Blue Sea Systems 300 Amp m-Series Battery Switches

We needed isolation switches for our campervan electrics and after a lot of research we found that these were the most highly regarded. They do cost a little more than the cheap replicas but are of much better quality and there is a reason that replicas are created of these in particular. Easy to install considering we are noobs but that is thanks to YouTube.

Excellent item, perfect for my motorhome.

Great quality, does the job!

I have purchase both Blue sea and so called cheap knock off. Firstly the plastic mouldings are either direct copies or they use the same toolset. The mouldings marks are all identical even down to the blemish’s in the moulds. The switch operation feels identical and measured contact resistances are actually higher (0.2ohms) on the Blue sea product. People mention better sealing in Blue Sea’s product, I can’t see any seals on either product. The Blue Sea’s product also arrived in bubble wrap, no box! no instructions, guarantee card or any literature. At twice the price of an equivalent non Blue Sea product I’d say be sure you’re getting your moneys worth.

キャンピングトレーラーのムーバーが頻繁に止まるようになったので、純正のスイッチから入れ替える目的で購入。結果、かなり改善しました。 おそらく接触抵抗が下がって、バッテリーの電圧降下が抑えられたのが要因と思われます。 元々マリン用という事もあり、振動や湿度などの耐久性にも期待しています。

Robusto e sicuro

Snelle levering product zoals beschreven

Showed up quick. East to install. Works as described.

Estoy rehaciendo la instalación eléctrica de mi autocaravana. Con los consumos que se están alcanzando gracias a las nuevas baterías de LiFePo4, tener un desconectador de calidad, no es un asunto menor, no estaba dispuesto a poner un elemento que tiene que cortar corrientes en DC de más de 100A, de marca genérica. Absolutamente recomendado, eso sí, pagas su precio.