$210 difference

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BillyK

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Jan 24, 2010
502
Catalina 310 Ocean City, NJ
ok.. so help me understand why this is $220

http://www.defender.com/product.jsp?path=-1|328|303333|1330042&id=1329856

and this one is $10

http://www.goodluckbuy.com/lw28-20-...h-combined-switch-rotary-switch-20a-380v.html

and then there is this one at $60

http://www.sourcingmap.com/380v-63a-terminal-onoffon-rotary-universal-cam-switch-p-154427.html

i get that the $10 switch is 20amps (plenty for what i need) and the more expensive one is 65amps. But is that enough to be $210 apart in price?

if i bought the $10 switch should i worry about it catching on fire?
 
Dec 2, 1999
15,184
Hunter Vision-36 Rio Vista, CA.
http://en.wikipedia.org/wiki/Caveat_emptor

If it looks too good to be true it probably is.

20 amp vs 65 amp?

Fire is a really bad thing, put it on a boat a few miles from shore and it is even worse. Have you ever seen a boat burn to the waterline? I have! It did not take 10 minutes.
 
Nov 6, 2006
10,219
Hunter 34 Mandeville Louisiana
Couple of things.. The $10 one does not list a UL label.. it does have some European ISO numbers and CE numbers.. I don't know what those mean.. Based on the specifications I see, I wouldn't hesitate to use the $10 one as long as your loads are less..and you occasionally check it for heat when loads are high.. Note that the $10 one says it can occasionally handle 63 amperes .. The $60 one has the same power rating as the $230 one.. hence higher price.. The $230 one has the cool panel that is dedicated to only marine use because it says "shore" and "Gen" .. makes their market very small comparatively.. and drives up the cost.. it is also UL listed which is expensive..
These are made to switch under high loads and voltages without arc welding themselves closed or open... gets complicated a bit more than normal switches.. If ya switch with the loads off, and you are limited to 120V, their job is much easier ..
 

BillyK

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Jan 24, 2010
502
Catalina 310 Ocean City, NJ
I had ordered the $10 one a few months back and was just thinking about it since it was about to install it and For $10 I took it apart and it's about as simple as it gets. Just a cam and two spring pressed connectors that the cam either opens or allows to close. Looks safe and capable even at $10. It's hard for me to imagine how an extra $200 would make it much different or safer..
 
May 24, 2004
7,215
CC 30 South Florida
It is not the function of a switch to prevent fires, that is function of the circuit breaker. Marine component manufacturer look up existing industrial fixtures and modify them by adding a marine looking adornment. Yes that shore/gen plate will cost you $150. Here in the US 30A 120V shorepower service is the industry standart so the 20A switch may have limited use. Go up to the $60 switch which for use with 120V and loads under 30A should be fine. These high end marine fixtures do not provide full specs to make it difficult for the buyer to trace them back to their industrial counterpart.
 

kenn

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Apr 18, 2009
1,271
CL Sandpiper 565 Toronto
It's no secret that there's a markup added when the word "marine" is stuck in front of a product name, but sometimes there's good reason for that too.

You haven't stated your intended use. I'll assume you want an AC source selector switch to be used at 120 VAC.

First, let's compare apples with apples only, so the 20A switch is not a valid competitor with the Blue Sea switch. So. we're left with the two 60A units, one at $229, one at $43. This spread is more typical if you're comparing a name-brand product at retail vs a knockoff purchased via an offshore 'backchannel'.

Without having both on my desk I cannot make an absolute determination, but I will tell you what I've observed in similar circumstances. (I was in electronics for 22 years, apprenticed with a marine mechanic, and I have ABYC Certification in marine electrical)

Blue Sea has a pretty good reputation in the marine industry. If a product is in their lineup, it's generally been sourced from a quality manufacturer, and it's well-suited for the application. I would say that you can't go wrong with one of their products. At the same time, the product is only sold through marine retail channels, which means you're paying a couple of markups (OEM, Blue Sea, distributor, retailer).

The other switch - well it's no secret that many successful products are copied or outright counterfeited by some offshore manufacturers. The quality of the knock-off can be quite comparable... or it can be shockingly inferior. In general, a good knock-off is usually adequate, though 'cruder' overall, and it's long-term survival and performance is not as safe a bet as the 'original'.

What do I do? I confess to a shameless personal infatuation with surplus, used and other channels, and if I can satisfy myself that something inexpensive will work well enough I might use it. ON MY boat. It's part of my hobby. If I'm working on YOUR boat, I won't use anything but a proven product, with a good company behind it. If you're paying a not inconsiderable labour rate, it doesn't make sense to cheap out on the parts. Also - my liability, long-term reliability (no angry callbacks), customer confidence in me, and enhanced resale of the boat are all factors.

