Eaton 9SX Series Manual page 62

6.
Take the MBP to the rail kit and push backwards; secure to the cabinet
posts with 4pcs M5 screws + washers (as below).

Tower mount:
1. Place the MBP on the left side of the UPS and align it with the front panel of
the UPS module.
2. Take out the 'tower feet' from the accessory of the UPS, lock one to the
MBP and the other to the EBM (as shown below):
57