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If you have the later version with the power selector switch, set it 180 watts and you should be ok.

 

If it's the early version with no power selector switch, it's only capable of 135watts or 7.5amps. It would be possible to pull too many amps through it, and most likely damage it. I would put a fastblow fuse between the ZW and the powerhouse at 6-7amps if it is the early model.

I use 3 PW ZW's for power and 3 of the 5 loops have powermasters in-line. Each loop has a 10amp fast blow fuse to protect the engines from any type of derailment, etc. Bought the fuses from All Electronics with the help from someone here on this forum. Bought a hundred for 12 cents each with shipping at $7- 100 cost me $19 or 19 cents still cheaper than Radio Shack at 5 for $2.50. 

My other 2 loops have TPC wired inline there so I can run any 3 rail engines in conventional mode with a cab-1 or Legacy remote.

 

Fred- any other questions- give me a shout.

Thanks. 

Originally Posted by Ted Bertiger:

Hi Moonman,

I believe mine are the older ones with no switch so one side of a ZW is half of 250 and 275 watts. Been using them for years with no issues.

Ted, I am fairly sure the ZWs have only one secondary winding with 4 taps for the 4 handles. Each one is capable of the full power rating of the ZW, ie 250-275 nominal, 180 continuous.

 

Pete

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