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■ Names of exterior part

① Front cover

② Arc extinguish chamber

③ Control circuit terminal

④ Electronic trip relay

⑤ Counte

⑥ Closing button

⑦ Charging handle

⑧ Name plate

⑨ Caution mark

⑩ position indicator

⑪ Pushing/Drawing lever hole

⑫ Charging indicator

⑬ Extension rail

⑭ Trip button

⑮ ON/OFF indicator

(16) Draw-out profile

(17) Main body profile

(18) Handle

■ Internal Structure

① Front cover

② Electronic trip relay

③ Auxiliary switch

④ Arc extinguish chamber

⑤ Closing coil

⑥ ON/OFF indicator

⑦ Closing mechanism

⑧ Trip mechanism

⑨ Trip coil

⑩ Charging handle

⑪ Charging indicator

⑫ Draw-out mechanism

⑬ Position indicator

⑭ Gear block

⑮ Draw-out cam

(16) Extension rail

(17) Closing spring

(18) Movable shunt

(19) Safety shutter

(20) Circuit breaker connection conductor

(21) Load side conductor

(22) Draw-out conductor

(23) Breaking spring

(24) Power supply side conductor

(25) Fixed contact

(26) Traveling contact

(27) Draw-out main body

■ Specifications

ISO 9001, ISO14001, applied for patent

Compact and light weight

The product is designed to be efficient and suitable for stand-alone switchboards by reducing its size and weight up to 85% to that of existing products.

Less size variation

Size variations have been reduced from four types to three types.

630~1250A / 1600~2000A / 2500A / 3200~4000A → 630~1600A / 2000~2500A / 3200~4000A

Safe and convenient

The control circuit terminal block is attached on the upper side of the product.

The mechanism and attached devices have been modularized in order to provide easy maintenance and inspection.

The draw-out rail has been significantly improved to allow easy draw-out.

The arc space has been minimized. The modular type cover offers a better appearance.

High-function digital protective relay

It is easier to identify the trip status with the trip status LED on the digital protective relay.

- The OCR tester (sold separately) offers a high-accuracy current detection circuit.

Various attachments

Improved quality through the application of diverse attachments.

Close first, open later type

When closing and opening main contact, the contact on the N phase contacts before and falls later than R, S, T phases, and thus prevents accidents that may occur from the previous position (especially when using single-phase load).

Example of configuring ACB type

S : type breaking capacity / H : High type breakung capacity

Standard

Draw-out type, Closing coil, Trip coil, Counter, OCR, Aux-switch(2a2b)

Operating voltage, OCR trip signal

Option

OCGR, CTD, Shutter device, OCR Tester, OCR alarm switch, Key switch,

Locationswitch, Auxiliary switch (AUX switch 3a3b,4a4b)

■ Product Attributes

ㆍDiversification is given to set circuit breaking conditions including electric current in a long time delay, in a short time delay, in an instantaneous trip and in ground fault. This provides a wide variety of choices and satisfaction of detailed needs.

ㆍThe energy for closing in store at springs, which brings about raped and precise operation.

ㆍEquipment can be used for either AC and DC according to the situation, which has diversified the choice as an option.

ㆍAll parts are standardized with molds to be repaired and maintained easily. And thorough inspection and standardized production bring about long durability.

ㆍReliability is much enhanced by the ability to confirm breaking by different causes.

■ Installation method

Fixed Type

The unit is directly connected to the panel board and is an economical method installation.

Draw out Type

It consists of two parts the main body of the breaker and the panel board frame.

It is directly connected to the panel board and the main body of the breaker is mounted on the draw out frame.

The main body of the breaker can be separated from the panel board without change in circuit.

Benefits easy checking for its function, easy repairing & charging part and maintenance, easy replacement of breaker itself.

■ Operation Method

Manual Storage Method

• It stores spring the energy needed for closing by moving the storage handle from up to down about 7 times.

• Repetition of the storage handle movement continues until the charging indicator displays "CHARGED".

※ Caution : Manual charging should be performed while the breaker is in opening state.

Automatic Storage Method

• It stores the energy needed for closing by using an electric storage motor , which is activated the closing circuit.

• When the breaker starts breaking, the motor is automatically activated to store the energy needed for closing.

• The storage motor is capable of storing energy 50 times. However, to do more than 50 times, it requires cooling for 10 minutes, as a minimum, preventing the motor from overheat.

Closing coil

• It is a Solenoid-State coil, which is operated by a closing signal coming from outside or by a pressing button attached to the front side.

Opening coil

• It is a Solenoid-State coil, which trips after receiving signals from OCR or from outside.