if a ZW is pushed near its limit, then yes it will get hot. Running a dual motor 2333 and a single motor turbine, barely gets warm on the case after 1 hour running non stop. Now granted I am not pulling a sting of lighted passenger cars right now either. A ZW in good condition with good or newly replaced rollers on the big handles is hard to beat price wise right now. Watch facebook market place, seen several locally for really good prices. They are not that hard to work on and rarely need more than a cord. Yes if you run newer engines that have sound boards, you must be carefull as the circuit breaker isnt fast enough if the engine eats it and shorts out. That said, I have never in all my years burned up older railsounds board, RS2.5 and older, running on a bone stock ZW with no extra protection and I had plenty of derailments back on that old layout. Older postwar, no worries. If you need bell control, Lionel offered a seperate button to wire in to give that option. Mike the Aspie
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