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The Westhomes WSB1L Series 125A 2P RCCB (Residual Current Circuit Breaker) is a high-performance safety solution designed for modern low-voltage distribution systems.
With its compact footprint and intelligent safety features, the WSB1L 125A 2P RCCB offers the optimal balance of protection, durability, and ease of installation, making it a top choice for global electrical distribution markets.
Engineered for AC 50Hz networks with a rated working voltage of AC240/400V, this 2-pole RCCB supports current ratings up to 125A, offering enhanced protection against overload, short circuits, and leakage faults.
When abnormal leakage current or personal electric shock occurs, this 125A 2P RCCB can rapidly disconnect the power supply within milliseconds, ensuring the safety of personnel and electrical equipment. It is an essential protective device for residential, commercial, and industrial power distribution systems.
Manufactured with an advanced internal structure, the WSB1L series features a compact design, high-impact-resistant housing, and flame-retardant materials, ensuring long-lasting reliability even under harsh operating conditions. This miniature circuit breaker is ideal for distribution boxes, panel boards, and branch circuit protection where safety and performance are critical.
| 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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