{"product_id":"siemens-miniature-circuit-breaker-c-curve-1-pole-230v-10ka-20a","title":"Siemens Miniature circuit breaker, C-curve, 1-pole, 230V, 10kA, 20A","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 5SL4120-7 is the Siemens SENTRON 5SL4 miniature circuit breaker, 1-pole, 20 A, C-characteristic. It is designed for overload and short-circuit protection in single-phase or multi-phase AC electrical installations, providing reliable protection with compact dimensions — suitable for distribution boards, control panels, and general electrical installations.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-pole miniature circuit breaker (1P)\u003c\/li\u003e\n\u003cli\u003eRated current: 20 A (at 30 °C) — derated slightly at higher ambient temperatures\u003c\/li\u003e\n\u003cli\u003eTripping characteristic: C — suitable for general loads and circuits with moderate inrush\u003c\/li\u003e\n\u003cli\u003eRated operational voltage: 230\/400 V AC (max. 440 V AC for multi-phase)\u003c\/li\u003e\n\u003cli\u003eBreaking capacity: 10 kA (suitable for typical short-circuit protection) — energy-limiting class 3\u003c\/li\u003e\n\u003cli\u003eScrew-type terminals — accepts conductors from 0.75 mm² up to 25 mm²\u003c\/li\u003e\n\u003cli\u003eCompact modular width: 1 unit (≈ 18 mm) — saves space in DIN-rail enclosures\u003c\/li\u003e\n\u003cli\u003eMounting: DIN-rail (35 mm) — supports quick assembly and installation in distribution boards or control panels\u003c\/li\u003e\n\u003cli\u003eTouch-protected terminals and halogen-free, silicone-free materials — suitable for safe wiring and environmental compliance\u003c\/li\u003e\n\u003cli\u003eSealable handle option — allows lockout\/tagout for maintenance or safety purposes\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 5SL4120-7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1 (single-pole)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current (In):\u003c\/strong\u003e 20 A at 30 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Operational Voltage (AC):\u003c\/strong\u003e 230\/400 V AC (max. 440 V AC for multi-phase)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Capacity (Icu \/ Ics):\u003c\/strong\u003e 10 kA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTripping Curve:\u003c\/strong\u003e C characteristic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Cross-section Range:\u003c\/strong\u003e 0.75 … 25 mm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Tightening Torque:\u003c\/strong\u003e 2.5 … 3.0 N·m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Width:\u003c\/strong\u003e 1 unit (≈ 18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (approx.):\u003c\/strong\u003e Height 90 mm, Depth 76 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Rating:\u003c\/strong\u003e IP20 (with connected conductors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Operating Temperature:\u003c\/strong\u003e –25 °C … +55 °C (typical for indoor installations)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Service Life:\u003c\/strong\u003e ~10,000 switching cycles under rated load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Properties:\u003c\/strong\u003e Halogen-free, silicone-free, touch-protected terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Accessories:\u003c\/strong\u003e Auxiliary contacts, fault-signal contacts, shunt trips, undervoltage releases — for enhanced functionality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Certifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompliant with relevant low-voltage circuit-breaker standards (EN \/ IEC series for miniature circuit breakers)\u003c\/li\u003e\n\u003cli\u003eDesigned within the SENTRON 5SL4 product line — compatible with standard bus-mounting and accessory systems\u003c\/li\u003e\n\u003cli\u003eSuitable for residential, commercial, and light-industrial electrical installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe 5SL4120-7 is ideal for branch-circuit protection in distribution boards, control panels, and electrical installations supplying lighting, socket outlets, small motors, or general loads. Its 20 A rating and C-characteristic make it suitable for circuits with moderate inrush currents — such as small motor loads, lighting circuits with compact fluorescent or LED fixtures, or mixed general-purpose loads. The compact design and DIN-rail mounting make it flexible for use in new installations or retrofits where space is limited.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775049773120,"sku":"5SL4120-7","price":195.56,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/5SL4120-7.jpg?v=1764595459","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-miniature-circuit-breaker-c-curve-1-pole-230v-10ka-20a","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}