IL 33-DAH-1

Page 5

Step 5: Installing the Trip Unit Mounting Platform

A.Using Drilling Plan “A”, drill and counter sink two .375" holes in both the left and right Breaker side plates.

NOTE: The holes for mounting the DTA (see Step 10) should also be drilled and countersunk in the right Breaker Frame at this time.

Drilling Plan “A”

6.50" 2.00"

B.Mount the right and left Trip Unit Support Brackets

to the Breaker side plates as shown, using the

(4) .312-18 × .750" flat head screws, (4) flat washers, (4) lock washers, and (4) nuts supplied. Do not tighten them completely at this time.

NOTE: For ease of assembly, the 2-Point Terminal Block (Step 11-A) can be mounted to the inside of the right Trip Unit Support Bracket at this time.

C. Mount the Trip Unit Mounting Platform to the

Support Brackets using the (4) .312-18 × .750"

bolts, (8) flat washers, (4) lock washers, and (4)

nuts supplied. Tighten the hardware connecting

the Mounting Platform to the Support Brackets,

1.81"

 

 

 

0.75"

Drill 0.375" Dia. and

 

Countersink to 0.578"

 

 

0.75"

 

Head Size (2)

 

 

Right Side Only

2.38"

Drill 0.375" Dia. and

Countersink to 0.578"

Head Size (4)

and then the Support Brackets to the Breaker

side plates. Assure that the Mounting Platform

and Support Brackets are square with the Breaker.

Effective December, 1998