For speed control of single-phase or three-phase fan motors by supply of stepped output voltage. Pairs of the 400-V version of type ELT can be used in Vee connection.


ELT – single-phase fan transformer

Primary:	230 V or 400 V
Secondary:	80/.../230 V (7 steps) or 140/.../400 V (5 steps)
Rated current:	max. 23 A
ELT_pages_52-53.pdf

DLT – three-phase fan transformer

Primary:	3x 400 V
Secondary:	3x 180/.../400 V (5 steps)
Rated current:	max. 24 A
DLT_pages_54-55.pdf