Square QED-2 - Installing QMB;QMJ;QMQB1 Fusible Switches; Table 4 - QMB;QMJ Fusible Switch Blank Fillers; Table 5 - QMQB1 Fusible Switch Blank Fillers

Power-Style™ QED-2 Switchboards Section 7—Maintaining the Switchboard
46 © 1988–2018 Schneider Electric All Rights Reserved 80043-055-13
ENGLISH
Installing QMB/QMJ/QMQB
1
Fusible Switches
1. Turn off the main power.
2. Turn the switch handle(s) to the OFF position. Align switch plug-on connectors
with QMB panel vertical bus, and plug switch onto panel.
3. Place and partially tighten all unit mounting screws that mount to the QMB
panel mounting rails.
4. Tighten all screws evenly. The unit mounting flange and plug-on connectors
must be seated securely.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Remove power for these sections before installing or removing
QMB/QMJ/QMQB
1
switches.
• Do not use a main as a branch unit or a branch as a main.
• All unused spaces must be filled with blank fillers before energizing the
switchboard. Refer to Tables 4 and 5 for sizes and catalog numbers.
Failure to follow these instructions will result in death or serious injury.
Table 4 – QMB/QMJ Fusible Switch Blank Fillers
Height Catalog No.
1.50 in. (38 mm) QMB1BLW
3.00 in. (76 mm) QMB3BLW
6.00 in. (152 mm) QMB6BLW
15.00 in. (381 mm) QMB15BLW
Table 5 – QMQB
1
Fusible Switch Blank Fillers
Height Catalog No.
2x: 1.375 in. (35 mm) QFS1
8x: 5.50 in. (140 mm) QFS5
10x: 6.875 in. (175 mm) QFS6
14x: 9.625 in. (244 mm) QFS9
24x: 16.50 in. (419 mm) QFS16
NOTIC
E
HAZARD OF PLUG-ON CONNECTOR DAMAGE
Do not remove the protective lubricant on the plug-on connectors.
Failure to follow these instructions can result in equipment damage.