Connecting Studs - Siemens I-T-E Sensitrip MD Series Information And Instruction Manual

I-T-E Connecting Studs (RS5785, RS5786)
Circuit Breaker Preparation
A. Remove terminal shield (1) from line and load side of
breaker frame. Two #8-32 screws (2) each (Figure 3).
B. Attach the connecting studs (3) as shown in Figure 4, to
each pole of the circuit breaker with two 5/8-18 hex head
cap screws, flatwashers and lockwashers (4). Torque
the screws to 72 lb. in.
C. Inspect the rear busbar When properly attached they
should be aligned and parallel with each other and
perpendicular with the circuit breaker mounting surface.
Circuit Breaker Mounting Procedure
A. Position the circuit breaker on the mounting panel,
passing the attached connecting stud through the panel
openings.
B. Secure the circuit breaker to the panel by attaching each
connecting stud with the panel clamp, (5) (Figure 4) hex
head bolt, lockwasher and flatwasher (6) supplied.
Torque the bolts to 96 in. lb.
C. Complete the appropriate user connections to the rear
connecting stud.
D. After the breaker is installed, attached to the mounting
panel and terminated, retorque each of the 5/8-18 hex
head cap screws (4) (Figure 4) to 72 in. lb.
E. Insert the end shields (7) into the slots provided at the line
and load ends of the breaker (Figure 4).
F Replace the breaker terminal shields (1) on the line and
load side of the circuit breaker and secure with four
breaker terminal shield screws (2). Tighten to 12 in. lb.
G. Affix label (this device is equipped with rear connecting
studs) (8J to the front of the circuit breaker (Figure 3).
H. If installation requires use of front panel trim, provide
cutout for breaker escutcheon (Figure 5).
Installations Requiring Panel Premounted Studs
If it is necessary to install the straps in a panelboard prior to
their attachment to the circuit breaker, the following proce-
dure is recommended.
A. Construct a strap positioning template fabricated from
1/2 in. thick material, dimensioned with the hole pattern
(Figure 6).
B. Attach the rear connecting studs to the mounting tem-
plate using the 5/1s-18 hex head cap screws (4) pro-
vided (Figure 4). Note that the rear strap mounting pads
are not symmetrical. The studs must be mounted with
the orientation (Figure 4).
C Position the template and stud assembly on the circuit
breaker mounting panel. passing the attached rear
studs through the panel opening.
D. Secure the assembly to the panel by attaching each
connecting stud with the panel clamp (5) hex head bolt,
lockwasher and flat washer (6) supplied. Torque to 96 in.
lb. (Figure 4).
E. Complete the appropriate user connections to the rear

connecting studs.

2 0
Figure 3
Figure 4
Figure 5