isolated RJ-11 MeterBus ports \u0026amp; (1) 9-pin RS-232 serial port\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMounting:\u003c\/b\u003e Integrated attachment for standard 35mm DIN rail or flat panel surface mounting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOperating Temperature Range:\u003c\/b\u003e -40°C to +45°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eProgramming Software:\u003c\/b\u003e Fully configurable via PC using Morningstar MSView software\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCertifications \u0026amp; Warranty:\u003c\/b\u003e CE, RoHS compliant; Conformal-coated PCB; 5-Year Limited\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Morningstar","offers":[{"title":"Default Title","offer_id":42670650228832,"sku":"RD-1","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1662\/3200\/files\/Relay-Driver-Morningstar-RD-1.webp?v=1787336018","url":"https:\/\/hmicovers.com\/products\/morningstar-rd-1","provider":"VIZOR","version":"1.0","type":"link"}