| Model |
YZM3LE-250 |
YZM3LE-800 |
|
Pole Number |
1P+N, 3P+N |
| Rated Voltage Ue (V) |
AC400 |
| Rated Current (A) |
125 |
250 |
400 |
630 |
800 |
| Rated Insulation Voltage Ui (V) |
1000 |
| Rated Impulse Withstand Voltage Uimp (kV) |
8 |
| Arcing Distance (mm) |
≤50 |
≤100 |
| Rated Ultimate Short-Circuit Breaking Capacity |
50/65 |
50/65 |
65/85 |
65/85 |
100 |
| Rated Service Short-Circuit Breaking Capacity |
35/50 |
35/50 |
50/65 |
50/65 |
65 |
| Rated Short-Time Withstand Current Icw |
5000A/1S |
10000A/1S |
| Residual Current Breaking Capacity I△m |
25%Icu |
| Residual Current Operating Characteristic |
Type AC |
| Rated Residual Operating Current I△ (mA) |
50/100/200/300/500/800/1000, Automatic, OFF |
| Residual Operating Time Characteristic |
Delayed, Non-delayed |
| Breaking Time (S) |
Delayed: ≤0.3/≤0.5; Non-delayed: ≤0.3 |
| Limit Non-operation Time (S) |
2I△n: 0.06/0.2 |
| Automatic Reclosing Time (S) |
20～60 |
| Number of Energized Operations |
1500 |
1000 |
1000 |
500 |
| Number of De-energized Operations |
8500 |
7000 |
4000 |
2500 |
| Protection |
Short-Time Delay Operating Current Setting Value Ir2 |
2Irl, 3Irl, 4Irl, 5Irl, 6Irl, 7Irl, 8Irl, 9Irl, 10Irl, 11Irl, 12Irl optional, default 6Irl |
| Short-Time Delay Time Setting Value ts |
0.03s～0.6s continuously adjustable, default 0.2S |
| Short-Circuit Short-Time Delay Operating Characteristic |
No operation at ≤0.8Ir2, delayed operation at >1.2Ir2 (Calculation of short-circuit short-time delay time: T1 = (8Ir1/I)²×Ts, and T1≥300ms) |
| Instantaneous Operating Current Setting Value Ir3 |
4Irl, 5Irl, 6Irl, 7Irl, 8Irl, 9Irl, 10Irl, 11Irl, 12Irl, 13Irl, 14Irl optional, default 10Irl. |
| Short-Circuit Instantaneous Operating Characteristic |
No operation at ≤0.8Ir3, operation at >1.2Ir3, tripping time 40mS |
| Overcurrent and Overload Protection |
40A～125A continuously adjustable, default 125A. |
100A～250A continuously adjustable, default 250A. |
200A～400A continuously adjustable, default 400A. |
315A～630A continuously adjustable, default 630A. |
320A～800A continuously adjustable, default 800A. |
| Overload Protection Characteristic |
For In≤63A: 1.05In (cold state) ≥1h no operation, 1.30In (hot state) ＜1h operationFor In＞63A: 1.05In (cold state) ≥2h no operation, 1.30In (hot state) ＜2h operationCalculation of overload long-time delay time: T1 = (6Ir1/I)²×Tr1 |
| Delay Time Setting Value Tr1 |
3s～18s continuously adjustable, default 3S |
| Phase Failure Protection |
10～120V, default 120V, function off. |
| Neutral Loss Protection |
Detect neutral wire breakage fault at the outlet end, cut off the fault or alarm according to preset settings |
| Overvoltage Protection |
242～350V, default 275V, function off. |
| Undervoltage Protection |
120～190V, default 165V, function off. |
| Automatic Reclosing |
Equipped with one-time automatic reclosing, manual recovery required after latching, the function of enabling and disabling automatic reclosing can be set. |
| Residual Current Protection |
50mA, 100mA, 200mA, 300mA, 500mA, 800mA, 1000mA, OFF, Automatic optional; default 500mA for 125-400A, default 800mA for 30-800A |
| Residual Current Protection Operating Characteristic |
No operation at 0.5I△n, operation at 0.8～0.9I△n |
| Overload Protection Characteristic |
Non-delayed type (maximum breaking time): 1I△n: 0.3s; 2I△n: 0.15s; 5I△n: 0.04s; 10I△n: 0.04s.Delayed type: 1I△n: 0.5s; 2I△n: 0.2s; 5I△n: 0.15s; 10I△n: 0.15s. |
| Phase Failure Protection |
For 3P+N products, the circuit breaker operates (≤1s) when any phase is missing |
| Remote Control |
Remote Opening |
Control circuit breaker opening via remote command |
| Remote Closing |
Control circuit breaker closing via remote command |
| Measurement |
Voltage |
Accuracy ±1% |
| Current |
Accuracy ±1% |
| Power |
Accuracy ±1% |
| Electric Energy |
Accuracy ±1% |
| Communication |
Communication Interface |
RS485 (standard configuration), HPLC optional. |
| Communication Protocol |
DL/T 645-2007 |
| Communication Baud Rate |
Default 9600bps, optional 2400bps, 4800bps, 9600bps |
| Human-Machine Operation |
Display, Monitoring, Recording, Storage |
With functions of displaying setting values such as residual current, and displaying, monitoring and recording trip times of residual current and fault phase of low-voltage power grid. |
| Display and Monitor Line Operating Voltage and Current |
With functions of displaying and monitoring line operating current and voltage. Equipped with Chinese LCD display, which can display real-time operating status of the circuit breaker, such as current current, voltage, active power, residual current, switch opening/closing state, protection setting parameters, protection, alarm, trip event and other functions. |
| Button |
Set parameters, query and display data |
