Leviton LP420-CBW User manual

PK-A3220-10-00-0C
IMPORTANT SAFETY INSTRUCTIONS - READ ALL INSTRUCTIONS BEFORE USING.
INSTALLATION INSTRUCTIONS
Indoor Load Center Enclosure
Patents covering this product, if any, can be found on Leviton.com/patents.
LIMITED PRODUCT WARRANTY
For Leviton’s limited product warranty, go to www.leviton.com. For a printed copy of the warranty you may call 1-800-323-8920.
WARNINGS
INSTALLATION
WARNING: TO AVOID FIRE, SHOCK, OR DEATH, TURN OFF
POWER SUPPLYING THIS EQUIPMENT AND CONFIRM POWER IS
OFF before installing, removing, or servicing this equipment.
Step 1: Enclosure Knockouts
NOTE: Before removing any knockouts from the enclosure, consult
the local electrical code to determine the knockout requirements.
a. To remove knockouts (A), first strike the center of knockout.
b. Pry each ring (B) up, one at a time, and grip both ends with a
pair of pliers.
c. Use the pliers to bend the rings (B), until they disconnect
from the enclosure (fig. 1).
NOTE: When using the service entrance compartment cover (C),
utilize knockouts that will allow access to the service entrance
compartment. Avoid the entrance of phase wires (H), neutral (I),
and ground (J) conductors outside of the compartment area, to
prevent interference between them and the cover.
Step 2: Enclosure Mounting
Surface Mounting
NOTE: Leviton®load centers can be inverted for bottom feed applications.
a. Remove the service entrance compartment cover (C) by unscrewing
the two (x2) screws (O) securing it to the enclosure (fig. 2).
NOTE: The service entrance compartment cover (C) is not
required for main lug load center enclosures.
b. Keyholes (D) at the top and bottom of the enclosure are
provided to assist in the alignment and leveling of the
enclosure (fig. 3).
c. Temporary screws or nails (not provided) should be used in
these keyholes during alignment and leveling.
d. Four (x4) mounting holes (E) have been precut in the back of
the enclosure for ease of installation (fig. 3).
e. Use screws or nails (not provided) in these four (x4)
mounting holes (E) to secure the enclosure to the wall.
f. Remove the temporary screws or nails that were used to align
and level the enclosure through the keyholes (D).
Flush Mounting
NOTE: Leviton load centers can be inverted for bottom feed applications.
a. Remove the service entrance compartment cover (C) by unscrewing
the two (x2) screws (O) securing it to the enclosure (fig. 2).
NOTE: The service entrance compartment cover (C) is not
required for main lug load center enclosures.
b. Four (x4) mounting slots (F) have been precut on the side of
the enclosure for installation between studs.
c. Pierce the foil tape (G) on the side of the enclosure
, with a
mounting screw or nail.
d. If using 1/2 inch sheetrock, align the embossed (1/2) line with
the front of the stud to achieve optimal flush mounting.
e.
Use the mounting slots (F) on both sides of the enclosure to
mount the enclosure with screws or nails (not provided) (fig. 4).
Fig. 3
Fig. 1
Fig. 4
Fig. 2
a.
b.
c.
• TO AVOID FIRE, SHOCK, OR DEATH, TURN OFF POWER SUPPLYING THIS EQUIPMENT AND CONFIRM POWER IS OFF
before installing, removing, or servicing this equipment.
• TO AVOID RISK OF FIRE, check all wiring and ensure all circuit breakers are installed in the proper position before energizing the panel.
•
Before providing power to the load center, check all electrical connections and confirm that the wiring is correct.
• This equipment MUST BE installed and serviced by an electrician.
• To be installed and/or used in accordance with electrical codes and regulations.
• Leviton circuit breakers MUST BE used with Leviton circuit breaker enclosures.
• Use ONLY approved fittings and clamps to avoid damage to wires.
• Replace all doors and covers before connecting power to this equipment.
• SAVE THESE INSTRUCTIONS.
Knockouts
(A)
Rings
(B)
Rings
(B)
Keyhole (D)
Mounting
holes
(E) (x4)
Keyhole (D)
Foil tape
(G) (x4) Mounting slots
(F) (x4)
1/2 in. line
Compartment cover
(C)
Screws
(x2) (O)
Step 3: Phase, Neutral, and Ground Conductors
WARNING:
Use ONLY approved fittings and clamps to avoid damage to wires.
a. Bring the phase wires (H), neutral,(I) and ground (J) conductors into the enclosure through the predetermined knockouts.
b.
Determine whether or not the application requires the use of a main circuit breaker (K) (fig. 5), or if main lugs (L) (fig. 6) can be used based on the local electrical codes.
c. Connect the phase wires (H), neutral (I), and ground (J) conductors to appropriate terminals and torque to spec in the terminations table (fig. 5 or 6).
d. If installing with a main circuit breaker (K), also install the two (x2) terminal covers (M) that have been provided (fig. 7).
e. When installing this enclosure as the service entrance, the bonding strap (N) MUST remain installed (fig. 8).
f. When installing this enclosure as a sub panel, REMOVE the bonding strap (N) by unscrewing the two (x2) mounting screws (fig. 9). With the bonding strap removed, ground
conductors must be terminated on the ground bar, and neutral conductors must be terminated on the neutral bar.
CAUTION: If the load center has been installed with a main breaker continue with steps gand h. Steps gand hdo not apply to main lug load center enclosures.
g. Install the service entrance compartment cover (C) by placing the top edge under the enclosure flange (P) (fig. 10).
h. Align cover with the two (x2) screw holes and torque the screws (O) to 20 lb-ins.
