Narva Automotive/Marine Battery Master / Isolation Switch (Contacts Rated 300A @ 12V) - 61044BL - Narva | Repco New Zealand
Durite Marine Battery Isolator Switch - 300A Durite Marine Battery Isolator Switch 0-605-11 [ALM Part Reference - 0-605-11] - £20.69 : ALM Solutions, Auto Electrical Parts and Accessories for Cars, Boats, Caravans and Campers
Surface Mount Marine Battery Isolator Switch 550A 48V [ALM Part Reference - 0-605-12] - £58.47 : ALM Solutions, Auto Electrical Parts and Accessories for Cars, Boats, Caravans and Campers