{"product_id":"onesto-mc3-54mm-modular-contactor-4-pole-32a-40a-63a-230v-coil-din-rail","title":"Onesto MC3 54mm Modular Contactor – 4-Pole | 32A, 40A \u0026 63A | 230V Coil | DIN Rail","description":"\u003cp\u003eThe Onesto MC3 range is a heavy-duty 4-pole DIN rail modular contactor designed for switching electrical loads in residential, commercial, and light industrial distribution boards. With a 54mm DIN rail footprint and a 230V AC control coil, the MC3 range is a direct fit for standard DB boards where higher current switching is required. Available in 32A, 40A, and 63A ratings across three contact configurations (4NO, 2NO+2NC, and 3NO+1NC) to suit a wide range of switching, automation, and control circuit applications. Conforms to IEC60947-5-1.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Onesto\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Ratings:\u003c\/strong\u003e 32A (AC-7a), 40A (AC-7a), 63A (AC-7a)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4-pole\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Voltage:\u003c\/strong\u003e 230V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Configurations:\u003c\/strong\u003e 4NO, 2NO+2NC, 3NO+1NC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN Rail Width:\u003c\/strong\u003e 54mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e IEC60947-5-1\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e4-pole design provides full switching of all conductors – suitable for total load isolation\u003c\/li\u003e\n  \u003cli\u003e54mm modular DIN rail width – fits standard distribution boards and enclosures\u003c\/li\u003e\n  \u003cli\u003eStandard 230V AC control coil – compatible with most domestic and commercial control circuits\u003c\/li\u003e\n  \u003cli\u003eAvailable in 32A, 40A, and 63A to cover a wide range of load switching requirements\u003c\/li\u003e\n  \u003cli\u003eThree contact configurations: 4NO for simple switching, 2NO+2NC and 3NO+1NC for combined control circuit applications\u003c\/li\u003e\n  \u003cli\u003eRated insulation voltage 500V (UI) and impulse withstand voltage 4kV (UIMP) for robust performance\u003c\/li\u003e\n  \u003cli\u003eConforms to IEC60947-5-1 for reliable, standards-compliant operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLighting circuit automation in commercial and residential DB boards\u003c\/li\u003e\n  \u003cli\u003eWater heater, geyser, and thermal load switching\u003c\/li\u003e\n  \u003cli\u003ePool pump, borehole pump, and irrigation system control\u003c\/li\u003e\n  \u003cli\u003eHVAC and air conditioning load switching\u003c\/li\u003e\n  \u003cli\u003eSolar and energy management load control\u003c\/li\u003e\n  \u003cli\u003eThree-phase motor starting circuits (contactors only – overload relay required separately)\u003c\/li\u003e\n  \u003cli\u003eGeneral 4-pole load switching in distribution boards and control panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnesto\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMC3 Modular Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-pole\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Ratings (AC-7a)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32A \/ 40A \/ 63A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuxiliary Current (AC-7b)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12A (32A model) \/ 18A (40A model) \/ 25A (63A model)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Voltage (UC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Rating (UE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Insulation Voltage (UI)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImpulse Withstand Voltage (UIMP)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4kV\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Configurations\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4NO \/ 2NO+2NC \/ 3NO+1NC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDIN Rail Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEC60947-5-1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eVariant Reference\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRating (AC-7a)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAux (AC-7b)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eContacts\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32929\u003c\/td\u003e\n\u003ctd\u003e32A\u003c\/td\u003e\n\u003ctd\u003e12A\u003c\/td\u003e\n\u003ctd\u003e4NO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32931\u003c\/td\u003e\n\u003ctd\u003e32A\u003c\/td\u003e\n\u003ctd\u003e12A\u003c\/td\u003e\n\u003ctd\u003e2NO+2NC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32932\u003c\/td\u003e\n\u003ctd\u003e32A\u003c\/td\u003e\n\u003ctd\u003e12A\u003c\/td\u003e\n\u003ctd\u003e3NO+1NC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32941\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003ctd\u003e18A\u003c\/td\u003e\n\u003ctd\u003e4NO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32943\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003ctd\u003e18A\u003c\/td\u003e\n\u003ctd\u003e2NO+2NC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32944\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003ctd\u003e18A\u003c\/td\u003e\n\u003ctd\u003e3NO+1NC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32953\u003c\/td\u003e\n\u003ctd\u003e63A\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003ctd\u003e4NO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32955\u003c\/td\u003e\n\u003ctd\u003e63A\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003ctd\u003e2NO+2NC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e32956\u003c\/td\u003e\n\u003ctd\u003e63A\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003ctd\u003e3NO+1NC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Onesto MC3 Modular Contactor in selected current rating and contact configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Control wiring, overload relays, auxiliary contacts, timers, and DIN rail mounting hardware are not included. For motor starting applications, a correctly rated overload relay must be used in conjunction with this contactor.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm your required current rating (32A, 40A, or 63A) based on the full load current of the load being switched.\u003c\/li\u003e\n  \u003cli\u003eControl coil voltage is 230V AC – ensure your control circuit operates at 230V before ordering.\u003c\/li\u003e\n  \u003cli\u003eSelect 4NO for simple load switching; 2NO+2NC or 3NO+1NC where control circuit interlocking or signalling is required.\u003c\/li\u003e\n  \u003cli\u003eThe 54mm DIN rail footprint requires adequate panel space – confirm DIN rail availability before ordering.\u003c\/li\u003e\n  \u003cli\u003eFor motor applications, always pair with an appropriately rated overload relay and confirm the AC-7b auxiliary rating is sufficient for your control circuit.\u003c\/li\u003e\n  \u003cli\u003eInstallation must be carried out by a suitably qualified electrician in accordance with SANS 10142.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eWarranty \u0026amp; Support\u003c\/h3\u003e\n\u003cp\u003eThis product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms. Zisabo is an Onesto distributor and supplies quality electrical products with practical support to help customers choose the correct item for their application. If you are unsure which variant suits your application, contact us before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNeed help choosing?\u003c\/strong\u003e Contact Zisabo with your load type, full load current, and control circuit requirements and we will help you select the correct MC3 variant.\u003c\/p\u003e","brand":"Onesto","offers":[{"title":"32A \/ 4NO","offer_id":49467764080897,"sku":"32929","price":455.4,"currency_code":"ZAR","in_stock":false},{"title":"32A \/ 2NO+2NC","offer_id":49467764113665,"sku":"32931","price":403.6,"currency_code":"ZAR","in_stock":false},{"title":"32A \/ 3NO+1NC","offer_id":49467764146433,"sku":"32932","price":472.6,"currency_code":"ZAR","in_stock":false},{"title":"40A \/ 4NO","offer_id":49467764179201,"sku":"32941","price":403.6,"currency_code":"ZAR","in_stock":false},{"title":"40A \/ 2NO+2NC","offer_id":49467764211969,"sku":"32943","price":455.4,"currency_code":"ZAR","in_stock":false},{"title":"40A \/ 3NO+1NC","offer_id":49467764244737,"sku":"32944","price":539.3,"currency_code":"ZAR","in_stock":false},{"title":"63A \/ 4NO","offer_id":49467764277505,"sku":"32953","price":502.5,"currency_code":"ZAR","in_stock":false},{"title":"63A \/ 2NO+2NC","offer_id":49467764310273,"sku":"32955","price":587.6,"currency_code":"ZAR","in_stock":false},{"title":"63A \/ 3NO+1NC","offer_id":49467764343041,"sku":"32956","price":502.5,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/6924\/2369\/files\/32953.png?v=1782546775","url":"https:\/\/www.zisabo.co.za\/products\/onesto-mc3-54mm-modular-contactor-4-pole-32a-40a-63a-230v-coil-din-rail","provider":"Zisabo","version":"1.0","type":"link"}