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NDM2L Series Molded Case Residual Current Circuit Breaker
Updated:July 17,2026 17:45PM

NDM2L series molded case leakage circuit breakerthe rated insulation voltage of1000Vfor AC 50Hz or 60Hzrated working voltage 380V/400V/415Vdo not frequentconversion and the motor is not frequent use.Circuit breakers with overloadshort circuitand undervoltage protectionto protect the line and power equipment from damage.AC-type leakage circuit breakersto ensure that they are tripped with the remainingsinusoidal alternating current of the DC component without any sudden or slow rise.Type A leakage circuit breakers are guaranteed to be tripped with respect to the residualsinusoidal current and the residual pulsating direct current(with or without specifiedsuperposed DC component)that is suddenly applied or slowly raised.
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NDM2L
NDM2L

Features of NDM2L Series

  • NDM2L series of leakage circuit breakers,product structure requirements areintegrated structure with leakage alarm does not trip function

Technology data of NDM2L Series

NDM2L-125 Series
Rated Voltage(V) 380/400/415
Rated insolution Voltage Ui(V) 1000
Frame Size 125
Rated ultimate breaking capacity Icu(kA) NDM2L-125M&4P:52.5kA NDM2L-125H:85kA
Rated operated breaking capacity Ics(kA) NDM2L-125M&4P:35kA   NDM2L-125H:50kA
Operating cycles(times) Charged:8000 uncharged:20000
Pollution level
Rated insulation voltage Uimp 8kV
NDM2L-250 Series
Model NDM2L-250
Rated current of frame Inm(A) 250
Rated current In(A) 100,125,140,160,180,200,225,250
Rated insulation voltage Ui(ACV) 1000
Rated impulse withstand voltage Uimp(V) 8000
Rated working voltage Ue (ACV) 380/400/415
Utilization category A
Number of poles 3 4
Breaking capacity level M H /
Rated limit short-circuit breaking capacity Icu(kA) 52.5 85 52.5
Rated operating short-circuit breaking capacity Ics(kA) 35 50 35
Rated residual short-circuit making and breaking capacity I△m(kA) 0.25 Icu
NDM2L-400 Series
Model NDM2L-400
Rated current of frame Inm(A) 400
Rated current In(A) 225,250,315,350,400
Rated insulation voltage Ui(ACV) 1000
Rated impulse withstand voltage Uimp(V) 8000
Rated working voltage Ue(ACV) 380/400/415
Utilization category A
Number of poles 3 4
Breaking capacity level M H /
Rated limit short-circuit breaking capacity Icu(kA) 65 100 65
Rated operating short-circuit breaking capacity Ics(kA) 42 70 42
Rated residual short-circuit making and breaking capacity I△m(kA) 0.25 Icu
NDM2L-630 Series
Model NDM2L-630
Rated current of frame Inm(A) 630
Rated current In(A) 400,500,630
Rated insulation voltage Ui(ACV) 1000
Rated impulse withstand voltage Uimp(V) 8000
Rated working voltage Ue(ACV) 380/400/415
Utilization category A
Number of poles 3 4
Breaking capacity level M H /
Rated limit short-circuit breaking capacity Icu(kA) 65 70 65
Rated operating short-circuit breaking capacity Ics(kA) 42 70 42
Rated residual short-circuit making and breaking capacity I△m(kA) 0.25 Icu

Datasheet of NDM2L Series

NDM2L-125-Series-MCCB-Datasheet.pdf
NDM2L-250-Series-MCCB-Datasheet.pdf
NDM2L-400-Series-MCCB-Datasheet.pdf
NDM2L-630-Series-MCCB-Datasheet.pdf
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