MCCB circuit breaker WLM6-400A-3300 3P/4P WLM6 Series 400vac Thermal magnetic type moulded case circuit breaker 400V/690V 400A 3/4 Poles
MCCB Highlights
Our commitment to excellence
is evident in our meticulous selection of materials. We utilize
high-quality high carbon steel and low carbon cold rolled steel to
ensure the utmost durability and performance of our products. The main
iron parts are crafted from iron base materials, specifically cold
rolled steel 10 # steel, known for its exceptional strength and
resilience. By employing A+ materials throughout our manufacturing
process, we guarantee the reliability and longevity of our products.
Furthermore, our dedication to enhancing the properties of our
materials is exemplified through the implementation of QPQ salt bath
composite treatment. This advanced treatment significantly improves the
wear resistance, corrosion resistance, and fatigue resistance of the
metal surface, ensuring that our products can withstand the harshest
operating conditions. As a result, the strength, mechanical life, and
electrical life of our parts are enhanced by more than 10%, providing
our customers with superior performance and peace of mind.
In summary, our unwavering commitment to utilizing top-quality
materials and employing advanced treatments underscores our dedication
to delivering products that exceed industry standards and meet the
diverse needs of our customers.
Main performance index of WLM6 series circuit breaker
| WLM6 Moulded Case Circuit Breaker | 400 | |||||||||||||
| Rated operating current In (A),40℃ | Magnetic Type | 250-315-350-400 | ||||||||||||
| Thermal-magnetic type | 250-315-350-400 | |||||||||||||
| Adjustable type | 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 | |||||||||||||
Overall and installation dimensions of circuit breaker
