{"product_id":"onesto-din-rail-40a-3ka-3p-circuit-breaker","title":"ONESTO DIN RAIL 40A 3KA 3P CIRCUIT BREAKER","description":"\u003cp data-start=\"1941\" data-end=\"2355\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1945\" data-end=\"1987\"\u003eOnesto 40A 3P 3kA Mini Circuit Breaker\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edelivers dependable three‑phase circuit protection for a range of installations — from domestic three‑phase supplies to light‑industrial power distribution. Its\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2149\" data-end=\"2166\"\u003e3‑pole design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edisconnects all live conductors simultaneously, ensuring full circuit isolation and enhanced safety, especially in multi‑phase wiring systems or where balanced load protection is critical.\u003c\/p\u003e\n\u003cp data-start=\"2357\" data-end=\"2813\"\u003eWith a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2364\" data-end=\"2387\"\u003e40A per‑pole rating\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2394\" data-end=\"2437\"\u003eshort‑circuit breaking capacity of 3 kA\u003c\/strong\u003e, this breaker is engineered to safely interrupt overloads or fault currents, helping to protect wiring, connected equipment, and appliances. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2583\" data-end=\"2632\"\u003ethermal‑magnetic (C‑curve) tripping mechanism\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers a good balance: sensitive enough to respond under fault conditions but tolerant of normal current surges or inrush currents, which are common with motors or inductive loads.\u003c\/p\u003e\n\u003cul data-start=\"219\" data-end=\"1886\"\u003e\n\u003cli data-start=\"279\" data-end=\"380\"\u003e\n\u003cp data-start=\"281\" data-end=\"380\"\u003e\u003cstrong data-start=\"281\" data-end=\"290\"\u003eType:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMiniature Circuit Breaker (MCB), Triple‑Pole (3P)\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"381\" data-end=\"511\"\u003e\n\u003cp data-start=\"383\" data-end=\"511\"\u003e\u003cstrong data-start=\"383\" data-end=\"406\"\u003eRated Current (In):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e40 Amps — suitable for medium‑to‑high load three‑phase circuits.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"512\" data-end=\"716\"\u003e\n\u003cp data-start=\"514\" data-end=\"716\"\u003e\u003cstrong data-start=\"514\" data-end=\"550\"\u003eNumber of Poles \/ Configuration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3‑pole — disconnects all three live conductors (for 3‑phase systems or three‑wire configurations) for full circuit isolation.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"717\" data-end=\"874\"\u003e\n\u003cp data-start=\"719\" data-end=\"874\"\u003e\u003cstrong data-start=\"719\" data-end=\"753\"\u003eBreaking Capacity (Icu \/ Ics):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3 kA — safely interrupts overloads or short‑circuit fault currents up to 3000 A.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"875\" data-end=\"1029\"\u003e\n\u003cp data-start=\"877\" data-end=\"1029\"\u003e\u003cstrong data-start=\"877\" data-end=\"912\"\u003eRated Operational Voltage (Ue):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e220V (for domestic\/standard supply) — typical for Onesto 3‑pole 40A breaker.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1030\" data-end=\"1236\"\u003e\n\u003cp data-start=\"1032\" data-end=\"1236\"\u003e\u003cstrong data-start=\"1032\" data-end=\"1063\"\u003eTripping Mechanism \/ Curve:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThermal‑magnetic (C‑curve) — balanced protection against overloads and short‑circuit conditions; suitable for general‑purpose loads.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1237\" data-end=\"1436\"\u003e\n\u003cp data-start=\"1239\" data-end=\"1436\"\u003e\u003cstrong data-start=\"1239\" data-end=\"1266\"\u003eMounting \/ Form Factor:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDIN‑rail mount (standard 35 mm rail) — allows easy installation in 3‑phase breaker panels, distribution boards or consumer units.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1437\" data-end=\"1631\"\u003e\n\u003cp data-start=\"1439\" data-end=\"1631\"\u003e\u003cstrong data-start=\"1439\" data-end=\"1463\"\u003eProtection Provided:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOverload protection \u0026amp; short‑circuit protection — safeguards wiring, equipment, and connected devices against electrical faults.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1632\" data-end=\"1886\"\u003e\n\u003cp data-start=\"1634\" data-end=\"1886\"\u003e\u003cstrong data-start=\"1634\" data-end=\"1659\"\u003eTypical Applications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThree‑phase circuits in residential, commercial or light‑industrial settings; motors, three‑phase equipment, sub‑panels or power distribution lines requiring 40 A per phase protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ONESTO","offers":[{"title":"Default Title","offer_id":48115088523493,"sku":"KC3E\/340A","price":179.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/7191\/6261\/files\/unnamed_0d905e2a-9f6a-43c1-a218-1224c6ffbaf8.jpg?v=1765611685","url":"https:\/\/cajeeslighting.co.za\/products\/onesto-din-rail-40a-3ka-3p-circuit-breaker","provider":"Cajees Lighting and Electrical","version":"1.0","type":"link"}