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ASKM1L Thermal-Magnetic Molded Case Circuit Breaker with Residual Current Protection

ASKM1L Thermal-Magnetic Molded Case Circuit Breaker with Residual Current Protection

ASKM1L thermomagnetic leakage protection intelligent molded case circuit breaker(hereinafter referred to as MCCB)is a new type of circuit breaker designed and developed by our company using international advanced technology.MCCB is suitable for the distribution network of AC50Hz, rated insulation voltage 1000V,rated voltage 400V and rated current up to 630A.MCCB can be used for infrequent switching of lines and infrequent starting of motors.
MCCB has overload,short-circuit and under-voltage protection,can protect the line and power supply equipment from damage.Protection can also be provided against fire hazards that may be caused by long-standing ground faults that cannot be detected by over-current protection.

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FRAME

WIRING METHOD

OPERATION METHOD

APPLICABLE STANDARDS

GB14048.2、IEC60947.2

TECHNICAL DATA SHEET OFASKM1L THERMOMAGNETICLEAKAGE PROTECTION MOLDED CASE CIRCUIT BREAKER

Model

ASKM1L-125

ASKM1L-250

ASKM1L-400

ASKM1L-630

Frame rating current Inm(A)

125

250

400

630

Rated current In(A)

16 20 25 32
40 50 63 80
100 125

100 125 140
160 180 200
225 250

225 250 315 350 400

400 500 630

No.of poles

3/4

Rated insulation voltage Ui(V)

AC800

Ac800

Rated operational voltage Ue(V)

AC400

Rated impulse withstand voltage Uimp(V)

8000

Arc distance(mm)

≯50(0)**

≯100(0)**

Breaking capacity level

L

M

L

M

Ultimate short-circuit breaking capacity Icu(kA)

AC400V

35

50

35

50

Service short-circuit breaking capacity Ics(kA)

AC400V

22

35

50

35

Rated
residual
action
current
In(A)

AC type
residual current
protection

U type current tripper,non-delay time

0.03/0.1/0.3/0.5

一

V type current tripper,switchable between non-delay and delay

1.0/0.3/0.5

0.1/0.3/0.5

0.3/0.5/1

W type current tripper,switchable between non-delay and delay

0.3/1/3/10

1/3/10/30

A type residual
current protection

VA type current tripper,switchable between non-delay and delay

0.1/0.3/0.5

0.3/0.5/1

Use category

A

Rated residual non-action current I△no (mA)

½In

Rated residual short-circuit making(breaking)capacity Im(kA)

¼Icu

Operational
performance
(times)

Electrical service life(times of operation)

8000

7500

Mechanical service life(times of operation)-without maintenance

20000

10000

Mechanical service life(times of operation)-with maintenance

40000

20000

Outline
dimensions
(mm)

W(3P/4P)

92/122

107/142

150/198

210/280

L

150

165

257

280

H

92

90

106.5

115.5

Note: Choose the height of 6mm zero arc cover for 125 frame,7.5mm for 250 frame,9.3mm for 400 frame,9.5mm for 800 frame,realizing zero arc.

Note:1.when this series of three poles circuit breaker connected to a three-phase load,the load can not be connected the neutral pole,otherwise the circuit breaker will act falsely.

2.when this series of three poles circuit breaker connected to a single-phase load,connect the phase line to the left pole,and connect the neutral line to the right pole.Donot connect the center pole.