{"product_id":"live-electrical-cn125b-25a-b-curve-double-pole-bi-directional-mcb-for-srn-consumer-units","title":"Live Electrical CN125B 25A B Curve Double Pole Bi-Directional MCB for SRN Consumer Units","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eLive Electrical CN125B 25A B Curve Double Pole Bi-Directional MCB for SRN Consumer Units\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch2\u003e25A 2 Pole Bi-Directional B Curve MCB for Compatible Live Electrical SRN Consumer Units\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLive Electrical CN125B\u003c\/strong\u003e is a \u003cstrong\u003e25A B Curve double pole bi-directional miniature circuit breaker (MCB)\u003c\/strong\u003e designed specifically for use with compatible \u003cstrong\u003eLive Electrical SRN consumer units and double pole busbar arrangements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRated at \u003cstrong\u003e230V\u003c\/strong\u003e with a \u003cstrong\u003e6kA fault current rating\u003c\/strong\u003e, the CN125B provides overcurrent protection for appropriately designed 25A circuits while using a \u003cstrong\u003e2 pole configuration\u003c\/strong\u003e. Its bi-directional design allows current flow in either direction where required by the compatible installation.\u003c\/p\u003e\n\u003cp\u003eThe CN125B is intended specifically for the \u003cstrong\u003eLive Electrical SRN consumer unit system\u003c\/strong\u003e and should be used with the appropriate SRN board and compatible Live Electrical busbar arrangement.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLive Electrical CN125B\u003c\/li\u003e\n\u003cli\u003e25A Current Rating\u003c\/li\u003e\n\u003cli\u003eB Curve Tripping Characteristic\u003c\/li\u003e\n\u003cli\u003eDouble Pole \/ 2P Configuration\u003c\/li\u003e\n\u003cli\u003eBi-Directional MCB\u003c\/li\u003e\n\u003cli\u003e6kA Fault Current Rating\u003c\/li\u003e\n\u003cli\u003e230V Rated\u003c\/li\u003e\n\u003cli\u003eMiniature Circuit Breaker\u003c\/li\u003e\n\u003cli\u003eDesigned for Live Electrical SRN Consumer Units\u003c\/li\u003e\n\u003cli\u003eCompatible with Appropriate Live Electrical SRN Busbars\u003c\/li\u003e\n\u003cli\u003eSuitable for Compatible Double Pole Busbar Arrangements\u003c\/li\u003e\n\u003cli\u003eProvides Overcurrent Protection\u003c\/li\u003e\n\u003cli\u003eSuitable for Appropriately Designed 25A Circuits\u003c\/li\u003e\n\u003cli\u003ePurpose-Designed SRN Consumer Unit Protective Device\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e25A Current Rating\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCN125B has a rated current of 25A\u003c\/strong\u003e, making it suitable for appropriately designed circuits requiring a 25A protective device.\u003c\/p\u003e\n\u003cp\u003eThe correct MCB rating must always be determined according to the connected load, conductor size, installation method, circuit characteristics and applicable electrical installation requirements.\u003c\/p\u003e\n\u003cp\u003eThe 25A rating should therefore be selected as part of the circuit design rather than simply as a replacement based on physical compatibility.\u003c\/p\u003e\n\u003ch2\u003eB Curve Tripping Characteristic\u003c\/h2\u003e\n\u003cp\u003eThe CN125B features a \u003cstrong\u003eB Curve tripping characteristic\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eB Curve MCBs are commonly used on appropriate circuits where the expected inrush current is relatively low.\u003c\/p\u003e\n\u003cp\u003eThe required tripping characteristic should always be matched to the connected equipment and electrical circuit rather than assuming that the same curve is suitable for every application.\u003c\/p\u003e\n\u003ch2\u003eDouble Pole \/ 2P Configuration\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLive Electrical CN125B is a 2 pole device\u003c\/strong\u003e, designed for the compatible double pole arrangement used within the Live Electrical SRN consumer unit system.\u003c\/p\u003e\n\u003cp\u003eIts double pole configuration distinguishes it from conventional single-pole MCBs and makes correct consumer unit and busbar compatibility especially important.\u003c\/p\u003e\n\u003cp\u003eWhen adding or replacing a device within an SRN consumer unit, the exact protective device configuration should be checked before installation.