Rockwell Automation 2364,2364E NRU DIODE REPLACEMENT - Manual (Page 4)

4 NRU Diode Replacement
Publication 2364E-5.11 - April 1998
10.
Figure 1
Removing the Lexan Holder from the Diode
Note: Before installing a diode, verify that the surfaces of the
heatsink do not have any burrs or sharp edges that may scratch
the pole faces of the diode. Polish heatsink surfaces as needed.
If your NRU is rated at: Then:
2500A DC or 3000A DC 1. Remove the diode along with its Lexan
holder.
2. Remove the Lexan holder from the
diode, as shown in Figure 1.
Otherwise Remove the diode.