Model 9 T18 Y1071 G07 is an accessory wall-mount bracket kit for Transformer model #'s 9 T10 A1002 and 9 T10 A1003 . Field installed item to convert transformer to wall mount application. ABB low voltage dry type transformers are designed to give you what you want, when you want it. These transformers have outward facing feet for faster installation, easy off front and back panel for rapid service access, and ground and lug kits included on most units up to 150 kVA; more value for your money. All general purpose transformers are as quiet, or quieter than required by NEMA ST-20 . Average sound levels are warranted not to exceed the values listed for each load rating shown in the below table. Sound characteristics vary between transformers of identical voltage and kVA rating. The range of variation may be 4 to 8 decibels. Material: Aluminum.