This really nice N gauge train by Kato is 3023-2 a JR EF64 electric locomotive in blue & yellow JR Cargo test livery. It has running number EF64 1010. 

The Class EF64 (EF64形) is a 6-axle (Bo-Bo-Bo wheel arrangement) DC electric locomotive type operated on passenger and freight services in Japan since 1964.

The class was designed to replace the ageing EF16 class locomotives used on the steeply-graded Ou and Chuo mainlines in the early 1960s. Two prototype locomotives, EF64 1 and 2, were delivered in 1964, built by Toshiba and Kawasaki Sharyo respectively. The basic body design was based on that of the earlier Class EF62s but with the more usual Japanese Bo-Bo-Bo wheel arrangement. Livery from the start was all-over blue with just the lower cab ends painted cream.

Full production started in 1965, continuing to 1976 with loco EF64 79. Minor variations within the class included the discontinuation of the cab ventilation grilles above the marker lights from EF64 46 onward. Locos EF64 1 to 12 and EF64 29 to 55 were equipped with train-heating generators for passenger use, and are distinguishable by the train heating indicator lights next to the cab doors.

Nowadays, with the exception of a handful of locos owned by JR East/Central/West for charter and occasional passenger haulage, the subclass is divided evenly between Shiojiri and Aichi depots (JR Freight) at either end of the Chuo Line.

There is a major subclass of the EF64 class, called the EF64-1000, the first EF64-1000, EF64 1001, appeared in 1980 for use on the Joetsu Line, replacing ageing Class EF15/16 and EF58 locomotives. This subclass could almost be described as a totally new design. The body was lengthened from 17,900 mm to 18,600, and the bodysides were given an asymmetrical appearance with ventilation grilles at one end and windows at the other. PS22 scissors-type pantographs replaced the PS17 lozenge-type pantographs of the EF64-0s. The bogies were the same as used on Class EF81 locomotives. A total of 53 EF64-1000s were built by 1982, all by Kawasaki and Toyo Electric. 

Apart from a handful of locos owned by JR East and based at Takasaki and Nagaoka depots for use on sleeper and charter train haulage, the subclass is largely based at Takasaki for Joetsu Line freight duties. Locos EF64 1046 to 1050, however, are based at Okayama depot for use on Hakubi Line freight duties.

EF64 1030 and 1031, owned by JR East, both have EMU-couplers and jumper sockets, and these locos are frequently used for hauling new rolling stock from the Niitsu factory to Tokyo via the Jōetsu Line, and also for hauling withdrawn rolling stock to Nagano.

The loco is in good condition as you can see in the pictures, it is tested and runs well with working lights a complete external visual inspection has shown the overall condition is very good. The box is in good if slightly shelf worn condition. 

Overall this is a really nice scale locomotive and would look fantastic on a layout.

Do please have a look at my other listings, I typically have various HO and OO locos on offer as well as an extensive range of imported N gauge locos and other items. 

Note: I do recommend all locos are cleaned & serviced, as they have some age to them even if the quality looks at the highest level (fairly standard advice for all locos!).