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630A 4P AC 690V Fixed Type Air Circuit Breaker

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  • WCW1

Key Information

WCW1

Pole: 3P, 4P

Voltage: AC400V/690V

kA: 25-85kA

Inm(A): 1000, 2000, 3200,  6300

In(A): 200A--6300A

General

WCW1 series intelligent universal circuit breaker (ACB for short) applies at distribution network of AC50Hz, rated voltage upto 600V(690V) and below, rated current 200A to 6300A, to distribute power and protect the line and power supply equipments from fault demage of overload, under voltage, short circuit, single phase grounding. The ACB has function of intelligent protection with accurate selection to increase power supply reliability thus to avoid unnecessary power shut down. It has open communication interface to make "Four-remote Control" to fulfill requirements of control center and automatic system. The ACB's impulse withstand voltage is 800V when at altitude 2000 meter(clarify according to standards of different altitudes, not over 12000).

Main technical parameters
Current rating table of the circuit breaker

Frame level rated current Inm (A)

Rated current In (A)

1000

200, 400, 630, 800, 1000

2000

630, 800, 1000, 1250, 1600, 2000

3200

2000, 2500, 2900, 3200

4000

3200, 3600, 4000

6300

4000, 5000, 6300

Table of rated short circuit breaking capacity and short time withstand current of circuit breaker, of which flashover distance is "Zero" (namely no arc external of circuit breaker)

Frame level rated current Inm (A)

1000

2000

3200

4000

6300

Rated ultimate short circuit breaking capacity Icu (kA) O-CO

400V

42

65

80

80

120

690V

25

50

65

65

85

Rated operation short circuit breaking capacity Ics (kA) O-CO-CO

400V

30

40

50

50

100

690V

20

40

50

50

75

Rated short time withstand current Icw (kA) 1s, delay 0.4s, 0-CO

400V

30

40

65

65

100

690V

20

40

50

50

75

 

 


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