\u003c\/p\u003e\n\u003ch2\u003eBi-Directional MCB\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCN125B is bi-directional\u003c\/strong\u003e, allowing current flow in either direction where required by the compatible electrical installation.\u003c\/p\u003e\n\u003cp\u003eBi-directional capability can be an important consideration in modern electrical distribution systems, particularly where the design of the installation requires protective devices approved for operation with power flow in either direction.\u003c\/p\u003e\n\u003cp\u003eThe bi-directional specification does not make the CN125B universally interchangeable with protective devices from other consumer unit ranges.\u003c\/p\u003e\n\u003ch2\u003eSpecifically for Live Electrical SRN Consumer Units\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCN125B is designed for Live Electrical SRN consumer units\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eProtective devices from different manufacturers or consumer unit ranges should not be assumed to be interchangeable simply because they have the same current rating, number of poles or similar physical dimensions.\u003c\/p\u003e\n\u003cp\u003eThe CN125B should therefore be paired with the appropriate \u003cstrong\u003eLive Electrical SRN consumer unit and compatible busbar arrangement\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eCompatible with SRN Double Pole Busbar Arrangements\u003c\/h2\u003e\n\u003cp\u003eThe device is designed for use with the appropriate \u003cstrong\u003eLive Electrical SRN double pole busbar system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis matched arrangement allows the protective device to integrate correctly with the intended consumer unit system.\u003c\/p\u003e\n\u003cp\u003eCustomers purchasing the CN125B as an additional or replacement MCB should therefore confirm that their existing board is a compatible Live Electrical SRN model.\u003c\/p\u003e\n\u003ch2\u003e6kA Fault Current Rating\u003c\/h2\u003e\n\u003cp\u003eThe CN125B has a stated \u003cstrong\u003e6kA fault current rating\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is an important characteristic when specifying a circuit protective device and should be considered alongside the prospective fault current and overall design of the electrical installation.\u003c\/p\u003e\n\u003ch2\u003e230V Rated\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLive Electrical CN125B is rated at 230V\u003c\/strong\u003e, making it suitable for its intended low-voltage circuit protection application within compatible SRN installations.\u003c\/p\u003e\n\u003cp\u003eThe voltage rating, fault current rating, circuit configuration and characteristics of the connected load should all be considered during specification.\u003c\/p\u003e\n\u003ch2\u003eMCB Overcurrent Protection\u003c\/h2\u003e\n\u003cp\u003eAs a \u003cstrong\u003eminiature circuit breaker\u003c\/strong\u003e, the CN125B is intended to provide overcurrent protection for an appropriately designed electrical circuit.\u003c\/p\u003e\n\u003cp\u003eIt is important to distinguish an MCB from an RCBO. The CN125B should not be described as providing 30mA residual-current protection unless that protection is provided separately elsewhere within the electrical installation.\u003c\/p\u003e\n\u003cp\u003eCorrect coordination with any RCD or other protective equipment within the consumer unit should therefore form part of the overall circuit design.\u003c\/p\u003e\n\u003ch2\u003eIdeal as a Compatible SRN Replacement or Additional MCB\u003c\/h2\u003e\n\u003cp\u003eThe CN125B is a useful option when adding an appropriately rated circuit to a compatible SRN consumer unit or replacing an existing compatible protective device.\u003c\/p\u003e\n\u003cp\u003eThe important consideration is not simply the \u003cstrong\u003e25A B Curve rating\u003c\/strong\u003e, but also compatibility with the Live Electrical SRN system and its double pole busbar arrangement.\u003c\/p\u003e\n\u003cp\u003eThis makes the full \u003cstrong\u003eCN125B product code\u003c\/strong\u003e important when identifying and ordering the correct replacement.