{"product_id":"siemens-miniature-circuit-breaker-3-pole-400v-10ka-20a","title":"Siemens Miniature circuit breaker, 3-pole, 400V, 10kA, 20A","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 5SY4320-7 is a SENTRON miniature circuit breaker (MCB) designed for reliable overcurrent and short-circuit protection in low-voltage electrical installations. This 3-pole MCB features a C-characteristic tripping curve and is rated for 20 A continuous current at a supply voltage of up to 400 V AC. With a high breaking capacity of 10 kA and robust design suitable for DIN-rail mounting, the 5SY4320-7 protects circuits against overloads, faults, and short circuits in industrial, commercial, and infrastructure applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3-pole SENTRON miniature circuit breaker\u003c\/li\u003e\n\u003cli\u003eRated current: 20 A for AC operation\u003c\/li\u003e\n\u003cli\u003eC-characteristic tripping curve for general protection\u003c\/li\u003e\n\u003cli\u003eRated voltage up to 400 V AC with AC\/DC capability\u003c\/li\u003e\n\u003cli\u003eHigh breaking capacity of 10 kA per EN standards\u003c\/li\u003e\n\u003cli\u003eSuitable for DIN-rail mounting\u003c\/li\u003e\n\u003cli\u003eQuick assembly system for easy installation\u003c\/li\u003e\n\u003cli\u003eSealable and halogen-free design\u003c\/li\u003e\n\u003cli\u003eCombined top and bottom terminals for flexible wiring\u003c\/li\u003e\n\u003cli\u003eTouch protection and safety features\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 5SY4320-7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e SENTRON 5SY4 Miniature Circuit Breakers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e 20 A at AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTripping Characteristic:\u003c\/strong\u003e Class C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Operational Voltage (Ue):\u003c\/strong\u003e 400 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Voltage (Ui):\u003c\/strong\u003e 440 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Capacity (Icn):\u003c\/strong\u003e 10 kA (EN standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching Capacity:\u003c\/strong\u003e 20 kA per IEC 60947-2; 15 kA DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Voltage Frequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e DIN-rail quick assembly system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Terminals:\u003c\/strong\u003e Combined top and bottom screw terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectable Conductor Cross-Section:\u003c\/strong\u003e 0.75 to 35 mm² solid or stranded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDegree of Protection:\u003c\/strong\u003e IP20 (with connected conductors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Width Units (W):\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H×W×D):\u003c\/strong\u003e approx. 90 × 54 × 76 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e −40 °C to +70 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature Range:\u003c\/strong\u003e −40 °C to +75 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Service Life:\u003c\/strong\u003e approx. 20,000 switching cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvervoltage Category:\u003c\/strong\u003e III\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePollution Degree:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 468 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Standards\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned and tested according to IEC\/EN 60898-1 and IEC\/EN 60947-2 standards\u003c\/li\u003e\n\u003cli\u003eConforms to safety and performance requirements for miniature circuit breakers\u003c\/li\u003e\n\u003cli\u003eSuitable for use in residential, commercial, and industrial electrical distribution systems\u003c\/li\u003e\n\u003cli\u003eHalogen-free and touch-protected design complies with modern installation safety norms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 5SY4320-7 miniature circuit breaker is used for circuit protection in electrical installations such as industrial control panels, commercial switchboards, infrastructure installations, and building distribution boards. Its C-curve characteristic makes it well suited for circuits containing general loads, lighting, receptacles, and small motor circuits requiring standard overload and short-circuit protection.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775030931520,"sku":"5SY4320-7","price":895.24,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/G_I202_XX_88036I.jpg?v=1765453973","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-miniature-circuit-breaker-3-pole-400v-10ka-20a","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}