I 3K

I-3K is a satellite bus developed by Indian Space Research Organisation (ISRO), and marketed by Antrix Corporation. It is a standard bus for 3,000-kg class satellites; the 'I' in I-3K stands for INSAT, a group of communication satellites developed and launched by ISRO. The I-3K bus can supply DC power up to 6500 watts, and is suitable for satellites with lift-off mass in range of 3000-3400 kg.