{"product_id":"engo-ecb8-230-wired-underfloor-heating-control-box-8-zones-230v-pump-boiler-module-din-rail","title":"ENGO ECB8-230 Wired Underfloor Heating Control Box – 8 Zones, 230V, Pump \u0026 Boiler Module, DIN Rail","description":"\u003cstyle\u003e\n  .engo-desc * { box-sizing: border-box; }\n  .engo-desc { font-family: inherit; color: inherit; line-height: 1.7; font-size: 16px; }\n  .engo-desc p, .engo-desc li, .engo-desc td, .engo-desc th { font-size: 16px !important; line-height: 1.7; }\n  .engo-desc h2 { font-size: 22px !important; font-weight: 700; color: #1a1a1a; border-bottom: 2px solid #1a1a1a; padding-bottom: 6px; margin: 2rem 0 1rem; line-height: 1.3; }\n  .engo-desc h3 { font-size: 17px !important; font-weight: 700; color: #1a1a1a; margin: 1.2rem 0 0.4rem; line-height: 1.4; }\n  .engo-desc p { margin: 0 0 1rem; }\n  .engo-desc ul { padding-left: 1.5rem; margin: 0 0 1rem; }\n  .engo-desc ul li { margin-bottom: 0.5rem; }\n\n  .engo-intro-box { background: #f5f5f5; border-left: 4px solid #222; padding: 1.1rem 1.4rem; border-radius: 0 6px 6px 0; margin-bottom: 1.5rem; }\n  .engo-intro-box p { margin: 0 !important; }\n\n  .engo-badge { display: inline-block; background: #222; color: #fff; font-size: 13px !important; font-weight: 700; border-radius: 4px; padding: 2px 10px; margin-right: 6px; margin-bottom: 4px; vertical-align: middle; letter-spacing: 0.04em; }\n  .engo-badge.accent { background: #c05a00; }\n  .engo-badge.green { background: #2e7d32; }\n\n  .engo-why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.85rem; margin-bottom: 1.2rem; }\n  .engo-why-card { background: #f9f9f9; border: 1px solid #ddd; border-radius: 6px; padding: 1rem 1.1rem; line-height: 1.6; }\n  .engo-why-card strong { display: block; color: #1a1a1a; margin-bottom: 0.35rem; font-size: 16px !important; }\n\n  .engo-callout { background: #f0f8f0; border: 1px solid #a5d6a7; border-radius: 6px; padding: 1rem 1.3rem; margin: 1.2rem 0; }\n  .engo-callout h3 { margin-top: 0 !important; }\n  .engo-callout p { margin: 0 !important; }\n\n  .engo-callout-blue { background: #f0f4ff; border-left: 4px solid #1a1a1a; border-radius: 0 6px 6px 0; padding: 1rem 1.3rem; margin: 1.2rem 0; }\n  .engo-callout-blue p { margin: 0 !important; }\n\n  .engo-callout-warn { background: #fff8e6; border: 1px solid #f0d080; border-radius: 6px; padding: 1rem 1.2rem; margin: 1.2rem 0; color: #5a4a00; }\n  .engo-callout-warn p { margin: 0 !important; }\n\n  .engo-spec-table { width: 100%; border-collapse: collapse; margin-bottom: 1.2rem; }\n  .engo-spec-table th { background: #222; color: #fff !important; text-align: left; padding: 0.7rem 1rem; font-weight: 600; font-size: 16px !important; }\n  .engo-spec-table td { padding: 0.6rem 1rem; border-bottom: 1px solid #e0e0e0; vertical-align: top; font-size: 16px !important; }\n  .engo-spec-table tr:nth-child(even) td { background: #f5f5f5; }\n  .engo-spec-table td:first-child { font-weight: 600; color: #1a1a1a; width: 42%; }\n\n  .engo-pills { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 1.2rem; }\n  .engo-pill { background: #f0f0f0; color: #1a1a1a; border-radius: 20px; padding: 0.35rem 1rem; font-size: 15px !important; font-weight: 500; border: 1px solid #ccc; line-height: 1.4; }\n\n  .engo-faq-item { border-bottom: 1px solid #e0e0e0; padding: 1rem 0; }\n  .engo-faq-item:last-child { border-bottom: none; }\n  .engo-faq-item p { margin: 0.4rem 0 0 !important; }\n\n  .engo-inbox-list { list-style: none !important; padding: 0 !important; margin: 0 0 1rem !important; }\n  .engo-inbox-list li { padding: 0.5rem 0 0.5rem 1.8rem !important; border-bottom: 1px solid #ebebeb; position: relative; margin-bottom: 0 !important; font-size: 16px !important; }\n  .engo-inbox-list li::before { content: \"✓\"; position: absolute; left: 0; color: #2e7d32; font-weight: 700; }\n\n  .engo-infobox { background: #fff8e6; border: 1px solid #f0d080; border-radius: 6px; padding: 1rem 1.2rem; margin-top: 1.5rem; color: #5a4a00; line-height: 1.6; font-size: 16px !important; }\n\n  @media (max-width: 600px) {\n    .engo-why-grid { grid-template-columns: 1fr; }\n    .engo-spec-table td:first-child { width: auto; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"engo-desc\"\u003e\n\n\u003cdiv class=\"engo-intro-box\"\u003e\n  \u003cp\u003e\u003cstrong\u003eThe ENGO ECB8-230 is a wired 8-zone underfloor heating control box (wiring centre) with integrated pump and boiler control modules.