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Live Electrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Code:\u003c\/strong\u003e CN125B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Miniature Circuit Breaker (MCB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries Compatibility:\u003c\/strong\u003e Live Electrical SRN Consumer Units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 25A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTripping Curve:\u003c\/strong\u003e B Curve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 2P \/ Double Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirectionality:\u003c\/strong\u003e Bi-Directional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Current Rating:\u003c\/strong\u003e 6kA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 230V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBusbar Compatibility:\u003c\/strong\u003e Compatible Live Electrical SRN Busbar Arrangement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Circuit Overcurrent Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsumer Unit Compatibility:\u003c\/strong\u003e Live Electrical SRN Consumer Units Only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant Compatibility Information\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLive Electrical CN125B is intended for compatible Live Electrical SRN consumer units and busbar arrangements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt should not be treated as a universal 25A MCB for installation in consumer units from other manufacturers or unrelated Live Electrical ranges.\u003c\/p\u003e\n\u003cp\u003eBefore purchasing the device as an addition or replacement, check the existing consumer unit model, busbar configuration and required protective-device specification.\u003c\/p\u003e\n\u003ch2\u003eSuitable Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLive Electrical SRN Consumer Units\u003c\/li\u003e\n\u003cli\u003eCompatible Live Electrical SRN Distribution Equipment\u003c\/li\u003e\n\u003cli\u003eCompatible Double Pole Busbar Arrangements\u003c\/li\u003e\n\u003cli\u003eAppropriately Designed 25A Circuits\u003c\/li\u003e\n\u003cli\u003eDomestic Electrical Installations\u003c\/li\u003e\n\u003cli\u003eResidential Electrical Distribution\u003c\/li\u003e\n\u003cli\u003eNew-Build Electrical Installations\u003c\/li\u003e\n\u003cli\u003eConsumer Unit Upgrades\u003c\/li\u003e\n\u003cli\u003eReplacement SRN Protective Devices\u003c\/li\u003e\n\u003cli\u003eAdditional SRN Consumer Unit Circuits\u003c\/li\u003e\n\u003cli\u003eAppropriate Commercial Electrical Installations\u003c\/li\u003e\n\u003cli\u003eCircuits Requiring a 25A B Curve MCB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Live Electrical CN125B?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLive Electrical CN125B\u003c\/strong\u003e provides a purpose-designed solution when a \u003cstrong\u003e25A B Curve double pole bi-directional MCB\u003c\/strong\u003e is required for a compatible Live Electrical SRN consumer unit.\u003c\/p\u003e\n\u003cp\u003eIts \u003cstrong\u003e25A current rating and B Curve characteristic\u003c\/strong\u003e make it suitable for appropriately designed circuits requiring these protection characteristics, while the \u003cstrong\u003e2P configuration\u003c\/strong\u003e matches the compatible double pole SRN arrangement.\u003c\/p\u003e\n\u003cp\u003eThe device is also \u003cstrong\u003ebi-directional\u003c\/strong\u003e, allowing current flow in either direction where required by the design of the compatible installation.\u003c\/p\u003e\n\u003cp\u003eWith a \u003cstrong\u003e6kA fault current rating and 230V rating\u003c\/strong\u003e, the CN125B provides the key electrical characteristics required for its intended application.\u003c\/p\u003e\n\u003cp\u003eMost importantly, it is specifically intended for the \u003cstrong\u003eLive Electrical SRN consumer unit system\u003c\/strong\u003e, helping installers and customers identify the correct MCB rather than relying on a superficially similar device from another consumer unit range.\u003c\/p\u003e\n\u003cp\u003eFor compatible SRN installations requiring a \u003cstrong\u003e25A double pole B Curve bi-directional MCB\u003c\/strong\u003e, the Live Electrical CN125B provides the appropriate solution.\u003c\/p\u003e","brand":"Live Electrical","offers":[{"title":"Default Title","offer_id":54763105059162,"sku":"CN125B","price":7.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/6232\/6106\/files\/Live_Electrical_CN106B_6A_B_Curve_2P_Bi-Directional_MCB.webp?v=1789049291","url":"https:\/\/account.alertelectrical.com\/products\/live-electrical-cn125b-25a-b-curve-double-pole-bi-directional-mcb-for-srn-consumer-units","provider":"Alert Electrical","version":"1.0","type":"link"}