Blue Sea SystemsA-Series Toggle Single Pole Circuit Breakers

This is exactly what replaces the switch under the rear compartment in a 1999 Ranger 518vx and, I assume, other makes and models.It bolted right in and works great.

Everyone loves a good circuit breaker. They remind me of the times when I'd go into my grandfather's basement and gaze at the 200A load center and dream about the day that I'd finally own my own home, and have a basement to store liquor and special magazines. Every once in a while his old air compressor would overload a breaker and I'd have to go down there to reset it, ever so carefully with a push to the left, then another push to the right. Those were the days. My pals Jimmy Emery and Steve Braddock would sneak down and turn off the breaker to my grandmother's refrigerator. Her job was to make a home and cook dinner for the men, like a proper woman should, and when her pies spoiled, she'd get awful cross, but since she was just a lady, she couldn't figure how to get to fixin' so she'd get right sore and steam off to the Sears for new equipment thinking she'd trade a cow or some such. See, my father knew old Bill Stevensen from Northstar Financial and they'd get to chattin about women and cards and money and how to find a new refrigerator. But all along it was just me foolin' with those old breakers.

Perfect replacement for a circuit breaker fitted on a SUNRAY boat

Perfect

I used these to completely rewire and build a custom panel for my '87 260 Sundancer. Was exactly what I needed and performed perfectly in short-circuit testing! These are a standard marine/rv size breaker that fit in all marine panels, so the other misinformed reviewer complaining about them being small clearly has never seen a marine breaker and probably should have read the description better. They're a little pricey if you have a large panel but they're a trustworthy brand and you should only have to buy them once! I wish they sold their double breakers on Amazon though, I had to buy one of theirs from another website for my main breaker.

Perfect fit. Spot on

This is an awesome switchable circuit breaker. The switch allows me to turn on/off an inverter that I can not access the built in switch. The breaker holds its rated 50 amps for as long as I have run that much power through it. It will trip as designed at 60 amps. I tested that multiple times. Much better than some of the no-name circuit breakers that did not trip at all, in an over amperage scenario.

Great little product, although it didn't come with mounting screws. Not even sure what size they're supposed to be. Neither the panel not the breakers have mounting screws. Where do I get them and what is the size and description?