According to IEC 60641-3-1 Type B 5.1

Characteristic features

100 % Electrical grade Sulphate Pulp
Natural –coloured
Made of Umang Transformers Board and Paper
High Purity and oil absorption
Insulation class A ( 105ºC)
Good compatibility with liquid dielectrics strength
One side BL/U coated or uncoated


Insulation of cooling channels in Power Transformers


Umang Clackband is available in the following shapes: -


UMANG CLACKBAND HD  4           Trapezoid strips (V-Strips)

UMANG CLACKBAND HD 3            Rectangular strips



Technical specficaton