Toshiba operation manual 14 431A MBS/PDU Distribution, Purpose

14 431A MBS/PDU (Distribution)

Purpose

The 431A is available in a MPS/PDU configuration. This unit consiss of 12-pole PDU in the top section, and a SKRU (So- lenoid Key Release Unit) MBS below it. See figure 14.1.

If one of the magnets does not latch firmly, or the spacing is too narrow, bend one or the other of the magnetic latch supports in or out as required to ensure a good fit. See Figure 14-1.

Repeat Step 14-3 and 14-4 for the F/B kick plate at the back of the UPS.

Remove the F/B kick plates from the C-channel base skids.

No.	Part
1	Upper (PPD) Front Cover Mounting
	Slots
2	Lower (MBS) Front Cover Mounting
	Slots
3	PDU Circuit Breaker Panel
41	Cable Anchor Brace
5	SKRU for MBS
6	TB1
7	PCB1 - Power Board for SKRU
8	MBS Bus Stubs
9	MBS with Keyed Mechanical Lockout
10	Ground Bus Strip
11	Side Cable Access
12	Bottom Cable Access
13	C-Channel Base

1 - Secure the cables with cable ties to the Cable Anchor Brace. This will provide strain relief for the upper power bus strips.

1 1

3

1	4	1
		7
5	6
2	8	2

9

2	2
	10
11	11
	12
	13

Figure 14-1 - 4400 MBS/PDU with Front Panels

Removed

4300 Series Ancillary Cabinets Installation and Operation Manual 61