MCCB circuit breaker WLM6LY-125A-4300 4P WLM6L Series RCCB earth leakage protection type 400V 160A 4 Poles
Rated Current : 125A Number Of Poles : 3P/4P Rated Working Voltage : 400V/690V
Residual Current Circuit Breaker (RCCB) and its Advantages and Functions
Residual Current Circuit Breaker (RCCB) is a crucial electrical safety device that plays a significant role in protecting people and property from electrical hazards. It is designed to detect and interrupt abnormal current flows, such as leakage currents, which can occur when there is a fault in the electrical system. RCCBs are widely used in residential, commercial, and industrial settings to provide an additional layer of protection against electric shock and fire hazards. In this article, we will explore the advantages and functions of RCCBs, as well as their importance in ensuring electrical safety.
Main performance index of WLM6L series circuit breaker
| WLM6L Moulded Case Circuit Breaker | 125 | ||||||||||||
| Rated current (A) of circuit breaker 40℃ | Fix type | 16-20-25-30-32-40-50-60-63-75-80-90-100-125 | |||||||||||
| Lcd type | – | ||||||||||||
| Rated insulation voltage Ui (V) | 1000 | ||||||||||||
| Rated impulse withstand voltage (kV) | 8 | ||||||||||||
| Rated operational voltage Ue(V),AC 50/60Hz | AC230V(2P)/AC400(3P、3P+N、4P) | ||||||||||||
| Breaking capacity code | C | S | M | H | |||||||||
| Number of poles | 2P | ■ | ■ | ■ | ■ | ||||||||
| 3P | ■ | ■ | ■ | ■ | |||||||||
| 4P | ■ | ■ | ■ | ■ | |||||||||
|
Rated ultimate short-circuit breaking capacity Icu (kA) |
AC380/400/415V | 5 | 8 | 25 | 35 | ||||||||
| AC380/400/415V | 3 | 5 | 18 | 35 | |||||||||
|
Rated residual making and breaking capacity I△ m(kA) |
AC220/230/240V | 12.5 | 12.5 | 12.5 | 12.5 | ||||||||
| Limit non-actuating time △ t (ms) | 0.06s/0.2s/0.5s/1s | ||||||||||||
| Leakage alarm non-tripping function | □ | ||||||||||||
| overcurrent tripping type | Themal type | ||||||||||||
| Leakage tripping type | Electronic Type | ||||||||||||
| Residual current type | AC | ||||||||||||
| 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 | |||||||||||||
| 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 (2P/3P/4P) | 50/75/100 | |||||||||||
| Height | 130 | ||||||||||||
| Depth | 68 | ||||||||||||
| Weight | |||||||||||||
| Distribution protection | 2P | – | |||||||||||
| 3P | 0.913 | ||||||||||||
| 4P | 1.161 | ||||||||||||