MCCB circuit breaker WLM6LY-800A-4300 4P WLM6L Series earth leakage protection type RCCB 400V 800A 3 poles 4 Poles
Rated Current : 800A Number Of Poles : 3P/4P Rated Working Voltage : 400V/690V
Function of RCCB
Ground Fault Protection: RCCBs are specifically designed to provide protection against ground faults by detecting and interrupting current leakage to the ground. This function is crucial in preventing electric shock and ensuring the safety of individuals working with or around electrical equipment.
Sensitivity Adjustment: Some RCCBs are equipped with adjustable sensitivity settings, allowing users to customize the device’s response to leakage currents. This feature enables the RCCB to cater to specific applications and environments where different levels of sensitivity may be required.
Main performance index of WLM6LY series circuit breaker
| WLM6LY Moulded Case Circuit Breaker | 800 | ||||||||||||
| Rated current (A) of circuit breaker 40℃ | Fix type | 500-630-700-800 | |||||||||||
| Lcd type | 500-630-700-800 | ||||||||||||
| Rated insulation voltage Ui (V) | 1000 | ||||||||||||
| Rated impulse withstand voltage (kV) | 8 | ||||||||||||
| Rated operational voltage Ue(V),AC 50/60Hz | 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 | – | – | 50 | 65 | ||||||||
| AC380/400/415V | – | – | 35 | 50 | |||||||||
|
Rated residual making and breaking capacity I△ m(kA) |
AC220/230/240V | – | – | 16.25 | 16.25 | ||||||||
| 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) | 210/280 | |||||||||||
| Height | 275.5 | ||||||||||||
| Depth | 103 | ||||||||||||
| Weight | |||||||||||||
| Distribution protection | 2P | – | |||||||||||
| 3P | 8.473 | ||||||||||||
| 4P | 11.245 | ||||||||||||