We have been manufacturing ISI marked MCB's for more than a decade. We at SIGMA have always endeavoured to set very high standards of manufacturing and quality in our products.
We are pleased to share with you the acheivement of house of SIGMA. Our MCB's now confirms to latest IS and IEC specification. You must be aware that there has been change in the ISI specifications. The original specifications IS-8828-1978 has been replaced with IS 8828 -1996 which is in line with the latest international specifications IEC 898. the changed specification is very stringent and has been implemented by BIS. We have been granted ISI certification and are marketing our complete range of MCBs as per latest IS 8828-1996. This includes all the ratings from 6A to 40A in SP, SPN & DP, TP & TPN versions.
