Rockwell Automation 1502 Medium Voltage Contactor, 800A (Series D and E) - Manual (Page 49)

4-20 Maintenance
1502-UM051E-EN-P – June 2013
Drop-out Time Conversion Series D
The average normal drop-out time for the contactor is 200 ms. The "fast drop-
out" contactor has a drop-out time less than 60 ms. Conversion from "normal"
to "fast" or vice-versa is easily achieved by changing the control component wired
in parallel with the closing coil (see Figures 3.3 and 3.4). The required compo-
nents can be ordered from Rockwell Automation and installed per the appropri-
ate schematic.
Normal drop-out parts:
(1) Rectifier bridge 24808-451-01
(1) Mounting screw M-8765
(1) Wire assembly 80018-457-32
(1) Wire assembly 80018-457-33
Fast drop-out parts:
(1) MOV assembly 80145-581-03
The rectifier bridge for the normal drop-out mounts on the outside of the left
side plate above the auxiliary assembly (mounting hole provided). The MOV for
the fast drop-out mounts directly on the terminal blocks as shown in Figures
4.15 and 4.16.
Series E
Contactor drop-out times are set within and controlled by the IntelliVAC or
IntelliVAC Plus control modules (refer to publications 1503-UM053_-EN-P or
1503-UM054_-EN-P).