APC 3500 manual Installing Panel Board Breakers

Installing Panel Board Breakers

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

Electrical Hazard: Before installing breakers, make sure ALL MBP switches are in the OFF position. From normal operation, first switch Q2 OFF, and then switch Q1 OFF.

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

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.

Note: The panel board supports Square D® bolt-on circuit breakers. For a listing of recommended breakers, refer to “Panel board breakers” on page 7.

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.

1.Make the bolt-on connections (those nearer the center of the panel board). Use a standard (flathead) screwdriver and torque to 24in-lbs [3Nm].

2.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 MBP. Use one of the front door keys to open this door.

3-pole Breaker
(positions	3-pole Breaker
1, 3, 5)
	(positions 2, 4, 6)
Bolt-on
Connections

Note: After installation, panel board breakers can be accessed by simply opening the panel board hinged door.

14 Smart-UPS® VT and MGE™ Galaxy™ 3500 10-30 kVA 208 V MBP Installation