Function and purpose
Integrate overload protection, short circuit protection, overvoltage protection, undervoltage protection, voltage loss protection, automatic closing, control, and multiple communication functions
Detailed description
Parameters:
Frame current: 250-800A
Maximum Icu: 70kA
Working voltage: AC230V/240V, 400V/415V, 500V, 690V
Using ambient temperature: -40°C~+70°C
Advantages/core functions:
01 Comprehensive functions
Has more than ten protection functions such as overload long delay, short circuit short delay, short circuit instantaneous, grounding protection, overvoltage, undervoltage, phase loss, and zero break
02 Safe and reliable
Double protective structure of upper and middle covers effectively prevents external factors such as static electricity from causing failure of electronic components
03 Intelligent operation and maintenance
With RS485, HPLC A variety of communication methods can be used remotely to achieve intelligent unattended operation
Detailed parameters
< td>NM3LC-400< td>250/315/400/500/630< td>< td>36< /tr>
| Parameter classification | Parameter items | Parameters Value |
|---|
| Product Model | NM3LC-250 | |
| |
| NM3LC-630 | |
| NM3LC-W630 | |
| NM3LC-800 | |
| Frame current Inm(A) | | 250 |
| | 400 |
| | 630 |
| | | 630 |
| | 800 |
| Number of poles | | 3P+N |
| Rated current In(A) | | 50/63/80/100/125/160/200/250 |
| | 250/315/400 |
| |
| | 630 |
| | 630/700/800 |
| Rated insulation voltage Ue(V) | | 1000 |
| Rated impulse withstand voltage Uimp(kV) | | 8 |
| | 12 |
| | 12 |
| | 12 |
| | 12 |
| Rated working voltage Ue(V) | | AC380/400/415 |
| Rated operating frequency f(Hz) | | 50 |
| Rated residual short circuit making (breaking) capacity Icm(kA) | | 50/100/200/300/400/500/600/800/1000, adjustable, MCU automatic tracking, OFF |
| Rated residual non-operating current value I△n(mA) | | 0.8I△n |
| Auto-reclosing time (s) | | 20 ~60 |
| Residual current action time type | | Delay type/non-delay type |
| Delay characteristics (s) | | Breaking time (s) |
| 2I△n | Limit non-driving time |
| I△n | |
| 2I△n | ≤0.3 |
| 5I△n | ≤0.1 |
| 10I△n | ≤0.04 |
| Non-delay type | | |
| 0.06 | ≤0.5 |
| 0.1 | ≤0.2 |
| 0.2 | ≤0.15 |
| Delay type | | |
| | ≤0.8 |
| | ≤0.3 |
| | ≤0.3 |
| Applicable working environment temperature (℃) | | -25～+80 |
| Analysis capability code | C | |
| S | |
| Q | |
| Rated ultimate short circuit breaking capacity Icu(kA) | | 36 |
| | 50 |
| | 36 |
| 50 |
| | 36 |
| | 70 |
| < /td> | | 36 |
| | 50 |
| | 36 |
| | 50 |
| | 36 |
| | 70 |
| Rated operating short-circuit breaking capacity Ics(kA) | | 36 |
| | 36 |
| |
| | 50 |
| | 36 |
| | | 50 |
| | 36 |
| | 50 |
| | 36 |
| | 50 |
| Rated short-time withstand current Icw, 1s(kA) | | 3 |
| | 8 |
| | 8 |
| | 10 |
| | 10 |
| Electrical life (times) | | 4000 |
| | 3000 |
| | 3000 |
| | 2000 |
| | 2000 |
| Outline and installation dimensions (mm) | Width (W) | 142 |
| Height (H) | 235 |
| Depth (D) | 101.5 |
| | 184 |
| | 330 |
| | 140.5 |
| | 240 |
| | 3 60 |
| | 157 |
| | 157 |
| Note: If selected OLED type, the working environment temperature is -40℃～+70℃ | | |
