GE Industrial Solutions ProTrip Conversion Kits LA-600, LA-800, and LA-1600 User Manual

Page 8

Advertising
background image

8

Trip Screw Adjustment

With the breaker CLOSED, the trip screw [3] must
have zero clearance with the breaker trip paddle. If
adjustment is necessary, OPEN the breaker, make
the adjustment, then CLOSE the breaker to check
the adjustment. Be sure to retighten the adjusting
nut.

WARNING: Be extremely careful when working on
a CLOSED breaker. Do not reach your hands into
the mechanism while adjusting the flux shifter.

Breaker Reset Linkage.

This following procedure is illustrated in Figures 4,
6, and 7

Place a #10 flat washer over the supplied #10-32
bolt. Insert the bolt through the hole in the breaker
reset link [7]. Place a flat washer over the bolt, then
slide the bolt through the slot in the flux shifter
reset arm [1]. Place a flat washer and the self-
locking nut on the bolt. Tighten the nut so that the
bolt is still free to rotate.

Flux Shifter Test

The operation of the flux shifter may be tested by
closing the breaker, then applying 9 Vdc to the flux
shifter leads (red is positive). The breaker should
trip and reset. If necessary, repeat the adjustments
in the previous procedures.

Figure 6. Flux shifter assembly installed, as viewed from the bottom of

the breaker.

Figure 7. Flux shifter assembly installed, as viewed from the right front

of the breaker (LA-800 shown). .

Breaker

Reset Link [7]

Trip

Paddle

Mounting

Stud [6]

Breaker

Reset

Link [7]

Flux Shifter

Reset Link

[ ]

Trip

Screw

[3]

Flux Shifter

Reset Arm [1]

Advertising