Open/close operation. Mitsubishi Electric AE2000-SWA, AE4000-SW, Low-Voltage Air Circuit Breakers series Type AE-SW, AE3200-SW, AE630-SW

Open/close operation

< Conditions for closing operation >

ON operation becomes available when the following conditions are met.

 The breaker is OFF condition.

 The closing spring is charged.

The charging indicator shows “CHARGED”.

 The state without OFF operations.

• Without SHT operation

• Without mechanical lock (Padlock, Cylinder lock, Mechanical interlock etc.)

• UVT controller power is supplied and no operation with trip terminals.

• The manual reset button is being reset

Manual open/close operation

< Closing >

Push the ON button, the breaker will close. The ON/OFF indicator will show “ON”, and the charging indicator will show

“DISCHARGED”. Operating force is less than 50N.

(Caution)

When an OFF locking device (padlock, cylinder lock, etc.) is being used, release the lock, and then perform the closing operation.

When closing or opening a drawout type breaker at the CONNECT or TEST position, do so with the locking plate protruded.

When an undervoltage trip device (UVT) is equipped, wait 1.5 sec. after applying the rated voltage before closing the breaker.

To perform the ON operation, check that the drawout position indicator shows “CHARGED” before pressing the ON button. (Fig. 17-2)

* If undervoltage tripping device （ UVT ） is UVT with a-contact, wait for 1.8 sec. Instead of 1.5 sec.

< Opening >

Push the OFF button, the breaker will be opened and the

ON/OFF indicator will show “OFF”. Operating force is less than 50N.

ON

OFF non-OFF instructions

Manual reset button

OFF

Fig. 17-1

Fig. 17-2

ON

Fig. 17-3

OFF

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Electric open/close operation

< Closing >

Opening operation can be performed electrically by using a closing coil (CC). By applying the rated voltage to A1 and

A2 on the control circuit terminal block, the breaker can be closed.

The pumping preventing relay that performs only one operation with one input command is built in.

To close again, turn OFF the closing coil control supply

(between A1 and A2 ) once, and apply the rated voltage again. For a closing command to CC, wait at least a 0.5 sec. interval after completing charging and turning OFF the breaker.

(Caution)

For a closing command to CC after completing charging, wait at least a 0.5 sec. interval. If a closing command is given within 0.5 sec. after charging completion, the design life of the opening/closing operation may be shortened.

In some cases, the breaker does not close by a closing command given within 0.5 sec. after a manual OFF operation or an OFF operation by SHT.

When an undervoltage trip device (UVT) is equipped, the breaker does not close unless the power supply is applied.

(After applying the control supply to UVT, wait 1.5 sec. for the closing operation to become available.)

If undervoltage tripping device （ UVT ） is UVT with a-contact, wait for 1.8 sec. Instead of 1.5 sec.

< Opening >

Opening operation can be performed electrically by using a shunt trip device (SHT) or undervoltage trip device (UVT).

For SHT, apply a rated voltage to C1 and C2 of the control circuit terminal block.

For UVT, open between the trip terminals DT1 and DT2 of the control circuit terminal block. (A short-circuit bar is equipped when shipped from the factory. Remove this before using.)

Alternatively, turn OFF the voltage applied to D1 and D2 .

UVT circuit diagram (with the 100 to 120 V AC, 200 to 240 V AC, or DC spec. models)

+

D1

UVT controller

D2

DT1

UVT coil

OFF operating

Press button

Min. 0.2 sec.

2 m or less

DT2

Breaker

Note) For the rating of the OFF operation press button switch, use one for 150 V DC and 0.5 A or higher.

Fig. 18-3

CC circuit diagram

+

A1

Control supply

A2

Breaker

One-pulse circuit

CC unit

CC

Note) The 24 V DC to 48 V DC models are not equipped with rectifier circuits.

Fig. 18-1

SHT circuit diagram

+

C1

Control supply

C2

Breaker Cut-off switch

SHT

SHT unit

Note) The 24 V DC to 48 V DC models are not equipped with rectifier circuits.

Fig. 18-2

UVT circuit diagram (with the 380 to 460 V AC models)

IN1 OUT3

IN2

External unit

OUT4

+

D1

D2

UVT controller

UVT coil

DT1

OFF operating

Press button

Min. 0.2 sec.

2 m or less

DT2

Breaker

Note) For the rating of the OFF operation press button switch, use one for 150 V DC and 0.5 A or higher.

The external unit is dedicated to AE-SW. Only one UVT controller can be connected to one external unit.

Fig. 18-4

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