{"product_id":"blue-sea-30a-a-series-double-pole-toggle-circuit-breaker-black","title":"Blue Sea 30A A-Series Double Pole Toggle Circuit Breaker - Black","description":"\u003ch2\u003eReliable AC Main Circuit Protection and Switching for Demanding Electrical Panels\u003c\/h2\u003e\n\u003cp\u003eManaging AC main power in marine vessels, motorhomes, and off-grid installations requires components that deliver consistent, fault-tolerant performance. The \u003cstrong\u003eBlue Sea A-Series 30A Double-Pole Toggle Circuit Breaker\u003c\/strong\u003e (BS-7237B) integrates heavy-duty circuit protection and manual switching into a single, compact panel-mount device. By eliminating the need for separate switches and fuse holders, this unit simplifies panel layouts while reducing the number of potential failure points in your electrical system.\u003c\/p\u003e\n\u003cp\u003eSpecifically engineered for AC main circuit applications, the double-pole configuration switches both active and neutral lines simultaneously. A mechanical common trip link bar connects the two black toggles, ensuring that if an overcurrent event occurs on either pole, both circuits disconnect immediately. This simultaneous disconnection is a critical safety requirement for marine shore power, onboard generators, and inverter distribution panels where isolating the entire AC feed is necessary to protect both equipment and personnel.\u003c\/p\u003e\n\n\u003ch3\u003ePrecision Magnetic Hydraulic Technology\u003c\/h3\u003e\n\u003cp\u003eUnlike standard thermal circuit breakers that rely on heat-sensitive bimetallic strips, the Blue Sea A-Series utilises a precision \u003cstrong\u003emagnetic hydraulic trip mechanism\u003c\/strong\u003e. Standard thermal units can suffer from nuisance tripping when installed in hot engine rooms, enclosed electrical cabinets, or warm Australian climates, as elevated ambient temperatures prematurely affect their trip threshold.\u003c\/p\u003e\n\u003cp\u003eIn contrast, a magnetic hydraulic breaker senses only the actual current flowing through the coil. Its trip point remains stable across a wide operating temperature range, while a fluid-damped delay mechanism tolerates temporary, harmless inrush currents typical of starting AC appliances or inductive loads. When a genuine sustained overload or short circuit occurs, the breaker responds rapidly to isolate the fault.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Technical Advantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Function Design:\u003c\/strong\u003e Combines dependable overcurrent protection and durable manual ON\/OFF switching in one integrated unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Trip Double-Pole Configuration:\u003c\/strong\u003e Linked toggle actuators ensure both poles trip together if a fault is detected on either line, making it suitable for AC main feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip-Free Safety Mechanism:\u003c\/strong\u003e Internal actuation is mechanically independent of the toggle lever, meaning the breaker cannot be manually held in the ON position during an active fault current condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Hydraulic Operation:\u003c\/strong\u003e Delivers consistent 30A trip performance without derating due to high ambient enclosure temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Panel Mounting:\u003c\/strong\u003e Equipped with threaded brass mounting inserts for secure, vibration-resistant front-panel installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Global Compliance:\u003c\/strong\u003e Meets ABYC standards and holds UL 1077 recognition alongside TUV, CE, and CSA certifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuilt for Safety and International Standards\u003c\/h3\u003e\n\u003cp\u003eIn high-vibration and moisture-prone environments like boats and off-road RVs, electrical safety relies on robust mechanical engineering. The \u003cstrong\u003etrip-free design\u003c\/strong\u003e is an essential safeguard that prevents operators from accidentally or intentionally overriding a trip event by holding or taping the toggle switch closed while a short circuit or overload persists. Clear 30A current rating markings on the actuator face allow for quick visual verification during panel assembly and maintenance inspections.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the BS-7237B meets strict international regulatory benchmarks, including \u003cstrong\u003eABYC (American Boat and Yacht Council)\u003c\/strong\u003e requirements for marine electrical systems. With UL 1077, TUV, CE, and CSA credentials clearly displayed on the side housing, electrical installers and system builders can specify this component with confidence for compliant domestic or commercial builds.\u003c\/p\u003e\n\n\u003ch3\u003eUpgrade Your AC Distribution Panel\u003c\/h3\u003e\n\u003cp\u003eWhether you are fitting out a new marine switchboard, upgrading a caravan shore power inlet, or building an off-grid AC distribution enclosure, the Blue Sea A-Series 30A Double-Pole Circuit Breaker provides dependable main circuit isolation. Add the BS-7237B to your system specifications today to ensure safe, compliant, and temperature-stable circuit protection.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631612362813,"sku":"BS-7237B","price":77.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-30a-double-pole-toggle-circuit-breaker-bs-7237b.png?v=1792905087","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-30a-a-series-double-pole-toggle-circuit-breaker-black","provider":"Solar 4 RVs","version":"1.0","type":"link"}