So... still reading? ;) Myself, if the cheaper one has a traceable certification and is not a counterfeit, I would risk the lower price to buy one or two of the offshore units, and i would examine and test them. if they suck and I am convinced that they're not up to the job, I'm only out the $60 or whatever.

Caveat Emptor, in other words (as you've already been advised)
 
Mar 6, 2008
1,499
Catalina 1999 C36 MKII #1787 Coyote Point Marina, CA.
Is spark and explosion on a boat a factor that the expensive one can control? Is the expensive one encased in an inert gas so there is no explosion during switching? We need more specs.
 
Jun 6, 2006
6,990
currently boatless wishing Harrington Harbor North, MD
It probably is not designed for the marine environs and will rust, cause the connections to get hot......... and not last as long.
 
Apr 22, 2009
342
Pearson P-31 Quantico
It's really a matter of faith.

Note the title of my reply and keep that in the back of your mind, please.

So, BillyK asked us to help him understand why this switch (follow the URL)

http://www.defender.com/product.jsp?path=-1|328|303333|1330042&id=1329856

is $220 and the other switch (again, follow the URL)

http://www.goodluckbuy.com/lw28-20-...h-combined-switch-rotary-switch-20a-380v.html

is $10. I say, it all comes down to your faith.


While knowledge is good, man is not all knowing and thus is, well, not perfect. Sure, we see the positive relationship between throughput and costs, as well as materials, such as bakelite and brass, or plastic and zinc. Sure, we all know about supply and demand, and some may even remember something called the elasticiity of supply and what that does with price. But we are not all knowing. Turn you eyes to heaven for a moment and think about that.

I will tell you, what you don't know, you have to fill in with FAITH (and give me an "amen" for bringing this up).

Now, if you will imagine yourselves closing your eyes and thinking of the frontage of a sailboat and how you might see in that, a church. The hull of the boat may be the hall of the chuch. The mast and sail, climbing up as the roof does for the steeple.

Regarding the switch, heck, even the price that you pay for switch may be like the offering we toss into the plate. Some of us will be happy to give $10, but others, by guilt or by golly will pony up the 200 plus bucks without batting an eye. So, you really need to ask about your faith (and give me another amen).

Ask yourself, are you the $220 man? Do you sit in your place of worship but daydream about the waters? Would you leave a service early because the temperature is nice but the winds are even nicer? Would you jump aboard your boat and with your eyes looking into the heavens never give a second thought to an avenging lord as you run the switch, brrrrack, from shore to two and brrrrrrrrack, on or off again?

Or are you a $10 man? Do you sit in your place of worship but daydream about the waters? Would you TOO leave a service early because the temperature is nice but the winds are even nicer? Would you jump aboard your boat and with your eyes looking into the heavens never give a second thought as you place your hand on the plastic actuator, sliding the zinc on zinc contacts over each other, arcing the electrons vvzzbrrrrack, from shore to two and vvzzbrrrrack, on or off again?

So I cannot say who is better, but I imagine the $220 man decades from now might kneel by his bedside and wonder how he will explain all those times his skip church to go sailing.

But then I think about the $10 man, his eyes growing wide in disbelief, never quite fully understanding that he is trapped by his own freewill in a paradox of a moment so wrong but brought so rightfully to a flashpoint and as its consequence, his boat, its contents, and for a few hundreth of a second (and no more if His mercy favors him, say amen, again), what was him, are blown to hell in a fiery arc-induced, vapor-fueled explosion.

Let us have an appropriate moment of silence . . . now say, amen . . . .

I am but a simple man myself. I always think that I should leave final judgements up to "Him," if you understand my meaning here. Still, I wounder, who would YOU rather be? Would you want to be the man who trying to explain that he really is "sort'a sorry" for skipping no fewer that dozens on dozens of services or the one who has to say, "Gosh, I really am sorry I bought that cheap switch?"
 
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Jul 28, 2010
914
Boston Whaler Montauk New Orleans
And if you're into omens, the site of the cheaper one is "Good Luck Buy." Do you feel lucky?
 
Feb 20, 2011
8,062
Island Packet 35 Tucson, AZ/San Carlos, MX
Usually, “the bitter taste of poor quality remains much longer than the sweet taste of a low price.” So it's good to see you're doing your homework!

Sport-specific merchandise prices are always going to be a shocker.
 
Dec 30, 2009
680
jeanneau 38 gin fizz sloop Summer- Keyport Yacht Club, Raritan Bay, NJ, Winter Viking Marina Verplanck, NY
Billy, I am not sure about this particular switch, however, b-4 I buy anything I check Jamestown Distributers, RI. I have been pretty much completely re fitting my, boat in the last 2 years, (never ending), I order something prices are usually one of the best, if I order on a tuesday, I have it on my porch thursday, also for $39.00 I joined their I think they call gold club, all shipping is free. Because I am out of state no sales tax, all the operators are friendly and very knowageable.. I spend way too much there..... Red
 
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