PDU main breaker

The PDU Main Breaker turns off power to system components other than the Magnet Rundown Unit, cryogen compressor, scan room lights, chillers and magnet cryogen monitor. Typically, service uses this power off switch and the MR customer does not use it.

Table 1. Image legend

#	Description
1	ISC cabinet
2	Main Breaker in On position, fully horizontal.