{"title":"Voltage Sensitive","description":null,"products":[{"product_id":"60a-split-charge-voltage-sensitive-relay-12v-camper-van-motorhome-vsr","title":"60A Voltage Sensitive Relay - 12V Split Charge, Camper \u0026 Motorhome VSR","description":"\u003cp\u003e\u003cstrong\u003e60A Voltage Sensitive Relay (VSR)\u003c\/strong\u003e — a high quality 12V voltage sensitive relay designed for split charging dual battery systems in campers, camper vans, motorhomes, caravans and marine applications. This relay automatically connects and disconnects a secondary battery based on system voltage, allowing safe charging of an auxiliary battery without risking discharge of the main starter battery.\u003c\/p\u003e\n\n\u003cp\u003eWhen the charging voltage rises, the relay engages to charge the second battery. When voltage drops, it disconnects automatically, protecting the primary battery at all times. A built-in red LED indicator provides clear operational status.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003cbr\u003e12V DC\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCurrent rating\u003c\/strong\u003e\u003cbr\u003e60A\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngage voltage\u003c\/strong\u003e\u003cbr\u003e13.3V\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDisengage voltage\u003c\/strong\u003e\u003cbr\u003e12.8V\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIndicator\u003c\/strong\u003e\u003cbr\u003eRed LED\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eApproval\u003c\/strong\u003e\u003cbr\u003eCE approved\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility note\u003c\/strong\u003e\u003cbr\u003eNot suitable for vehicles with 'smart' or 'intelligent' alternators (typically Euro 5\/6 and newer, often with regenerative braking) — a DC-DC charger is required for these vehicles instead\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable for\u003c\/strong\u003e\u003cbr\u003eCamper vans and motorhomes, dual battery leisure systems, marine and boat electrics, auxiliary battery installations\u003c\/p\u003e\n\n\u003cp\u003eAlso known as a VSR, split charge relay, or voltage sensing relay.\u003c\/p\u003e","brand":"DH \u0026 JS Trading Ltd","offers":[{"title":"Default Title","offer_id":56504749031802,"sku":"RY75","price":46.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/2239\/6850\/files\/RY75_1a19e549-659c-477e-8134-2e4109398668.jpg?v=1770381823"},{"product_id":"sterling-12v-140a-split-charge-relay-voltage-sensitive-relay-vsr-campervan-marine","title":"Sterling 140A Voltage Sensitive Relay - 12V VSR, Campervan \u0026 Marine","description":"\u003cp\u003e\u003cstrong\u003eSterling 140A Voltage Sensitive Relay (VSR)\u003c\/strong\u003e — a genuine Sterling Automotive Electrics 12V voltage sensitive relay, designed to safely charge two separate battery banks from a single charging source, such as a vehicle alternator, without risking a flat starter battery.\u003c\/p\u003e\n\n\u003cp\u003eBy monitoring battery voltage, the VSR automatically connects the secondary (leisure) battery only when the primary battery is fully charged. When voltage drops, the relay disconnects, ensuring your starter battery is always protected.\u003c\/p\u003e\n\n\u003cp\u003eWith dual-sensing technology, the relay can detect charging from either battery. This allows charging from external sources such as solar panels or mains chargers, making it ideal for campervans, motorhomes, boats, and 4x4s.\u003c\/p\u003e\n\n\u003cp\u003eThe solid-state, encapsulated design offers zero voltage drop, no moving parts, and excellent reliability in demanding environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003cbr\u003eSterling Automotive Electrics\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003cbr\u003e12V DC\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCurrent rating\u003c\/strong\u003e\u003cbr\u003e140A continuous\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSense type\u003c\/strong\u003e\u003cbr\u003eDual sensing (both batteries)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCut-in voltage\u003c\/strong\u003e\u003cbr\u003e13.3V DC\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCut-out voltage\u003c\/strong\u003e\u003cbr\u003e12.8V DC\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIndicator\u003c\/strong\u003e\u003cbr\u003eLED on when engaged\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStud size\u003c\/strong\u003e\u003cbr\u003eM6\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGround connection\u003c\/strong\u003e\u003cbr\u003eNegative (0.5m\/18 AWG wire)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eEncapsulated solid-state\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIgnition protection\u003c\/strong\u003e\u003cbr\u003eUL1107 compliant\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003cbr\u003eCE\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003cbr\u003e0.2kg\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003cbr\u003e68mm x 68mm x 49mm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e\u003cbr\u003eCampervan and motorhome conversions, split charging systems, marine and boat battery setups, 4x4 and off-grid vehicle builds, alternator, solar or mains charging systems\u003c\/p\u003e\n\n\u003cp\u003eMust be correctly earthed for proper operation. For 12V systems only.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as a VSR, split charge relay, or voltage sensing relay.\u003c\/p\u003e","brand":"DH \u0026 JS Trading Ltd","offers":[{"title":"Default Title","offer_id":56505151193466,"sku":"RY80","price":39.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/2239\/6850\/files\/RY80_c3633caa-9d69-4c2f-b1d8-aab88830ce63.jpg?v=1770382134"},{"product_id":"100a-split-charge-relay-24v-voltage-sensitive-relay-campervans-commercial-vehicles","title":"100A Voltage Sensitive Relay - 24V Split Charge, Campervan \u0026 Commercial","description":"\u003cp\u003e\u003cstrong\u003e100A Voltage Sensitive Relay (VSR)\u003c\/strong\u003e — a high quality 24V voltage sensitive relay designed to safely manage split charging between a primary (starter) battery and a secondary battery bank, without the risk of draining your main battery.\u003c\/p\u003e\n\n\u003cp\u003eBy monitoring system voltage, the relay automatically connects the secondary battery only when sufficient charging voltage is present. When voltage drops, it disconnects, ensuring the starter battery remains protected at all times.\u003c\/p\u003e\n\n\u003cp\u003eIdeal for 24V campervans, commercial vehicles, trucks, and specialist conversions, this relay offers reliable, automatic operation with no manual switching required. A built-in red LED indicator provides clear visual confirmation of relay status.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003cbr\u003e24V DC\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCurrent rating\u003c\/strong\u003e\u003cbr\u003e100A\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOperation\u003c\/strong\u003e\u003cbr\u003eAutomatic split charging\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngage\/disengage voltage\u003c\/strong\u003e\u003cbr\u003e[confirm from datasheet]\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIndicator\u003c\/strong\u003e\u003cbr\u003eRed LED\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eApproval\u003c\/strong\u003e\u003cbr\u003eCE approved\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable for\u003c\/strong\u003e\u003cbr\u003e24V campervan conversions, commercial and utility vehicles, split charging systems, dual battery installations, auxiliary battery charging setups\u003c\/p\u003e\n\n\u003cp\u003eFor 24V systems only. Prevents discharge of the starter battery, with simple automatic operation and no manual control required.\u003c\/p\u003e\n\n\u003cp\u003eAlso known as a VSR, split charge relay, or voltage sensing relay.\u003c\/p\u003e","brand":"DH \u0026 JS Trading Ltd","offers":[{"title":"Default Title","offer_id":56505350455674,"sku":"RY85","price":55.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/2239\/6850\/files\/RY85_3eeeedcb-271e-49d6-b0a2-e25dc1cc9dc2.jpg?v=1770382266"}],"url":"https:\/\/www.dhjstrading.com\/collections\/voltage-sensitive.oembed","provider":"DH \u0026 JS Trading Ltd","version":"1.0","type":"link"}