1. OCP Engineering Workshop 2017
Delta Electronics; INC
PSBG IDC 2017 Sep.

2. Modular Dimensions in Standard
Flexible Power Shelf Height Size

3. Modular Dimensions in Standard
Enable multiple configurations racks.
No real physical size change on rack.

4. Dim. A-G, “Lock” to “Stop”
Modular Dimensions (1) G
Table 1
42” Rack
30” Rack
Dim. A-G, “Lock” to “Stop”
/- 1.0
/- 1.0

5. Modular Dimensions (2)

6. Modular Dimensions (3) For 12V OCP rack, Dim. G-H should be:
Dim. G-H, “Stop” to “RTN” G H
For 12V OCP rack,
Dim. G-H should be:
793.4 – = 3.8 mm
For 48V OCP rack,
652.6 – = 7.6 mm
This dimension is depended on used clip type / size.
Table 2
12V Rack
48V Rack
Dim. G-H, “Stop” to “RTN”
3.8 mm
7.6 mm

7. Dim. A-G, “Lock” to “Stop”
Multiple Configuration Racks
Table 1
42” Rack
30” Rack
Dim. A-G, “Lock” to “Stop”
/- 1.0
/- 1.0
Table 2
12V Rack
48V Rack
Dim. G-H, “Stop” to “RTN”
3.8 mm
7.6 mm
42” /
12V
OCP Rack
42” /
48V
OCP Rack
30” /
12V
OCP Rack
30” /
48V
OCP Rack

8. Flexible Power Shelf Height Size
Define power shelf installed bottom datum.
Propose bus bar connection patterns to for multiple power shelf form factors
12V / 18 KW / 1OU Power shelf
48V / 36 KW / 2OU Power shelf

9. Clip mated on 12V Bus Bar 48V clip +12V Bus Bar 21.3 mm Return Bus Bar
Dim. G-H, 3.8 mm
48V clip
21.3 mm
+12V Bus Bar
Return Bus Bar

10. Clip mated on 48V Bus Bar 48V clip +48V Bus Bar Return Bus Bar 13.4 mm
Dim. G-H, 7.6 mm

11. Power shelf bottom datum Proposed Connection pattern for 12 VDC
Power Shelf in 12V OCP Rack G
Dim. G-H, 3.8 mm 22
26.0
48.0
Return Bus Bar 16 12
24.0 TYP.
Power shelf bottom datum
Proposed Connection pattern for 12 VDC

12. Power shelf bottom datum Proposed Connection pattern for 48 VDC
Power Shelf in 48V OCP Rack
Return Bus Bar
Power shelf bottom datum
48.0
24.0 TYP.
48.0
48.0 12
Dim. G-H, 7.6 mm 14 20 20 G
Proposed Connection pattern for 48 VDC

13. Smarter. Greener. Together.
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