KRB-5331g
-31-
4-2-2-2. Moving the breaker body from the TEST position to the ISOLATED position
1) Open the ACB. (If the ACB remains closed, the draw-out handle (Fig. 21
◯
1
) cannot be inserted).
2) Press the release button (Fig. 21
◯
6
). The release button will be locked depressed.
3) Unlock the position lock lever (Fig. 21
◯
13
) if locked. See section 4-5.
4) Insert the draw-out handle into the draw-out handle insertion hole (Fig. 21
◯
4
). And slowly turn counterclockwise until a
freewheeling sound is heard. The position indicator (Fig. 21
◯
5
) shows “ISOLATED”. Turning the draw-out handle will unlock
the release button.
5) Remove the draw-out handle.
4-2-2-3. Moving the breaker body from the ISOLATED position to the removed position
1) Make sure the draw-out cradle (Fig. 21
◯
7
) is secured with mounting screws.
2) Unlock the position lock lever (Fig. 21
◯
13
) if locked. See section 4-5.
3) Push the rail stoppers (Fig. 21
◯
8
) outward on both sides of the draw-out cradle to unlock the draw-out rail (Fig. 21
◯
9
), and then
uphold and pull out the rail until it stops. The draw-out rail will be locked again by the stoppers. (The breaker body cannot be
drawn out unless the rail is locked).
4) Holding both the grips (Fig. 21
◯
10
), draw out the breaker body until it stops.
If the ACB is equipped with an optional auto-discharging device, the closing springs of the ACB will be automatically discharged
with a mechanical sound. This sound does not mean a malfunction.
Do not leave the ACB body on the draw-out rail pulled out.
5) Use an optional lifter or lifting plate to transfer the breaker body (Fig. 21
◯
3
) to a safe place. Refer to section 2-1-2.
4-2-3. Putting the breaker body back into the draw-out cradle
DANGER
Never touch live terminal parts. Otherwise, electric shock may result.
Do not leave the ACB body in the removed position. The weight of the ACB may cause serious injury.
CAUTION
Make sure the draw-out cradle is secured with mounting screws before inserting the breaker body into the draw-out cradle.
Otherwise, the insertion operation may cause the breaker body or the draw-out cradle to fall, resulting in damage to the ACB
or personal injury.
When retracting the draw-out rail into the draw-out cradle, be sure to push the rail end. Do not hold the hook pin, body
stopper, or body stopper shaft. Doing so may cause your fingers to be pinched, resulting in injury.
Do not forcedly turn the draw-out handle clockwise when the breaker body is in the CONN. Position. Doing so may cause a
malfunction.
If the ACB has the breaker fixing bolts, make sure the bolts on both sides are securely tightened before using the ACB.
Loosened fixing bolts may cause a malfunction of the ACB, in particular when it is installed in such an area that is subject to
strong vibrations.
Use the separate draw-out handle to insert the breaker body.
4-2-3-1. Putting the breaker body back to the ISOLATED position
1) Make sure the draw-out cradle (Fig. 21
◯
7
) is secured with mounting screws.
2) Push the rail stoppers (Fig. 21
◯
8
) outward on both sides of the draw-out cradle to unlock the draw-out rail (Fig. 21
◯
9
), and
then uphold and pull out the rail until it stops. The draw-out rail will be locked again by the stoppers. (The breaker body (Fig. 21
◯
3
) cannot be inserted unless the rail is locked).
3) Use an optional lifter or lifting plate to place the breaker body rollers (Fig. 22) on the draw-out rail (Fig. 22).
Do not leave the ACB body on the draw-out rail pulled out.
Summary of Contents for TemPower AR650S
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