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The Westhomes WSB1L Series 63A 3P+N Residual Current Circuit Breaker (RCCB) is a high-performance safety device specifically engineered for AC 50Hz power distribution systems with a rated working voltage of AC240/400V and a maximum rated current of 63A.
This 3P+N (Three Poles + Neutral) RCCB is designed to provide comprehensive protection for personnel and electrical installations by detecting abnormal leakage currents and promptly cutting off the power supply.
Ideal for both commercial and residential applications, the WSB1L 63A RCCB is equipped with multiple safety functions including overload, short circuit, and residual current protection. When a leakage current or accidental electric shock occurs, the device ensures rapid disconnection, minimizing the risk of injury and equipment damage.
Crafted with high-impact resistant and flame-retardant housing, the WSB1L RCCB combines durability with a compact structure, making it easy to install in tight spaces such as distribution panels and consumer units. Its advanced internal structure ensures long-term performance stability and reliable tripping accuracy.
Whether used in low-voltage electrical systems or integrated into smart energy distribution networks, the WSB1L 63A 3P+N RCCB ensures optimal safety, efficiency, and reliability in every environment.
| Rated Current | 16, 20, 25, 32, 40, 50, 63A |
| Rated Voltage Ue | AC240V (1P+N, 2P); AC400V (3P+N, 4P) |
| Rated Insulation Voltage Ui | AC415 |
| Rated Impulse Withstand Voltage Uimp | 4kV |
| Rated Frequency | 50/60Hz |
| Number of Poles | 1P+N, 3P+N |
| Module Size | 36mm, 72mm |
| Circuit Type | AC type, A type, B type |
| Breaking Capacity | 6000A, 10000A |
| Rated Residual Current I△n | 10mA, 30mA, 100mA, 300mA |
| Rated Residual Operation Current | 10, 30, 100, 300mA |
| Optimum Operation Temperature | -5ºC to 40ºC |
| Terminal Tightening Torque | 2.5-4N/m |
| Terminal Capacity (top) | 25mm² |
| Terminal Capacity (bottom) | 25mm² |
| Electro-mechanical Endurance | 4000 cycles |
| Mounting | 35mm DIN rail |
| The very new tripping structure makes more in safety | |
| Suitable Busbar | PIN busbar |
| Standard | IEC61008-1 |
| Model NO. | WSB1L |
| Arc-extinguishing Medium | Air |
| Structure | MCB |
| Type | Circuit Breaker |
| Certification | ISO9001-2000, CE, CB, CCC |
| Ka | 6ka, 10ka |
| Voltage | AC240V/AC400V |
| Specification | 10A-63A |
| Origin | China |
| Production Capacity | 365000 |
| Speed | Normal Type Circuit Breaker |
| Installation | Fixed |
| Poles Number | 1p+N, 3p+N |
| Function | Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection) |
| Production Line | 100% Automic |
| Cooperation Type | OEM ODM |
| Transport Package | Standard |
| Trademark | Westhomes |
| HS Code | 8536300000 |
Westhomes® is a professional manufacturer for low voltage and high voltage electrical products with a thirty-year history.
Main supplier of state-owned companies like China Stae Grid, China Southern Power Grid through bidding with bunches of test certificates, sales records and operation performance to support.
Enough investment for research and development for the products innovation.
18 months from the date of receivement
Depends on the required quantity and delivery urgency, both international express like UPS / DHL / EMS / HK EMS / FedEx / TNT (door to door service) and normal sea shipping & air freight also avaliable.
Up to the client
We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.
First to send an inquiry via made-in-china platform or directly to the contact e-mail address. All the following thing is the communication between us.
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