Adjustable Mccb WLM6RT-160A-3300 3P WLM6RT Series thermal magnetic type mccb 400V/690V mccb 125A 3 Poles
WLM6RT Adjustable Type of MCCB Functions
The adjustable type of MCCB is designed to offer flexibility in its protective functions. One of its key functions is the ability to adjust the overload settings. This feature allows the MCCB to be tailored to the specific needs of the electrical system it is protecting. The overload settings typically include 0.7ln, 0.8ln, 0.9ln, and 1.0ln, where “ln” represents the rated current of the MCCB. By being able to adjust the overload settings, the MCCB can provide optimal protection for the connected electrical equipment and prevent unnecessary tripping during normal fluctuations in current.
In addition to overload protection, the adjustable type of MCCB also offers instantaneous protection with adjustable settings. Instantaneous protection is crucial for rapidly detecting and interrupting short-circuit faults. The adjustable instantaneous protection settings, such as 7ln, 8ln, 9ln, and 10ln, allow for precise calibration based on the specific requirements of the electrical system. This level of customization ensures that the MCCB responds swiftly to short-circuit faults while minimizing the risk of nuisance tripping.
Main performance index of WLM6RT series circuit breaker
| WLM6RT Moulded Case Circuit Breaker | 160 | ||||||||||||
| Rated operating current In (A),40℃ | Thermal-magnetic type | 16-20-25-32-40-50-63-80-100-125-160 | |||||||||||
| WLM6RT/Adjustable type | 25-32-40-50-63- 80-100-125-140-160 | ||||||||||||
| WLM6RT/A/Adjustable type Ir | 25-32-40-50-63- 80-100-125-140-160 | ||||||||||||
| WLM6RT/P/Adjustable type li | 25-32-40-50-63- 80-100-125-140-160 | ||||||||||||
| 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 | |||||||||
| Number of poles | 1P(Adjutable has no this type) | – | – | – | – | ||||||||
| 2P | ■ | ■ | – | – | |||||||||
| 3P | ■ | ■ | ■ | ■ | |||||||||
| 4P | ■ | ■ | ■ | ■ | |||||||||
| Number of poles | AC220/230/240V | – | – | – | – | ||||||||
| AC380/400/415V | 30 | 35 | 50 | 65 | |||||||||
| AC440V | – | – | – | – | |||||||||
| AC500V | – | – | – | – | |||||||||
| AC660/690V | 8 | 6 | 10 | 15 | |||||||||
| Number of poles | AC220/230/240V | – | – | – | – | ||||||||
| AC380/400/415V | 20 | 25 | 35 | 50 | |||||||||
| AC440V | – | – | – | – | |||||||||
| AC500V | – | – | – | – | |||||||||
| AC660/690V | 2 | 3 | 5 | 10 | |||||||||
| 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 (1P/2P/3P/4P) | -/60/90/120 | |||||||||||
| Height | 152 | ||||||||||||
| Depth | 68/82 | ||||||||||||
| Weight | |||||||||||||
| Distribution protection | 1P | – | |||||||||||
| 2P | 1.1 | ||||||||||||
| 3P | 1.501 | ||||||||||||
| 4P | 1.909 | ||||||||||||