\u003c\/strong\u003e Designed for 230V wired thermostat installations, it controls up to 8 independent heating zones, manages the circulation pump automatically, and triggers the heat source via a volt-free relay — all from a compact DIN-rail or surface-mount housing. It accepts up to 50 actuators across all zones without additional relay modules.\u003c\/p\u003e\n  \u003cdiv class=\"engo-badges\"\u003e\n    \u003cspan class=\"engo-badge\"\u003e8 Zones\u003c\/span\u003e\n    \u003cspan class=\"engo-badge\"\u003e230V Wired\u003c\/span\u003e\n    \u003cspan class=\"engo-badge\"\u003ePump Control Included\u003c\/span\u003e\n    \u003cspan class=\"engo-badge\"\u003eVolt-Free Boiler Output\u003c\/span\u003e\n    \u003cspan class=\"engo-badge\"\u003eUp to 50 Actuators\u003c\/span\u003e\n    \u003cspan class=\"engo-badge\"\u003eDIN Rail Mount\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy Choose the ENGO ECB8-230?\u003c\/h2\u003e\n\u003cdiv class=\"engo-why-grid\"\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e🏠 \u003cstrong\u003e8 Independent Zones\u003c\/strong\u003e\u003cp\u003eControl up to 8 separate heating circuits, each with its own thermostat — room-by-room temperature management.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e💧 \u003cstrong\u003eIntegrated Pump Control\u003c\/strong\u003e\u003cp\u003e230V pump output starts 3 minutes after any zone calls for heat and stops when all zones are satisfied — no additional relay needed.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e🔥 \u003cstrong\u003eVolt-Free Boiler Output\u003c\/strong\u003e\u003cp\u003eNO\/COM\/NC relay output controls any gas, oil, LPG, or electric heat source — compatible with all standard boilers.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e🔌 \u003cstrong\u003e50 Actuators, No Extra Relays\u003c\/strong\u003e\u003cp\u003eThe dual-socket zone outputs can drive up to 50 NC actuators at 2 W each without additional relay modules.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e🔧 \u003cstrong\u003eRemovable Terminal Blocks\u003c\/strong\u003e\u003cp\u003ePlug-in, removable wiring terminals make installation, replacement, and servicing quick and clean.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e📦 \u003cstrong\u003eDIN Rail or Surface Mount\u003c\/strong\u003e\u003cp\u003eSlim housing fits standard DIN rail in a consumer unit or can be surface-mounted in a manifold cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e⏱️ \u003cstrong\u003e3-Min Pump\/Boiler Delay\u003c\/strong\u003e\u003cp\u003eBuilt-in overrun logic delays the pump start and boiler trigger to protect the system and prevent short cycling.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"engo-why-card\"\u003e💡 \u003cstrong\u003eZone Status LEDs\u003c\/strong\u003e\u003cp\u003eIndividual LED indicators for each zone show at a glance which rooms are calling for heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cdiv class=\"engo-pills\"\u003e\n  \u003cspan class=\"engo-pill\"\u003eWet Underfloor Heating\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eMulti-Zone Residential UFH\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eCommercial UFH\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eNew Build Installations\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eGas \/ Oil \/ LPG Boilers\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eElectric Boilers\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003e230V Wired Thermostats\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eNC Thermoelectric Actuators\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eManifold Cabinets\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eDIN Rail Panels\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003eHeatmiser \/ Honeywell Replacement\u003c\/span\u003e\n  \u003cspan class=\"engo-pill\"\u003ePlant Room Installation\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eAbout the ECB8-230\u003c\/h2\u003e\n\u003cp\u003eThe ECB8-230 is the central wiring centre for a complete 8-zone wired UFH control system. It accepts 230V AC wired room thermostats on each of its 8 zone inputs. When a thermostat calls for heat, the corresponding zone output activates its NC thermoelectric actuators (e.g. ENGO E30NC-230), the pump output starts after a 3-minute delay, and the boiler output signals the heat source via its volt-free relay.