As far as I know there are no examples of electric locomotives in 0 gauge.

Listed below are the few examples of EMU's produce by Exley (old under their own name and Bassett-Lowke), the Leed Model Company (LMC) and Ace (reproductions).

TOPS	ActualNumber	Name	Description	Livery	Manufacturer	CatalogueNumber	YearsofManufacture
??	????	None	Portsmouth 2-car set	SR Green	Exley	Unknown	1953 - 1960?
??	????	None	Portsmouth 3-car set	SR Green	Bassett-Lowke (Exley)	Unknown	????
??	????	None	3-car set	SR Green	Bassett-Lowke	1457/0	1928
??	3064	None	4RES 2-car suburban set	SR Green	Exley	Unknown	1953 - 1960?
??	3064	None	4RES 3-car suburban set	SR Green	Bassett-Lowke (Exley)	Unknown	1953 - 1957
Pullman	Car 89 + Car 88	None	Brighton Belle	Brown and Cream	Leeds Model Company	CD/153	1935 - 1950
Unknown	1528 + 1664 + 1783	None	Motor 3rd + 1st class + Dummy Motor 3rd	SR Green	Ace	C1E/S	1999