--- product_id: 48678808 title: "12V 140amp Durite 0-727-33 voltage sensitive/intelligent Split Charge Relay" brand: "witpoce" price: "£87.53" currency: GBP in_stock: true reviews_count: 9 category: "Witpoce" url: https://www.desertcart.co.uk/products/48678808-12v-140amp-durite-0-727-33-voltage-sensitive-intelligent-split store_origin: GB region: United Kingdom --- # 140A high current capacity Dual-sensing for multi-source charging Voltage-sensitive auto activation 12V 140amp Durite 0-727-33 voltage sensitive/intelligent Split Charge Relay **Brand:** witpoce **Price:** £87.53 **Availability:** ✅ In Stock ## Summary > ⚡ Power up smartly, never get stranded! ## Quick Answers - **What is this?** 12V 140amp Durite 0-727-33 voltage sensitive/intelligent Split Charge Relay by witpoce - **How much does it cost?** £87.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/48678808-12v-140amp-durite-0-727-33-voltage-sensitive-intelligent-split) ## Best For - witpoce enthusiasts ## Why This Product - Trusted witpoce brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durite’s trusted 140A relay with silver contacts and a 5-year warranty ensures dependable performance for years. - • **Dual-Sensing Technology:** Supports charging from alternators, solar panels, or mains chargers for versatile power management. - • **Smart Voltage Detection:** Activates above 13.3V to seamlessly charge your leisure battery only when your engine runs. - • **Plug & Play Installation:** No ignition feed or complex wiring needed—perfect for modern campervans, 4x4s, and boats. - • **Starter Battery Protection:** Isolates below 12.65V to prevent starter battery drain—guaranteeing reliable vehicle starts every time. ## Overview The Durite 0-727-33 is a 12V 140A intelligent split charge relay that automatically manages charging between your vehicle’s starter and leisure batteries. It activates when voltage exceeds 13.3V and isolates below 12.65V to protect your starter battery. Dual-sensing allows charging from alternators, solar, or mains sources without extra wiring, making it ideal for campervans, motorhomes, 4x4s, and boats. With silver contacts, DIN rail mounting, and a 5-year warranty, it’s a reliable upgrade for modern vehicle power systems. ## Description Durite 0-727-33 Voltage Sense 140amp Intelligent RelayThe voltage sense relay simply detects the rise in voltage from you vehicles charging system when it exceeds 13.3v to allow you to charge your leisure battery(s) while your engine is running. Whe nyour engine is switched off and the battery voltage drops below 12.65v the relay will isolate your leisure battery(s) from your main starter battery so it does not drain your main starter battery and you will always be able to start your vehicle. All of the range of 140amp voltage sensitive relays are dualsensing meaning that if a charging voltage like through a mains charger or solar panel is applied to the leisure battery that exceeds the relay activation voltage of 13.3v it will activate the relay toallow this charging device to also maintain the starter battery.Additional InformationRelay activation voltage 13.3vRelay isolation Voltage 12.65vDuel sense operation Voltage sense systems are especially suited for modern vehicles asthis type of system does not need an ignition feed or any additionalwiring into your vehicle but for modern Intelligent smart charging vehicles with Euro cat 5&6 engines you may need to use a DC to DCcharger Review: 140 amp Durite - Good product. Have bought three of these over several years. Well worth the money. Review: Ten years now,no issues - I'm a bit late doing this...been fitted in my campervan for must be 10years now....works well does what it should!! ## Features - 12V 140amp voltage sensitive/intelligent Split Charge Relay - The relay simply detects the rise in voltage from the vehicles charging system when the engine is started to allow power to charge your second/leisure battery. - Suitable for all Camper vans, Motor homes, Caravans, 4x4s and Boats. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00N8P975S | | Best Sellers Rank | 15,287 in Automotive ( See Top 100 in Automotive ) 31 in Car Relays | | Brand | WITPOCE | | Coil Voltage | 12 Volts | | Connector Type | Screw | | Connector type | Screw | | Contact Current Rating | 140 Amps | | Contact Material | Silver | | Contact Type | Normally Open | | Contact material | Silver | | Contact type | Normally Open | | Current Rating | 140 Amps | | Current rating | 140 Amps | | Customer Reviews | 4.6 out of 5 stars 325 Reviews | | Manufacturer | Durite | | Manufacturer Part Number | 0-727-33 | | Maximum Switching Voltage | 12 Volts | | Minimum Switching Voltage | 13.3 Volts | | Model Number | B00N8P975S | | Mounting Type | DIN Rail Mount | | Mounting type | DIN Rail Mount | | Number of Terminals | 3 | | Operation Mode | Automatic | | Product Warranty | 5 years | | UPC | 789545554208 | ## Product Details - **Connector type:** Screw - **Contact material:** Silver - **Contact type:** Normally Open - **Current rating:** 140 Amps - **Mounting type:** DIN Rail Mount ## Images ![12V 140amp Durite 0-727-33 voltage sensitive/intelligent Split Charge Relay - Image 1](https://m.media-amazon.com/images/I/71tAHIycwhL.jpg) ![12V 140amp Durite 0-727-33 voltage sensitive/intelligent Split Charge Relay - Image 2](https://m.media-amazon.com/images/I/81n6igr4tZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 140 amp Durite *by A***R on 6 May 2026* Good product. Have bought three of these over several years. Well worth the money. ### ⭐⭐⭐⭐⭐ Ten years now,no issues *by D***S on 24 April 2026* I'm a bit late doing this...been fitted in my campervan for must be 10years now....works well does what it should!! ### ⭐⭐⭐⭐ Does what it meant to *by C***W on 1 March 2020* As advertised ## Frequently Bought Together - 12V 140amp Durite 0-727-33 voltage sensitive/intelligent Split Charge Relay - All Trade Direct 1 X Strip Link & Midi Fuse Holder For Striplink & Midi Fuses Fuseholder Fits All - All Trade Direct 2 X 100 Amp Midi Fuse High Current All Midi Amps 40-150Amp & Fuseholder Stocked --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/48678808-12v-140amp-durite-0-727-33-voltage-sensitive-intelligent-split](https://www.desertcart.co.uk/products/48678808-12v-140amp-durite-0-727-33-voltage-sensitive-intelligent-split) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-12*