WEB VERSION

Fig. 5
Fig. 6
Fig. 7
Fig. 8 Fig.9
Fig. 10 Fig. 11
Main Neutral (I)
Main Ground
(J)
Phase wires
(H) (x2)
Main lugs (L) (x2)
Main Neutral
(I)
Main Ground
(J)
Phase wires
(H) (x2)
Terminal covers (M)
(x2)
Main Circuit breaker (K)
a.
b.
Press until
breaker snaps
into place
Load terminals (Q)
Ground
bus
(R)
Load Power
Load Neutral
Twist-outs
(V)
Main
breaker
knockout
(T)
Adjustment
screws
(W) (x2)
Step 4: Branch Circuit Breakers
WARNING: Leviton circuit breakers MUST BE used with a Leviton
circuit breaker enclosures.
a. Strip and connect the load power and load neutral wires to the
load terminals (Q) and ground wire to the ground bus (R) of
the circuit breaker enclosure (fig. 11). Strip wires and torque
load terminals to spec in the terminations table.
NOTE: Ensure that the main breaker is in the OFF position
before installing any branch circuit breakers.
NOTE: Ensure that all branch circuit breakers are in the OFF
position before installing into the panel.
WARNING: TO AVOID RISK OF FIRE, check all wiring and ensure
all circuit breakers are installed in the proper position before
energizing panel.
b.
Align the hooks and guides (S) of the branch circuit breaker
with the panel and press until breaker snaps into place (fig. 12).
Step 5: Install Door
a.
Remove the main breaker knockout (T) if a main breaker was
installed. Do not remove in installations using the main lugs (L).
b. Twist-outs (V) must be removed for each position that contains a
branch circuit breaker.
c. To remove twist-outs (V), first strike with a screwdriver, then
twist with pliers until detached (fig. 13).
NOTE: Fill any unused open spaces in cover using filler plates
(see filler plate instructions).
d. Install door using the cover screws (provided).
e.
Leviton covers contain a feature for adjustment in flush mounting
applications. In flush mount applications for covers larger than
42 spaces, dead front interlock tabs MUST BE disengaged to
allow for adjustment of dead front position(fig.14a). Turn each
adjustment screw (W) until the cover fits tightly against the circuit
breakers (fig.14b).
f. Apply circuit directory labels in the appropriate location,
depending on cover/door type.
Step 6: Complete the Installation
WARNING: Before providing power to the load center, check all
electrical connections and confirm that the wiring is correct.
a. Ensure that the main and all branch circuit
breakers are in the OFF position. To energize,
first turn ON the main breaker, and then
turn ON each individual branch circuit breaker.
For Technical Assistance, call: 1-800-824-3005 (USA Only) or 1-800-405-5320 (Canada Only) www.leviton.com
© 2021 Leviton Mfg. Co., Inc.
Fig. 12
Fig. 13 Fig. 14
Bonding strap
(N) Bonding strap
(N)
Main Circuit breaker (K)
Align hooks
and guides (S)
Compartment
cover
(C)
Enclosure flange (P)
Screws
(x2) (O)
a. b.
6 Tab locations
shown by arrows
Tabs must be
disengaged to
achieve flush surface
Tabs flushed
TERMINATIONS
Termination
Point
Wire
Material Wire Gauge Strip Length Torque
Main Breaker Copper/
Aluminum #3 AWG - 300 MCM 1.0 in. 250 in-lbs.
Main Lug Copper/
Aluminum #6 AWG - 300 MCM 1.0 in. 375 in-lbs.
Neutral Line
Copper/
Aluminum #6 AWG - 300 MCM 1.5 in. 375 in-lbs.
Ground Copper/
Aluminum
#4 AWG - 2/0 AWG 0.75 in. 50 in.-lbs
Load Phase
(brass) &
Load Neutral
(silver)
Copper
(1) #4 AWG - #8 AWG,
Stranded
0.4 in.
45 in.-lbs
(1) #10 AWG, Solid or
Stranded 35 in.-lbs
(2) #14 AWG - #10
AWG, Solid 35 in.-lbs
(1) #12 AWG - #14 AWG,
Solid or Stranded 25 in.-lbs.
(2) #14 AWG or (2) #12
AWG, Stranded 25 in.-lbs.
Aluminum
(1) #4 AWG - #6AWG,
Stranded 45 in.-lbs
(1) #8 AWG, Stranded 35 in.-lbs
(2) #12 AWG - #10
AWG, Solid 35 in.-lbs
(1) #10 AWG - #12
AWG, Solid 25 in.-lbs.
(2) #12 AWG or (2) #10
AWG, Solid 25 in.-lbs.
Neutral &
Equipment
Ground Bar
Copper/
Aluminum
(1) #6 AWG - #4 AWG,
Stranded
0.5 in.
35 in.-lbs
(1) #8 AWG, Stranded 25 in.-lbs
(1) #14 AWG - #10 AWG
Solid or Stranded 20 in.-lbs
Copper
(2) #14 AWG - #10 AWG,
Solid or Stranded 25 in.-lbs
(1) #14 AWG and (1)
#12 AWG, Solid 25 in.-lbs
(1) #14 AWG and (1) #10
AWG, Solid or Stranded
25 in.-lbs
(1) #12 AWG and (1) #10
AWG, Solid
25 in.-lbs
Aluminum
(2) #12 AWG - #10
AWG, Solid 20 in.-lbs
(1) #12 AWG and (1)
#10 AWG, Solid 20 in.-lbs
Neutral Bar
Copper/
Aluminum
#4 AWG - #1 AWG,
Stranded
0.5 in.
50 in.-lbs
#8 AWG - #6 AWG,
Stranded 30 in.-lbs
Copper #14 AWG - #10 AWG,
Solid or Stranded 30 in.-lbs
Aluminum #12 AWG - #10 AWG,
Solid 30 in.-lbs
WEB VERSION