What CSED catalog numbers can the Overhead trough, part number OCK400, be used with?

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What CSED catalog numbers can the overhead trough, part number OCK400, be used with?

Issue:
Product design features

Product Line:
Combination Service Entrance Devices

Resolution:
The OCK400 is listed as an accessory on the wiring diagram of the following 400 A CSEDs:

P/N#	P/N#
CU12L400CB	RU2040D400PCL
CU12L400CN	RU2040D400PCLX
CU816D400CN	RU3040D400CK
CU816D400PCN	RU3040D400CL
QU12L400CL	RU3040D400CLX
QU12L400SL	SU2040D300PCN
QU816D400CL	SU2040D400PCB
QU816D400CLX	SU2040D400PCN
QU816D400PCL	SU3040D300CN
QU816D400PCLX	SU3040D400CB
QU816D400PSL	SU3040D400CN
QU816D400SL

NOTE: This trough DOES NOT allow for entering the top endwall on any of the 400 A CSED devices. As shown below, it is ONLY a trough for routing the service wires into the top of the trough, then down through the trough to enter the CSED devices from the bottom.
Trough drawing
Installation instructions;