A simple single pole switch, with a high current rating. I used this to isolate the switch panel for all domestic battery items, so that I can easily switch off everything that should be off when the boat is unattended, and on again when I return. 100A is overkill but that's not a problem.

Switch was just the correct size for my customers boat bridge instruments isolation with out him have to go into his engine room and isolate his batteries when he left the boat during short periods during the day, Fits & works very well.

Nice looking isolator and works well enough although the mechanism does feel very weak. While this isolator was for a friend I will not use it for a paying customer.

Great isolation switch for isolating my campers leisure battery, really discreet, solid and well made and as always a great price and fast delivery too

So handy being able to completely isolate the power from the battery with this easy switch. Easy to use and handy to have!

This one actually works. I use this on my portable power pack. it has replaced several of the cheap removable red key type isolation switches all of which failed within days. Good product!