{"product_id":"blue-sea-systems-e-series-on-off-battery-switch-350a-compact-ignition-protected-marine","title":"Blue Sea Systems e-Series On\/Off Battery Switch 350A Compact Ignition-Protected Marine","description":"\u003cp\u003e\u003cstrong\u003eBlue Sea Systems e-Series 350A On\/Off Battery Switch is a compact, ignition-protected manually operated switch that isolates a single battery bank for safe maintenance, storage, and reliable power control on boats.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for marine electrical systems that need straightforward on\/off control, this 350 amp e-Series switch from Blue Sea Systems delivers a durable, low-resistance connection in a small footprint. It’s designed to accept multiple cable terminations on tin-plated copper studs, can be mounted on a surface or rear panel, and is ignition protected for gasoline engine spaces. The textured knob and face let you operate the switch by feel when lighting is poor.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this switch simplify battery isolation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eThe e-Series switch gives a single robust means to disconnect a battery bank so you can safely work on wiring or store the vessel without parasitic drains. Turning the knob to OFF isolates loads quickly and prevents unintended power draw or battery discharge.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-circuit ON\/OFF control for one battery bank\u003c\/li\u003e\n\u003cli\u003eQuick isolation for safe maintenance or winter storage\u003c\/li\u003e\n\u003cli\u003eReduces parasitic drain when the boat is unattended\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes this model suitable for cramped engine rooms?\u003c\/h3\u003e\n\u003cp\u003eThe 350A e-Series is intentionally compact, letting you install it where space is limited. Flexible mounting options—surface or rear panel—mean you can position it for the best cable routing and accessibility even in tight compartments.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmall footprint for tight installations\u003c\/li\u003e\n\u003cli\u003eSurface or rear panel mounting for flexible placement\u003c\/li\u003e\n\u003cli\u003eTextured knob for tactile operation when visibility is low\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow reliable are the electrical connections and terminals?\u003c\/h3\u003e\n\u003cp\u003eTerminals use tin-plated copper studs that accept multiple cable connections while providing secure, low-resistance contact. The design supports high-torque connections and preserves conductivity in marine environments when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTin-plated copper studs for corrosion resistance and conductivity\u003c\/li\u003e\n\u003cli\u003eMultiple cable acceptance for parallel wiring or added grounding\u003c\/li\u003e\n\u003cli\u003eHigh-torque secure fastening to maintain low-resistance contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this switch safe to use near gasoline engines or alternators?\u003c\/h3\u003e\n\u003cp\u003eThe e-Series 350A is ignition protected, making it suitable for mounting in gasoline engine spaces where spark suppression is required. Note that this specific model does not include an alternator field disconnect; if alternator control is required choose a model that provides that feature.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIgnition-protected for safe use in gasoline engine compartments\u003c\/li\u003e\n\u003cli\u003eNot equipped with alternator field disconnect functionality\u003c\/li\u003e\n\u003cli\u003eIdeal for systems that only need simple manual isolation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Blue Sea Systems e-Series 350A On\/Off Battery Switch is aimed at boat owners, marine electricians, and DIY installers who need a dependable, space-saving means to isolate a single battery bank. It’s a strong fit for powerboats, sailboats, and small commercial craft requiring a rugged manual disconnect without alternator field control.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this model disconnect the alternator field?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The 350A e-Series On\/Off switch does not include an alternator field disconnect; choose a different model for alternator control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I mount it in a gasoline engine compartment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The switch is ignition protected and suitable for gasoline engine spaces when installed per instructions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":59357276701020,"sku":"B000MMC914","price":56.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5604\/9244\/files\/blue-sea-e-series-front.jpg?v=1791174642","url":"https:\/\/sportium.co.uk\/products\/blue-sea-systems-e-series-on-off-battery-switch-350a-compact-ignition-protected-marine","provider":"Sportium Sports And Outdoors","version":"1.0","type":"link"}