APC SBP Installation Manual download pdf (Page 21)

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VT SBP with Power Distribution 10-30kVA, 208V, Installation Manual - 990-4198A 15

Installing Panel Board Breakers

This section describes how to install breakers to the SBP’s 42-position panel board.

1. Use the enclosed keys to unlock and open the front door of the SBP.

2. Select the next available breaker position(s) on the panel board, and then snap the new 1-, 2-, or

3-pole breaker into the appropriate guard rail.

3. Make the bolt-on connections (those nearer the center of the panel board). Use a standard

(flathead) screwdriver and torque to 24 in-lbs [2.71 Nm].

4. Remove the corresponding plastic blanking plate(s) located directly in front of the newly

installed breaker. The blanking plates can be accessed through the smaller, hinged “panel

board” door at the front of the SBP. Use one of the front door keys to open this door.

Electrical

Hazard

WARNING!

Before installing breakers, make sure ALL SBP switches are in the OFF position.

From normal operation, first switch Q2 OFF, and then switch Q1 OFF.

Note

The top pole of a 3-pole breaker must always be placed in an L1 position on the

panel board. Counting down from the top, these are positions 1, 7, 13, 19, etc. on the

left side of the board and positions 2, 8, 14, 20, etc. on the right side of the board.

Note

There is one (1) bolt-on connection for a 1-pole breaker, two (2) bolt-on connections

for a 2-pole breaker, and three (3) for a 3-pole breaker.

Note

After installation, panel board breakers can be accessed by simply opening the

panel board hinged door.

3-pole Breaker

(positions 1, 3, 5)

3-pole Breaker

(positions 2, 4, 6)

Bolt-on

Connections

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 31 32

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APC SBP Installation Manual Page 21