\u003c\/p\u003e\n\n\u003cdiv class=\"engo-callout-blue\"\u003e\n  \u003cstrong\u003e🔌 Zone Input Compatibility\u003c\/strong\u003e\u003cbr\u003e\n  Each of the 8 zones accepts either a \u003cstrong\u003e230V AC wired thermostat\u003c\/strong\u003e (with SL control output) or a \u003cstrong\u003ebattery-powered thermostat\u003c\/strong\u003e with a volt-free COM\/NO contact. This means you can mix thermostat types across zones in the same installation — for example, 230V stats in main rooms and battery stats in locations where cable runs are impractical.\n\u003c\/div\u003e\n\n\u003cp\u003eEach zone has a dedicated dual-socket output for actuators. The dual socket allows two actuators to be connected per connector without any wiring adaptors, and up to 6 actuators per zone can be run directly (6 × 2 W = 12 W per zone within the zone rating). For zones with more than 6 actuators, use an ENGO ERM-12A relay module to extend capacity.\u003c\/p\u003e\n\n\u003cp\u003eThe boiler output supports NO, COM, and NC configurations, giving full flexibility to match whatever connection type your heat source requires. The pump output is 230V AC with a maximum 3A load — sufficient for most domestic central heating pumps.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eControls 8 independent heating zones\u003c\/li\u003e\n  \u003cli\u003eDesigned for wired NC thermoelectric actuators (e.g. E30NC-230)\u003c\/li\u003e\n  \u003cli\u003e230V AC zone outputs for actuators — dual socket per zone\u003c\/li\u003e\n  \u003cli\u003eAccepts 230V wired or battery-powered (volt-free) thermostats\u003c\/li\u003e\n  \u003cli\u003eIntegrated 230V pump output — max 3A load\u003c\/li\u003e\n  \u003cli\u003e3-minute pump start delay after heat demand received\u003c\/li\u003e\n  \u003cli\u003eVolt-free boiler relay output: NO\/COM\/NC\u003c\/li\u003e\n  \u003cli\u003eSupports up to 50 actuators at 2 W across all 8 zones without additional relays\u003c\/li\u003e\n  \u003cli\u003eRemovable, plug-in terminal blocks for easy wiring\u003c\/li\u003e\n  \u003cli\u003eDIN rail mount or flat surface mount\u003c\/li\u003e\n  \u003cli\u003eScrew-on cover and compact slim housing\u003c\/li\u003e\n  \u003cli\u003eLED indicators for each zone (active demand)\u003c\/li\u003e\n  \u003cli\u003eRed LED power indicator\u003c\/li\u003e\n  \u003cli\u003e6.3A ceramic cartridge fuse (5×20 mm, slow-blow)\u003c\/li\u003e\n  \u003cli\u003eFor indoor dry use only\u003c\/li\u003e\n  \u003cli\u003eEMC, LVD, and RoHS compliant\u003c\/li\u003e\n  \u003cli\u003eUpgrade path to ZigBee smart control: pair with ECB62-ZB or add ENGO ZigBee thermostats\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"engo-spec-table\"\u003e\n  \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eECB8-230\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e230V AC \/ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eNumber of Zones\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eZone Output Voltage\u003c\/td\u003e\n\u003ctd\u003e230V AC (for NC actuators)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Actuators (total)\u003c\/td\u003e\n\u003ctd\u003e50 × 2W (without additional relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eActuator Type\u003c\/td\u003e\n\u003ctd\u003eNC (Normally Closed) only\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePump Output\u003c\/td\u003e\n\u003ctd\u003e230V AC, max 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePump Start Delay\u003c\/td\u003e\n\u003ctd\u003e3 minutes after first heat demand\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBoiler Output\u003c\/td\u003e\n\u003ctd\u003eVolt-free NO\/COM\/NC relay\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eZone Input Types\u003c\/td\u003e\n\u003ctd\u003e230V AC thermostat or battery (COM\/NO