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Circuit breaker
Circuit breaker
Circuit breaker

Scope of application:

LSKM1L Series residual current circuit breaker(RCCB) is mainly applied to power distribution network of AC50Hz, rated operated voltage up to 400V, rated operate current up to 800A. RCCB has indirect touch protection for human, and protect the device against the fire danger caused by insulation damage and grounding faults.

The product meets the following standards:

GB14048.2-2008

GB/Z6829-2008

GB13955-2005

GB/T22710-2008

Main functions and features:

u Electronic overcurrent trip and adjustable rated current.

u Multiple protections such as overload, short circuit delay, etc.

u Real-time display of current ,voltage and leakage current value.

u Automatic tracking of leakage and real-time monitoring of leakage current of protected line.

u Automatic and manual on-off switch.

u Remote control and bus communication function.

u Intelligent digital circuit.

u Wide temperature working range.

Main Technical parameters:

 

Specification Type

LSKM1L-125

LSKM1L-250

LSKM1L-400

LSKM1L-630

S type

H type

S type

H type

S type

H type

S type

H type

Current shell frame(A)

125

250

400

630

Extreme number

3P+N, 4P

3P+N, 4P

3P+N, 4P

3P+N, 4P

Rated operating voltage

AC 400 50Hz

Rated insulation voltage

AC 800

Rated impulse withstand voltage

8000

Arcing distance

≯50

≯50

≯100

≯100

Ultimate short circuit breaking capacity

35

50

50

50

50

65

50

65

Running short circuit breaking capacity

25

35

35

50

35

50

35

50

Rated residual short-circuit capability

25% lcu

Residual current operating characteristics

AV type

Rated residual operating current

50/100/200/300/400/500/600/800 MCU Automatic tracking

Residual action time characteristics

Delay type (0.5s 1s 1.5s)

Delay type limit non-actuating time

△t ≥0.06 0.2  0.3:2 |△n

Break time

0.5s 1s 1.5s

Automatic reclosing time

20~60

Operating performance(time)

power on

1500

1000

1000

1000

Power off

8500

7000

4000

4000

Total number

10000

8000

5000

5000

Overvoltage protection value

(220~350) ±5%

Undervoltage protection value

(150~220) ±5%

Joint control delay time

≤40ms

Communication delay time

≤200ms



Product details
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