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PowerPact H-, J-, and L-Frame Circuit Breakers
Circuit Breaker Mounting and Connections
146
02/2016 © 2011–2016 Schneider Electric
All Rights Reserved
Bus-Bar Connections
The H-, J- and L-frame circuit breakers may be equipped with captive nuts and screws for direct
connection to bars or to compression (crimp) lugs.
For H- and J-frame, these are readily field-installable, simply by removing the mechanical lug and
replacing with the appropriate terminal nut inset described in Table 128. They are also available
factory-installed, using the Product Selector or by using the catalog suffixes below.
For L-frame, the mechanical lug can be removed, leaving the threaded nut insert intact. This
configuration may be ordered with the suffixes described below. Connection hardware (terminal
screws) must be ordered as in table 128.
Terminal Nut Insert
Table 128: Factory-Installed Terminal Nut Inserts for Bus or Crimp Lug Connection
Cat. No. Termination
(Position 4)
Special Terminations Options Description
F — Terminal nut insert on both ends; no lugs either end
M — Terminal nut insert on OFF end; lugs on ON end only
P — Terminal nut insert on ON end; lugs on OFF end only
A -TA I-Line on ON end; English terminal nuts on OFF end
1
1
For H- and J-frame only. L-frame terminal nuts are metric only.
A -TB I-Line on ON end; Metric terminal nuts on OFF end
1
F, M, or P -TW For -F, Metric terminal nuts on both ends
1
F, M, or P -TX
For -M, lugs on ON end; Metric terminal nuts on OFF end
For -P, Metric terminal nuts on ON end; lugs on OFF end
Table 129: Terminal Nuts for Bus Bar Connection of H-Frame and J-Frame Circuit Breakers
Description Frame Tap Cat. No. Qty Per Kit Torque
H-Frame Terminal Nut Insert–English HD/HG/HJ/HL 1/4-20 S37425 2
80–90 lb-in
(9–10.2 N•m)
H-Frame Terminal Nut Insert–English HD/HG/HJ/HL 1/4-20 S37444 3
H-Frame Terminal Nut Insert–Metric HD/HG/HJ/HL M6 S37426 2
J-Frame Terminal Nut Insert–English JD/JG/JJ/JL 1/4-20 S37427 2
80–90 lb-in
(9–10.2 N•m)
J-Frame Terminal Nut Insert–English JD/JG/JJ/JL 1/4-20 S37445 3
J-Frame Terminal Nut Insert–Metric JD/JG/JJ/JL M8 S37428 2
Table 130: Bar Dimensions
Dimension H-Frame J-Frame L-Frame
A
0.250 in.
(6.4 mm)
0.3125 in.
(7.9 mm)
0.4 in.
(10.2 mm)
B
0.125–0.375 in.
(3.2–9.5 mm)
0.125–0.375 in.
(3.2–9.5 mm)
0.11–0.39 in.
(2.8–9.9 mm)
C
0.50 in.
(12.7 mm)
0.50–0.75 in.
(12.7–19.0 mm)
1.35 in.
(34.3 mm)
D
0.3 in.
(7.6 mm)
0.625 in.
(15.9 mm)
<0.51 in.
13 mm)
E
0.3 in.
(7.6 mm)
0.375 in.
(9.5 mm)
0.64 in.
(16.3 mm)
Table 131: L-Frame Bus Bar Connections Hardware
Description Cat. No.
Set of 4 M10 x 25 terminal screws and washers for one side. S36967
=
=
D
E
C
A Ø
B