BuffaloBill Posted June 20, 2012 Share Posted June 20, 2012 Tecky question for the electricians out there. We have a Waeco CR65 which I fitted earlier this year and now wish to fit a 230v rectifier for shorepower. The question is, there are 2 available, a MPS35 and an EPS100 which appear, upon reading the spec sheets for each, will do the job. Waeco recommend the MPS35 which costs around £63 on Ebay. But also the spec sheet for the EPS100 also says it's suitable for the same job but only costs around £40 on Ebay. On our last boat, we had a Waeco CR110 which had the EPS100 fitted and seemed to work ok but again the spec sheet says fit the MPS35! Both use the same Danfoss compressor. So, can anyone enlighten me to the difference and which to fit please. Quote Link to comment Share on other sites More sharing options...
diesel falcon Posted June 20, 2012 Share Posted June 20, 2012 Why bother?? if the fridge is wired to the 12v system, and this has a charger on it surly the charger will run the fridge whilst on sure power? i know mine does. Quote Link to comment Share on other sites More sharing options...
MBA Marine Posted June 20, 2012 Share Posted June 20, 2012 Why bother?? if the fridge is wired to the 12v system, and this has a charger on it surly the charger will run the fridge whilst on sure power? i know mine does. I 2nd the notion. Quote Link to comment Share on other sites More sharing options...
Antares_9 Posted June 20, 2012 Share Posted June 20, 2012 That's three of us. Quote Link to comment Share on other sites More sharing options...
Happy Jax 3 Posted June 20, 2012 Share Posted June 20, 2012 Make that 4 for luck!! Quote Link to comment Share on other sites More sharing options...
BuffaloBill Posted June 21, 2012 Author Share Posted June 21, 2012 Dear oh dear! You all want the easy life don't you! Ok, the reason for the rectifier. I want to be able to switch off all the batteries as per normal, which leaves the bilge pump on, and be able to leave the fridge on so we can leave stuff in it for a week or two without having the charger running. As there is always the risk of the charger boiling batteries when something goes wrong, it could be a very expensive way to go, and not unheard of, and £40/£70 seems a much cheaper way to go in that light. The charger is a Pro Mariner EX 25 by-the-way and only charges the leisure batteries, the Victron charges the Inverter and engine batteries and is on as soon as the shorepower is plugged in. Quote Link to comment Share on other sites More sharing options...
MBA Marine Posted June 21, 2012 Share Posted June 21, 2012 A charger that sences the batteries and keeps them in a float status will not boil the batteries and is fine to be left on. safer that way than a burst pipe on the engine intake that you forgot to close followed by the flattened battery from the bilge pump. Quote Link to comment Share on other sites More sharing options...
Jim Posted June 21, 2012 Share Posted June 21, 2012 Hi Bill (again) nice to see you today and SWMBO is well chuffed with the new digi antenna. Seems quite a few of us have Waeco fridge units and I'm certain they all auto sense whether the supply is 12vDC of 240 volt AC. I'd run it on shore power when away from the boat but if you do want a 240/12volt power converter, Maplin supply a fan cooled version for not too many pennies and because the Waeco units draw very low current, you would be well inside the tolerances of the Maplin converter. We have one on board if you want to try it out as I doubt whether we will be using it much in the future (we had one of those old coolboxes that was useless and drew 5 amps) Quote Link to comment Share on other sites More sharing options...
BuffaloBill Posted June 21, 2012 Author Share Posted June 21, 2012 Likewise JIm. Any chance of a link to the maplin site where that unit is? Then I can at least take a butchers at it first. Quote Link to comment Share on other sites More sharing options...
Jim Posted June 21, 2012 Share Posted June 21, 2012 Hi Bill, I will look it up first thing tomorrow Quote Link to comment Share on other sites More sharing options...
Jim Posted June 25, 2012 Share Posted June 25, 2012 Hi Bill, I can't find it on the Maplin site but that doesn't mean they have dropped it and more likely their search facility cna't locate it. I'll see if I can find the receipt for the one we bought in 2009. Quote Link to comment Share on other sites More sharing options...
BuffaloBill Posted June 25, 2012 Author Share Posted June 25, 2012 Thanks Jim. Had a look myself but can't decide which, if any, it could be! NO rush. Quote Link to comment Share on other sites More sharing options...
TeamElla Posted August 16, 2012 Share Posted August 16, 2012 Bill, If it helps you decide, the EPS-100W has the higher ouput capacity EPS-100W = 24 volt / 100 watt MPS35 = 24 volt / 75 watt The CR65 draws an avewrage of 40 watts (with a substantially higher surge at start up) Rgds, Steve Quote Link to comment Share on other sites More sharing options...
Antares_9 Posted August 16, 2012 Share Posted August 16, 2012 I knew Steve would know the best fridge solution, from a history of important sausage storage. Quote Link to comment Share on other sites More sharing options...
TeamElla Posted August 16, 2012 Share Posted August 16, 2012 Quote Link to comment Share on other sites More sharing options...
pks1702 Posted August 17, 2012 Share Posted August 17, 2012 Good to hear from you Steve. Hope you are well. Quote Link to comment Share on other sites More sharing options...
TeamElla Posted August 18, 2012 Share Posted August 18, 2012 Hi Perry, All o.k. here thanks. Boat o.k. too ....now! Best part of a year out of water resulted in dried out original (very old) wooden keel and leaking keel bolts, so we were slowly sinking when lowered back in. Superb help from St. Olaves Marina with multiple lifts at awkward times (while I fixed the keel problem) and engineering help from Chris (one of the marina owners) supplying and replacing a faulty seacock at little notice, and then bending double in the engine compartment to fit it. Even Rona from the office offered to lay under the boat with an adjustable spanner. I couldn't let her do that but I am hugely impressed with the enthusiastic and selfless service that I received from all at St. Olaves. Regards to all the Shotley crew, Steve Quote Link to comment Share on other sites More sharing options...
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