WRO1-63 1P+N Residual Current Breaker with Overvoltage Protection | 6kA Breaking Capacity
All-in-one protection device with overvoltage protection. 6kA breaking capacity, selectable leakage sensitivity. Space-saving DIN rail design.
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All-in-one protection device with overvoltage protection. 6kA breaking capacity, selectable leakage sensitivity. Space-saving DIN rail design.
All-in-one protection device with overvoltage protection. 6kA breaking capacity, selectable leakage sensitivity. Space-saving DIN rail design.

The WRO1-63 1P+N is an advanced Residual Current Circuit Breaker with Integral Overcurrent Protection (RCBO) that also features integrated overvoltage protection, making it a comprehensive safety solution for single-phase applications.
Key Features:
4-in-1 Comprehensive Protection: Integrates overload protection, short-circuit protection, earth leakage protection, and overvoltage protection in a single compact module, saving valuable panel space.
Adjustable Residual Current Sensitivity: Available in three sensitivity options (30mA for personnel protection, 100mA for combined protection, 300mA for fire prevention) to match specific application requirements.
Integrated Overvoltage Protection: Safeguards connected equipment against dangerous voltage surges and fluctuations, preventing damage to sensitive electronics and appliances.
Compact 1P+N Design: Space-saving single-module width design, ideal for use in standard distribution boards where space is limited.
Applications:
Residential Electrical Panels
Home Office & Sensitive Electronics
Telecommunications Equipment
Renewable Energy Systems




| Standard | IEC/EN61009-1 |
| Protection | Ground fault, Overcurrent and short circuit |
| Type of trip | Ground fault:Electronic/Magnetic |
| Overload and short circuit:Thermo-magnetic | |
| No.of poles | 1P+N,1 Module,Nline with disconnected |
| Type | AC,A |
| Rated current In | 6,10,16,20,25,32,40A |
| Rated sensitivity currents I△n | 10,30,100,300mA |
| Residual current off-time under l△n | ≤0.1s |
| Reted residual making and breaking capacity (I△m) | 500A(In≤50A) |
| Rated voltage Ue | 240V~ |
| Rated frequency | 50/60Hz |
| Rated breaking capacity | 6KA |
| Energy limiting class | 3 |
| Rated impulse withstand voltage(1.2/50)Uimp | 4,000V |
| Dielectric test voltage at ind.Freq.for 1min | 2kV |
| Thermal release characteristic | (1.13-1.45)x In |
| Magnetic release characteristic | B:(3-5)x In,C:(5-10)x In |
| Electrical life | 4,000 Cycles |
| Mechanical life | 10,000 Cycles |
| Contact position indicator | Yes |
| Protection degree | IP20 |
| Ambient temperature | -25℃~+40℃,Max.95%humidity |
| Terminal connection type | Cable/Pin-type busbar |
| Max.terminal size for cable | 16mm2 |
| Max.tightening torque | 2.5N.m |
| Installation | Mounting on 35mm DIN rail |
| Connection | From top and bottom |
| Selling Units | Single item |
| Quantity (pieces) | 1 – 1,000 | > 1,000 |
| Lead time (days) | 15 | To be negotiated |
| Type | MCB, AC MCB, RCBO |
| BCD Curve | B, C |
| Rated Frequency (Hz) | 50hz/60hz |
| Material | Copper |
| Application | Circuit-Breaking, Industrial, Households, Protection, Electric Power |
| Model Number | WRO1-63 |
| Rated Voltage | 220V/230V |
| Breaking Capacity | 6 kA |
| Mounting Type | Rail Mounting |
| Protection | LSI |
| Place of Origin | Zhejiang, China |
| Brand Name | Westhomes |
The Westhomes WRO1-63 1P+N Residual Current Breaker with Overvoltage Protection is a multifunctional protection device that combines residual current protection, overvoltage protection, and circuit isolation functions. It is designed for single-phase electrical systems to improve safety and protect electrical equipment from leakage faults and abnormal voltage conditions.
The WRO1-63 provides residual current protection to reduce electric shock risks, overvoltage protection to prevent damage caused by excessive voltage, and circuit disconnection protection during abnormal electrical conditions. It offers a comprehensive protection solution for low-voltage distribution systems.
1P+N means the device contains one protected phase pole and one neutral pole. This configuration is designed for single-phase circuits, allowing simultaneous control and isolation of the phase and neutral conductors.
The WRO1-63 is widely used in residential buildings, commercial facilities, distribution boxes, lighting circuits, socket circuits, and other single-phase electrical applications where leakage and overvoltage protection are required.
A standard RCCB mainly provides residual current protection against earth leakage faults. The WRO1-63 integrates additional overvoltage protection, allowing it to protect electrical systems from both leakage currents and abnormal voltage increases.
The WRO1-63 series supports different rated current options, allowing users to select a suitable model according to the load requirements and electrical system design.
When the system voltage exceeds the preset safety limit, the WRO1-63 can quickly disconnect the circuit to help prevent damage to connected electrical equipment caused by abnormal overvoltage conditions.
Yes. The WRO1-63 is designed for DIN rail installation, making it suitable for distribution boxes, consumer units, and electrical control cabinets where space-saving and reliable protection are required.
When selecting the WRO1-63, consider the rated current, residual current sensitivity, operating voltage, electrical load type, and installation requirements. The selected model should match the protection needs of the specific application.
The Westhomes WRO1-63 combines residual current protection and overvoltage protection in a compact 1P+N design. It provides reliable protection for single-phase electrical systems and is suitable for residential, commercial, and low-voltage distribution applications requiring enhanced electrical safety.
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