supply, installation & commissioning of mccb distributiion box completeset single door dust proof made of 14/16 swg crca sheet steel enclosure withfollowing spares. 1. mccb 3 pole 250 amp. breaking capacity 36 ka - 01 no. 2. mccb 3 pole63 amp. breaking capacity 25 ka - 03 nos. 3. mccb 3 pole 32 amp. breaking capacity 25 ka -03 nos. hsn code - 8537, make - hpl, siemens, abb.