Adjustable Mccb WLM6RT-250A-3300 3P/4P WLM6RT Series industrial thermal magnetic type circuit breaker 400V/690V mccb 250A 3/4 Poles
Advantages of Adjustable Type of MCCB
The adjustable type of MCCB presents several advantages that make it a preferred choice for various electrical applications. One of the primary advantages is its adaptability to diverse electrical environments. With the ability to customize overload and instantaneous protection settings, the MCCB can be fine-tuned to suit the specific characteristics of the electrical load it is safeguarding. This adaptability ensures optimal protection without compromising the operational efficiency of the connected equipment.
Furthermore, the adjustable type of MCCB offers enhanced precision in protective functions. Traditional fixed settings may not always align with the unique requirements of an electrical system. By allowing adjustments to the overload and instantaneous protection settings, the MCCB can be precisely calibrated to provide the most effective and accurate protection. This level of precision minimizes the risk of both under-protection and unnecessary tripping, thereby improving the overall reliability of the electrical system.
Main performance index of WLM6RT series circuit breaker
| WLM6RT Moulded Case Circuit Breaker | 250 | |||||||||||||
| Rated operating current In (A),40℃ | Thermal-magnetic type | 100-125-140-160-180-200-225-250 | ||||||||||||
| WLM6RT/Adjustable type | 100-125-140-160-180-200-225-250 | |||||||||||||
| WLM6RT/A/Adjustable type Ir | 100-125-140-160-180-200-225-250 | |||||||||||||
| WLM6RT/P/Adjustable type li | 100-125-140-160-180-200-225-250 | |||||||||||||
| 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 | 30 | 50 | 65 | 70 | – | ||||||||
| AC380/400/415V | 15 | 30 | 50 | 65 | 100 | |||||||||
| AC440V | – | – | – | – | – | |||||||||
| AC500V | – | – | – | – | 60 | |||||||||
| AC660/690V | 5 | 8 | 15 | 20 | 20 | |||||||||
| Number of poles | AC220/230/240V | 20 | 25 | 40 | 50 | – | ||||||||
| AC380/400/415V | 10 | 15 | 35 | 50 | 100 | |||||||||
| AC440V | – | – | – | – | – | |||||||||
| AC500V | – | – | – | – | 60 | |||||||||
| AC660/690V | 3 | 4 | 10 | 15 | 20 | |||||||||
| Standard | IEC/EN 60947-2 | |||||||||||||
| Utilization category | A | |||||||||||||
| Ambient temperature | -40℃ ~+70 ℃ | |||||||||||||
| Safety of insulation | ■ | |||||||||||||
| Arcing distance | 0 | |||||||||||||
|
Mechanical life (CO recycle) |
Maintenance | 15000 | ||||||||||||
|
Electrical life (CO recycle) |
AC415V,In | 8000 | ||||||||||||
| AC690V,In | 2000 | |||||||||||||
| 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) | 105/140 | ||||||||||||
| Height | 165/157(Q type) | |||||||||||||
| Depth | 68/88(H&Q type) | |||||||||||||
| Weight | ||||||||||||||
| Distribution protection | 1P | – | ||||||||||||
| 2P | – | |||||||||||||
| 3P | 1.933 | |||||||||||||
| 4P | 2.578 | |||||||||||||