Centre potted toroidal transformers

Centre potted transformers can be provided with a drilled central hole (normally 5 to 6 mm), or if the customer prefers, with a threaded hole (normally M3 to M6). In addition to the height of the transformer, approx. 2mm is required for the rubber pad (included).

Centre potted toroidal transformer
Centre potted toroidal transformer with rubber pad
Centre potted toroidal transformer with threaded hole

Standard specifications

The following table contains the default specifications for centre potted transformers. These are to be seen only as examples: we manufacture each transformer strictly according to customer specifications.

P [VA] Ø [mm] h [mm] m [Kg]
P [VA]20Ø [mm]60h [mm]30m [Kg]0,4
P [VA]35Ø [mm]70h [mm]37m [Kg]0,5
P [VA]50Ø [mm]75h [mm]38m [Kg]0,7
P [VA]60Ø [mm]80h [mm]39m [Kg]0,9
P [VA]80Ø [mm]90h [mm]33m [Kg]1,1
P [VA]100Ø [mm]92h [mm]38m [Kg]1,2
P [VA]150Ø [mm]94h [mm]46m [Kg]1,5
P [VA]200Ø [mm]115h [mm]43m [Kg]2,0
P [VA]250Ø [mm]116h [mm]50m [Kg]2,4
P [VA]300Ø [mm]117h [mm]58m [Kg]2,6
P [VA]400Ø [mm]131h [mm]59m [Kg]3,5
P [VA]500Ø [mm]133h [mm]69m [Kg]4,1
P [VA]600Ø [mm]136h [mm]73m [Kg]4,7
P [VA]800Ø [mm]160h [mm]59m [Kg]5,8
P [VA]1000Ø [mm]165h [mm]70m [Kg]7,1
P [VA]1500Ø [mm]180h [mm]78m [Kg]10,5

Examples are for 1 primary and 2 secondary coils. A larger number of secondary coils will lead to an increase in size!


Power rating limit

The power rating limit for centre potted transformers is 1500 VA.