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
Specification Parameter
| Model number | Parameter 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 Ue | AC400V |
| Rated insulation voltage Uimp | 12000V |
| Rated insulation voltage Ui | 800V |
| Rated operating short-circuit breaking capacity Ics | L：Ics:25kA;M： Ics:35kA |
| Rated limit short-circuit breaking capacity Ics | L：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 poles | 3,3P+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 category | A |
| Rated residualoperating current(mA)I△n | The 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 |
Outline And Mounting Dimensions
| Model number | Overall dimension | Mounting dimension | ||||||||||||
| Front wiring | ||||||||||||||
| W | L | H | W1 | L1 | H1 | H2 | H3 | L2 | A | B | d | |||
| 3P | 4P | 3P | 4P | |||||||||||
| YFM2LED-125 | 92 | 122 | 150 | 87 | 60 | 255 | 110 | 24 | 24 | 134 | 30 | 60 | 129 | 4 |
| YFM2LED-250 | 105 | 142 | 165 | 95 | 70 | 365 | 110 | 24 | 24 | 144 | 35 | 70 | 126 | 5 |
| YFM2LED-400 | 150 | 198 | 257 | 112 | 87 | 457 | 150 | 44 | 44 | 225 | 47 | 94 | 194 | 7 |
| YFM2LED-630-800 | 210 | 280 | 280 | 121 | 140 | 480 | 155 | 44 | 44 | 243 | 70 | 140 | 243 | 7 |
