Adjustable Mccb WLM6RT-400A-3300 3P WLM6RT Series 400vac Thermal magnetic type moulded case circuit breaker 400V/690V MCCB 400A 3 Poles
Rated Current : 400A Number Of Poles : 3P / 4P Rated Working Voltage : 400V/690V
Advantages of Adjustable Type of MCCB
Another advantage of the adjustable type of MCCB is its ability to accommodate varying load conditions. Electrical systems often experience fluctuations in load, and the adjustable settings of the MCCB enable it to adapt to these changes. Whether the load increases or decreases, the MCCB can be adjusted to ensure consistent and reliable protection, thereby enhancing the stability of the electrical system.
Explanation of Load AdjustableLoad adjustable, as featured in the adjustable type of MCCB, refers to the capability of the MCCB to be adjusted according to the specific load conditions it is protecting. This feature is particularly significant in ensuring that the MCCB operates optimally under varying load scenarios.
Main performance index of WLM6RT series circuit breaker
| WLM6RT Moulded Case Circuit Breaker | 400 | |||||||||||||
| Rated operating current In (A),40℃ | Thermal-magnetic type | 250-315-350-400 | ||||||||||||
| WLM6RT/Adjustable type | 250-315-350-400 | |||||||||||||
| WLM6RT/A/Adjustable type Ir | 250-315-350-400 | |||||||||||||
| WLM6RT/P/Adjustable type li | 250-315-350-400 | |||||||||||||
| Electric characteristics | ||||||||||||||
| Rated insulation voltage Ui (V) | 1000 | |||||||||||||
| Rated impulse withstand voltage (kV) | 8 | |||||||||||||
| Rated operational voltage Ue(V),AC 50/60Hz | 380/400/415,440,500,660/690 | |||||||||||||
| Breaking capacity code | C | S | M | H | Q | |||||||||
| Number of poles | 1P(Adjutable has no this type) | – | – | – | – | – | ||||||||
| 2P | – | – | – | – | – | |||||||||
| 3P | ■ | ■ | ■ | ■ | ■ | |||||||||
| 4P | ■ | ■ | ■ | ■ | ■ | |||||||||
| Number of poles | AC220/230/240V | – | 50 | 65 | 70 | – | ||||||||
| AC380/400/415V | – | 30 | 70 | 100 | 150 | |||||||||
| AC440V | – | – | – | – | – | |||||||||
| AC500V | – | – | – | – | 65 | |||||||||
| AC660/690V | – | 8 | 20 | 25 | 20 | |||||||||
| Number of poles | AC220/230/240V | – | – | – | – | – | ||||||||
| AC380/400/415V | – | 15 | 50 | 70 | 150 | |||||||||
| AC440V | – | – | – | – | – | |||||||||
| AC500V | – | – | – | – | 65 | |||||||||
| AC660/690V | – | 4 | 10 | 4 | 20 | |||||||||
| Standard | ||||||||||||||
| Utilization category | A | |||||||||||||
| Ambient temperature | ||||||||||||||
| Safety of insulation | ■ | |||||||||||||
| Arcing distance | 0 | |||||||||||||
|
Mechanical life (CO recycle) |
Maintenance | 15000 | ||||||||||||
|
Electrical life (CO recycle) |
AC415V,In | 8000 | ||||||||||||
| AC690V,In | 1500 | |||||||||||||
| Release units | ||||||||||||||
| Distribution protection | TM | ■ | ||||||||||||
| Motor protection | TM | ■ | ||||||||||||
| Mounting and connection | ||||||||||||||
| Fixed | Front connection | ■ | ||||||||||||
| Rear connection | ■ | |||||||||||||
| Plug-in | Front connection | ■ | ||||||||||||
| Rear connection | ■ | |||||||||||||
| Draw-out | Front connection | – | ||||||||||||
| Rear connection | – | |||||||||||||
| DIN rail | Front connection | ■ | ||||||||||||
| Dimension | ||||||||||||||
|
Dimension (mm) W×H×D |
Width (3P/4P) | 140/184 | ||||||||||||
| Height | 257 | |||||||||||||
| Depth | 103/111(Q type) | |||||||||||||
| Weight | ||||||||||||||
| Distribution protection | 1P | – | ||||||||||||
| 2P | – | |||||||||||||
| 3P | 4.68 | |||||||||||||
| 4P | 6.314 | |||||||||||||