The monoblock is a simple and cost effective LV termination for use up to 1.1kV and 4 000A. The monoblocks are designed in accordance with EN50336, this is an updated version of the historical standards BS2562. All bushings manufactured by BTRAC also comply with IEC 60137. According to the standards we can offer 4 current ratings 1 700A, 2 500A, 3 150A and 4 000A, all these monoblocks fit on a standard "F" flange facing.