Details Z-4000 Transformer If you want to max out your power potential the 400-watt Z-4000 is the most powerful transformer to receive the UL-Listing for the model railroading hobby. Low to High Price. Mth Electric Trains Z 4000 Transformer Jones Auction Realty 1998 Conventional or Command Control operators have chosen the Z-4000 transformer as their go-to transformer for nearly 20 years. Mth transformers z 4000 . MTH Z-4000--400 WATT POWERFUL DUAL CONTROL HOBBY TRANSFORMER IN BOX. Z-4000 requires a Remote Commander set to support remote throttle without DCS. Its physically large and only has two variable tap outputs. MTH Z-750 Hobby Transformer Like New in the Box Stock Number. Includes original owners manual. Summary of Contents for MTHTrains Z-4000 Page 1 MTH. Electric Trains is built for optimal maneuvering and control. The Z-4000 has two separate throttles to let you power two different tracks and it has two fixed power outputs you can use for operating acces...