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TERMINATIONS

Termination Point

Wire Gauge

Strip Length

Torque

Main Breaker

  300 MCM - #3 AWG 

1.0 in.

250 in-lbs.

Main Lug

  300 MCM - #3 AWG

1.0 in.

375 in-lbs.

Main Neutral

  300 MCM - #3 AWG

1.5 in.

375 in-lbs.

Main Ground

   2/0 AWG - #4 AWG 

0.75 in.

50 in-lbs.

Load Power  
(brass)

   #4 AWG - #8 AWG 
   #10 AWG - #14 AWG

0.40 in. 
0.40 in.

45 in-lbs. 
35 in-lbs.

Load Neutral  
(silver)

   #4 AWG - #8 AWG 
   #10 AWG - #14 AWG

0.40 in. 
0.40 in.

45 in-lbs. 
35 in-lbs.

Ground Bus

   #4 AWG - #6 AWG 
   #8 AWG 
   #10 AWG - #14 AWG

0.50 in. 
0.50 in. 
0.50 in.

35 in-lbs. 
25 in-lbs. 
20 in-lbs.

Step 4: Phase, Neutral and Ground Conductors
WARNING: 

Use 

ONLY

 approved fittings and clamps to avoid 

damage to wires.

a.

  Bring the 

phase (J)

neutral (K)

 and 

ground (L)

 conductors 

into the enclosure through the overhead conduit opening or a 
bottom-feed knockout.

b.

  Determine whether or not the application requires the use of a 

main circuit breaker (M) 

(fig. 5)

, or if 

main lugs (N)

 

(fig. 6)

 can 

be used based on the local electrical codes.

c.

  Connect the 

phase (J)

neutral (K)

 and 

ground (L)

 conductors 

to appropriate terminals and torque to spec in the terminations 
table 

(fig. 5 or 6)

d.

  If installing with a 

main circuit breaker (M)

, also install the 

two (x2) 

terminal covers (O)

 that have been provided 

(fig. 7)

.

e.

  When installing this enclosure as the service entrance, the 

bonding strap (P)

 

MUST BE

 installed 

(fig. 8)

. Torque to 20 

in-lbs.

f. 

  When installing this enclosure as a sub panel, 

DO NOT

 install 

the 

bonding strap (P)

.

NOTE: 

For Service Equipment, apply “SERVICE DISCONNECT” 

label (provided) to trim, near main breaker handle.

NOTE: 

For Branch Equipment, apply “MAIN” label (provided) 

to trim, near main breaker handle.

Step 5: Branch Circuit Breakers
WARNING: 

Leviton

 circuit breakers 

MUST BE

 used with a 

Leviton

 circuit breaker enclosure.

a.

  Strip and connect the

 load phase (Q)

 and 

load neutral (R)

 

wires to the 

load terminals (S)

 and ground wire to the 

ground 

bus (T)

 of the circuit breaker enclosure 

(fig. 9)

. 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.

b.

  Align the 

hooks and guides (U)

 of the branch circuit breaker 

with the panel and press until breaker snaps into place 

(fig. 10)

Step 6: Installing Deadfront

NOTE: Twist-outs (V)

 must be removed for each position that contains 

a branch circuit breaker. Fill any unused open spaces in cover using 
filler plates 

(see filler plate instructions)

.

a.

  To remove 

twist-outs (V)

, first strike with a screwdriver, then 

twist with pliers until detached 

(fig. 11)

.

b.

  Install 

deadfront (W)

 

by sliding it inward above the side wall 

protrusions on each side at a 45-degree angle until bottom portion 
of the 

deadfront (W)

 is seated into enclosure 

(fig. 12)

.

c.

  Secure the bottom of the 

deadfront (W)

 with the 

securing 

screw (X)

.

d.

  Apply circuit directory labels on the back of the door.

Step 7: Complete the Installation
WARNING: 

Before providing power to the load center, 

check all electrical connections and confirm that the wiring 

is correct.

WARNING: 

Replace all doors and covers before 

connecting power to this equipment.

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.

SAVE THESE INSTRUCTIONS

For Technical Assistance Call: 1-800-824-3005 (U.S.A. Only) 

1 800 405-5320 (Canada Only) www.leviton.com

PK-A3230-10-00-0A

© 2018 Leviton Mfg. Co., Inc.

Fig. 5

Fig. 6

Fig. 7

Fig.8

Fig. 9

Press until 

breaker snaps 

into place

Fig. 10

Fig. 11

Fig. 12

Align hooks 

and guides (U)

Terminal covers 

(O) (x2)

Ground 

(L)

Phase wires 

(J) (x2)

Main lugs (N) (x2)

Neutral
(K)

Main circuit breaker (M)

Ground 

(L)

Phase

(J) (x2)

Neutral
(K)

Bonding strap

(P)

Ground

bus 

(T)

Load terminals (S)

Load phase (Q)

Load Neutral (R)

Twist-outs

(V)

Securing screw (X)

Deadfront

(W)

45˚

WEB 

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