volt-free)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFuse\u003c\/td\u003e\n\u003ctd\u003e6.3A ceramic tube, 5×20 mm slow-blow\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail or flat surface\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTerminal Blocks\u003c\/td\u003e\n\u003ctd\u003eRemovable \/ plug-in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eIndoor dry use only\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eEMC 2014\/30\/EU, LVD 2014\/35\/EU, RoHS 2011\/65\/EU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eInstallation must be carried out by a qualified person in accordance with BS 7671. Disconnect 230V power before making any wiring connections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMount on DIN rail or flat surface in a manifold cabinet or consumer unit enclosure\u003c\/li\u003e\n  \u003cli\u003eConnect 230V L and N supply to the power input terminals\u003c\/li\u003e\n  \u003cli\u003eWire each zone thermostat to the corresponding zone input (SL for 230V stats; COM\/NO for battery stats)\u003c\/li\u003e\n  \u003cli\u003ePlug actuator leads into the dual zone output sockets\u003c\/li\u003e\n  \u003cli\u003eConnect circulation pump to the 230V pump output (max 3A)\u003c\/li\u003e\n  \u003cli\u003eConnect boiler thermostat input to the volt-free COM\/NO\/NC boiler output\u003c\/li\u003e\n  \u003cli\u003eReplace the 6.3A fuse only with an equivalent rated ceramic slow-blow type\u003c\/li\u003e\n  \u003cli\u003eFor zones requiring more than 6 actuators, add an ENGO ERM-12A relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eWhat type of thermostat does this work with?\u003c\/h3\u003e\n    \u003cp\u003eThe ECB8-230 works with 230V AC wired room thermostats on its SL zone inputs, and also with battery-powered or volt-free thermostats using the COM\/NO input. This means you can mix thermostat types across zones in the same system.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eCan I use NO actuators with this box?\u003c\/h3\u003e\n    \u003cp\u003eNo — the ECB8-230 is designed for NC (normally closed) actuators only. The 230V zone output activates to open the valve. Using NO actuators would result in valves being open at all times when no heat is demanded.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eDo I need a separate relay for my pump?\u003c\/h3\u003e\n    \u003cp\u003eNo — the pump output is built in, rated at 230V\/3A. Just wire your circulation pump directly to the pump output terminals.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eWhat if I need more than 8 zones?\u003c\/h3\u003e\n    \u003cp\u003eFor 8 zones with a mix of wireless and wired zones, consider the ECB62-ZB (6 ZigBee wireless + 2 wired). For more than 8 wired zones, use multiple ECB8-230 units with a common boiler\/pump output.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"engo-faq-item\"\u003e\n    \u003ch3\u003eIs this compatible with smart thermostats?\u003c\/h3\u003e\n    \u003cp\u003eYes — any thermostat with a 230V AC SL output (such as ENGO wired thermostats) connects directly. For wireless smart control, pair with ENGO ZigBee thermostats and the EGATE-PRO gateway, or use the ECB62-ZB wiring centre instead for native ZigBee integration.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× ECB8-230 wired 8-zone control box\u003c\/li\u003e\n  \u003cli\u003eRemovable terminal block connectors (pre-fitted)\u003c\/li\u003e\n  \u003cli\u003eScrew-on cover\u003c\/li\u003e\n  \u003cli\u003eQuick installation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin-top:24px; color:#666;\"\u003eInstallation by qualified person per BS 7671. NC actuators only. For ZigBee smart zone control see \u003cstrong\u003eECB62-ZB\u003c\/strong\u003e. Compatible actuator: \u003cstrong\u003eE30NC-230\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"ENGO Controls","offers":[{"title":"Default Title","offer_id":63494662455645,"sku":"ECB8-230","price":52.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ENGOECB8-2308ChannelWiringCentre.webp?v=1771488803","url":"https:\/\/qualityheating.co.uk\/products\/engo-ecb8-230-wired-underfloor-heating-control-box-8-zones-230v-pump-boiler-module-din-rail","provider":"AIZO Quality Heating","version":"1.0","type":"link"}