OPENING COVER
LP1 and LP2 Series panel boards are furnished with captive
stainless steel bolts. Make sure all cover bolts are fully retracted
into the cover before attempting to open or close the cover.
After all bolts are fully disengaged, firmly grasp the bottom and right
side of the cover and carefully swing cover aside. To prevent
damage to the ground joint surface, avoid striking cover, or devices
in cover, on neighboring enclosures or structures.
REMOVING AND REINSTALLING
PANEL BOARD COVER
•
Loosen all cover bolts and open cover. Using the hinge
sections still attached to the cover, grasp the cover under
opposite edges and lift from body.
•
To replace cover, make sure cover and body ground joint
surfaces are clean and not scratched. Orient cover so hinge
side of cover will align with hinge on body. Lift cover to
approximate position, and line up. Avoid sliding cover ground
joint surface over ground joint surface of body. Cover / body
bolt holes must match up. Hand start the corner bolts. Fully
tighten all cover bolts (torque to 25-30 ft. lbs.). Follow
procedures in Opening Cover section once hinges are
reinstalled.
ACCESS TO CIRCUIT BREAKER ENCLOSURE
1. For panel boards with alternate feed, pull wires into the
enclosure so that they are long enough to make the required
connections. Make connections per Figure 2 for either single or
three phase circuits. An EYS type seal will need to be installed
for this 3” entry to meet the NEC requirements.
When adding or removing circuit breakers, the final
configuration should begin with position #1 through the total
number of spaces used without leaving intermittent spaces. This
is done to ensure the panel board is evenly loaded by phase.
Use bolts on the bus bars to fasten the line side of each breaker
added. Connect the load side of each breaker to the appropriate
wire after cutting it to correct length.
2. Test wiring for correctness with continuity checks and for
unwanted grounds with an insulation resistance tester.
3. Align main circuit breaker operator with toggle position of the
main circuit breaker. Be sure all bolts are retracted into the
flange. Close cover and securely tighten all cover bolts. Use
only bolts supplied with the panel board. Torque all cover bolts
to 25-30 ft. lb.
4.
Mark circuit card directory located on junction box cover with
appropriate descriptions for each branch circuit number. Place
circuit card directory inside clear plastic jacket before inserting
in its holder.
NOTE: LP Series panel boards must be protected during hose down
operations. These panel boards are watertight but the breathers
and drains are not hose tight.
GROUND FAULT CIRCUIT BREAKER (GFCB)
INSTALLATION INSTRUCTIONS
Connect the GFCB line neutral pigtail(s) to the breaker housing
isolated neutral block. This block is mounted to the chassis in the
upper right section.
Select the load lead(s) on the branch terminal block in the terminal
housing that correspond(s) to the circuit location number in the
breaker housing (circuit numbers 2,4,6,8,10 or 12); ring out to locate
the same wire(s) in the breaker housing and insert into breaker
terminal. Do not tighten breaker terminal screw at this time (on 2-
pole breakers, tighten one terminal screw).
Selecting the highest available branch terminal block number
ensures the maximum breaker capacity in the panel board.
Ring out to locate same wire in the breaker housing and connect it
to the GFCB load neutral terminal.
Record the GFCB location and designation numbers (
G2, G4, G6,
G8, G10, G12
) on the Breaker Directory Card.
Place GFCB designation sticker (
G2, G4, G6, G8, G10, G12
) on the
lockout plate. Note that there is a stagger between the GFCB
push-to-test and the operator handle. For example, the test button
for circuit number 2 should be labled “G2” and it is positioned next
to operator handle for circuit number 4. Similarly, “G4” is next to
circuit number 6, etc.
GROUND FAULT CIRCUIT BREAKER TESTING
PROCEDURE
To test a single GFCB:
1.
With GFCB circuit energized push the corresponding button for
that circuit.
2.
Note if GFCB handle indicated trip or check if power was cut off
on that circuit.
3.
Reset GFCB
Note:
If adding GFCB breakers in the field, use only Cutler-
Hammer QBGF or QBGFEP series for GFI or EPD applications
respectively in Class I, Group C, D areas. For Class I, Group B
areas, use QBHGF or QBHGFEP breakers for GFI or EPD
applications respectively.
CAUTION
To maintain the integrity of the enclosure, clean dirt or foreign
material from both flange surfaces of body and cover before
closing. This will ensure a proper explosionproof joint.
IF 1433 • 04/03
Copyright © 2003, Cooper Industries, Inc.
Page 4
CAUTION
Per manufacturer’s instructions for maximum protection against
electrical shock hazard, operate test circuit on the unit at least
once a month.
CAUTION
To maintain the integrity of the enclosure, hammers or prying tools
must not be allowed to damage the flat joint surfaces. Do not
handle cover roughly, or, if removed, do not place it on surfaces
that might damage or scratch the flat ground joint surfaces.
CAUTION
DO NOT use cover bolts or circuit breaker operators as a means to
lift the enclosure. Excessive force on the fully retracted bolts or
operators may damage the shaft or bolt.
CAUTION
Panel board covers weigh up to approximately 50 to 55 lbs.
To avoid injury, handle appropriately for this weight.
