{"product_id":"itm-vsr-1-automatic-voltage-sensitive-battery-isolator-relay-12-24-v-140-a","title":"ITM – VSR-1 – Automatic Voltage-Sensitive Battery Isolator Relay 12\/24 V, 140 A","description":"\u003cp class=\"p1\"\u003eThe ITM VSR‑1 is a high-current, voltage-sensitive relay designed to automatically isolate and connect dual battery banks in marine, RV, or automotive systems. It engages when charging voltage exceeds a set threshold, ensuring both starter and auxiliary batteries charge simultaneously, and safely disconnects during engine shutdown to prevent starter battery depletion.\u003c\/p\u003e\u003cp class=\"p2\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"p3\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eModel:\u003c\/b\u003e\u003c\/span\u003e VSR‑1 (Voltage Sensitive Relay)\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eVoltage:\u003c\/b\u003e\u003c\/span\u003e Automatically selects 12\/24 V systems\u003c\/p\u003e\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003e• \u003c\/span\u003e\u003cb\u003eContinuous Current Rating:\u003c\/b\u003e\u003cspan class=\"s2\"\u003e ~140 A\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eStandby Power Draw:\u003c\/b\u003e\u003c\/span\u003e Approx. 0.5 mA (operational) \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eActivation Threshold:\u003c\/b\u003e\u003c\/span\u003e Typically around 13.3 V engage \/ drops to ~12.9 V to open \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eLED Indicator:\u003c\/b\u003e\u003c\/span\u003e Confirms relay operation (active\/open)\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eProtection Features:\u003c\/b\u003e\u003c\/span\u003e Built-in spark suppression to prevent contact damage \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eForm Factor:\u003c\/b\u003e\u003c\/span\u003e Compact module, suitable for panel or bulkhead mounting\u003c\/p\u003e\u003cp class=\"p1\"\u003e• \u003cspan class=\"s1\"\u003e\u003cb\u003eAutomatic Charging Relay (ACR):\u003c\/b\u003e\u003c\/span\u003e No ignition feed needed; engages based on voltage only \u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"VOLTWERK Handel","offers":[{"title":"Default Title","offer_id":55873686241654,"sku":"EB-286680154545","price":141.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/4202\/8857\/files\/57_1da641a1-55f7-4f93-8a23-eefce3f0ec00.png?v=1751637572","url":"https:\/\/www.volt-werk.com\/products\/itm-vsr-1-automatic-voltage-sensitive-battery-isolator-relay-12-24-v-140-a","provider":"VOLTWERK Handel","version":"1.0","type":"link"}