YFM2LED Electronic Leakage Protection Circuit Breaker

This series of circuit breakers is suitable for low voltage distribution system. lts ratedinsulation voltage is 800V, suitable for Ac 50Hz, rated working voltage to 690V, rated currentto 800A circuit for infrequent conversion and motor infrequent start. The circuit breaker hasover voltage protection, under voltage protection, lack of phase protection, overload loncdelay inverse time, short circuit short delay inverse time, short circuit short delay fixed timeshort circuit instantaneous and under voltage protection, leakage trip protectioncommunication function, can protect the line and power equipment from damage.The product meets the standard: GB 14048.2

DL/T 2018 Communication protocol for moulded case circuit breakers

  • YFM2LED Electronic Leakage Protection Circuit Breaker
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YFM2LED Electronic Leakage Protection Circuit Breaker
YFM2LED Electronic Leakage Protection Circuit Breaker
YFM2LED Electronic Leakage Protection Circuit Breaker
YFM2LED Electronic Leakage Protection Circuit Breaker
YFM2LED Electronic Leakage Protection Circuit Breaker
YFM2LED Electronic Leakage Protection Circuit Breaker

Specification Parameter

Model numberParameter description
Bracket rating Current Inm(A)125,250,400,630,800
Rated current In(A)0.4-1.0 Inm(A)Continuously adjustable
Rated voltage UeAC400V
Rated insulation voltage Uimp12000V
Rated insulation voltage Ui800V
Rated operating short-circuit breaking capacity IcsL:Ics:25kA;M: Ics:35kA
Rated limit short-circuit breaking capacity IcsL:Ics:35kA;M: Ics:50kA
Overload delay time(s)3-18s
Short circuit delay multiple(xln)2-12
Short circuit Delay time(ms)30-600
Short circuit instantaneous multiple(xln)4-14
Number of poles3,3P+N,4P
Overvoltage action value(V)Default 285±5%(user can adjust)
Undervoltage action value(V)Default 165±5%(user can adjust)
Out-of-phase action value(V)Default 120±5%(user can adjust)
Product usage categoryA
Rated residualoperating current(mA)I△nThe  gear  value  is  optional,and  8  groups  of  parameter  values
can   be   customized   according   to   customer   requirements
Rated residual inactive current(mA)I△no=50%1△n
Rated limit no drive time(s)The  gear  value  is  optional,and  3  groups  of  parameter  values can   be   customized   according   to   customer   requirements
Rated short circuit on remaining(points)I△m=25%lcu


Product Advantage

The product meets the standard: GB 14048.2,DL/T 2018 Communication protocol for moulded case circuit breakers

Product Advantage
The circuit breaker hasover voltage protection, under voltage protection, lack of phase protection, overload loncdelay inverse time, short circuit short delay inverse time, short circuit short delay fixed timeshort circuit instantaneous and under voltage protection, leakage trip protectioncommunication function, can protect the line and power equipment from damage.

Outline And Mounting Dimensions

Model numberOverall dimensionMounting dimension

Front wiring
WLHW1L1H1H2H3L2ABd
3P4P3P4P
YFM2LED-12592 122 150 87 60 255 110 24 24 134 30 60 129 
YFM2LED-250105 142 165 95 70 365 110 24 24 144 35 70 126 
YFM2LED-400150 198 257 112 87 457 150 44 44 225 47 94 194 
YFM2LED-630-800210 280 280 121 140 480 155 44 44 243 70 140 243 

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