Effective March, 1998
IL 33-A1C-1
Page 13
Step 11: Preparing the Trip Unit Assembly
A. Secure the (2) Glass Poly Barrier Mounting
Brackets to the Barrier, as shown, using the (4)
.112-40 × .250" screws, (4) lock washers, and
(4) flat washers supplied.
B. Secure the Trip Unit Mounting Bracket to the
Breaker Mounting Bracket, as shown, using the
(2) .250-20 × .750" bolts, (4) flat washers, (2)
lock washers, and (2) nuts supplied.
C. Install the Trip Unit on the Trip Unit Mounting
Bracket using the (2) brass spacers, (2)
.190-32 × 4.00" screws, (4) flat washers,
(2) lock washers, and (2) nuts supplied, as
shown. Note that the brass spacers are placed
between the bottom of the Trip Unit and the
mounting bracket.
D. Position the Trip Unit Support Brackets on
the sides of the Trip Unit so they “pinch” the
Trip Unit in place. Secure the External
Harness Mounting Plate and the right hand
Trip Unit Support Bracket to the Trip Unit
Mounting Bracket, as shown, using the
(2) .138-32 × .500" screws, (2) lock washers,
(4) flat washers and (2) nuts supplied. Secure
the left hand Trip Unit Support Bracket to
the Trip Unit Mounting Bracket using the
(2) .138-32 × .375" screws, (4) flat washers,
(2) lock washers, and (2) nuts supplied.
E. Align the Glass Poly Barrier Assembly with the
holes in the Trip Unit Support Brackets. Secure
the Glass Poly Barrier Assembly to the Trip Unit
Assembly using the (2) .164-32 × .250" screws,
(4) flat washers, (2) lock washers, and (2) nuts
supplied.
