Vmax Power Controls Pvt Ltd supplies Low Voltage Bus Duct. Vmax Power Controls Pvt Ltd is an ISO 9001: 2000 accredited company. The Low Voltage Bus Duct is primarily used for connection between the Transformer and Switch gear. The Bus Duct is available in ratings ranging from 800A to 3200A and 4000S and is available with Moulded Steel and non-magnetic enclosures.