Three-Phase WSB1LE-80 3P RCBO | No Neutral Required
Protect three-phase equipment with WSB1LE-80 3P RCBO. 10-63A, 6kA, 30mA AC type earth leakage protection. Ideal for motors & industrial machinery.
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Protect three-phase equipment with WSB1LE-80 3P RCBO. 10-63A, 6kA, 30mA AC type earth leakage protection. Ideal for motors & industrial machinery.
Protect three-phase equipment with WSB1LE-80 3P RCBO. 10-63A, 6kA, 30mA AC type earth leakage protection. Ideal for motors & industrial machinery.

The WSB1LE-80 3P RCBO is a high-performance residual current breaker designed for three-phase, three-wire systems (without neutral). It provides comprehensive protection for industrial machinery and commercial equipment by combining overload, short-circuit, and earth leakage detection in a single, compact unit.
Key Features:
Dedicated 3-Pole Design: Specifically designed for three-phase loads where a neutral conductor is not required, such as motors and pumps.
Triple Protection Function: Combines thermal (overload), magnetic (short-circuit), and residual current (earth leakage) protection in one device.
Wide Industrial Current Range: Available in 10A, 25A, 32A, 50A, and 63A ratings to accommodate various industrial equipment sizes.
30mA Leakage Sensitivity: Provides personnel protection in industrial environments where direct contact with live parts is possible.
Applications:
Industrial Motor Protection
HVAC Systems
Manufacturing Machinery
Agricultural Equipment
| 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 WSB1LE-80 3P+N RCBO is a residual current circuit breaker with overcurrent protection designed for three-phase electrical systems. It combines earth leakage protection, overload protection, and short-circuit protection in one compact device, providing comprehensive safety for commercial and industrial applications.
The WSB1LE-80 3P+N RCBO provides multiple protection functions, including residual current protection against electric shock, overload protection for excessive current, and short-circuit protection for electrical faults. It helps improve the safety and reliability of power distribution systems.
The WSB1LE-80 3P+N RCBO is suitable for commercial buildings, industrial facilities, distribution boards, workshops, offices, and other three-phase electrical systems where reliable circuit protection is required.
3P+N means the RCBO has three protected phase poles plus one neutral pole. This configuration is designed for three-phase four-wire systems, allowing simultaneous protection and isolation of both phase conductors and the neutral conductor.
The WSB1LE-80 3P+N RCBO is available in different rated current options, allowing users to select suitable protection according to their load requirements and electrical system design.
The WSB1LE-80 3P+N RCBO provides reliable short-circuit interruption capability, allowing it to safely disconnect fault currents and protect connected equipment from electrical damage.
An RCBO combines residual current protection and overcurrent protection in one device, while an RCCB only provides earth leakage protection and requires an additional MCB for overload and short-circuit protection. The RCBO offers a more compact and integrated protection solution.
Yes. The WSB1LE-80 3P+N RCBO is specifically designed for three-phase four-wire electrical systems and is suitable for applications requiring protection of three-phase loads with neutral connections.
The WSB1LE-80 3P+N RCBO is designed for DIN rail installation, making it easy to integrate into distribution boards and electrical control cabinets. Proper wiring should be completed according to the installation requirements and electrical standards.
The Westhomes WSB1LE-80 3P+N RCBO offers combined leakage, overload, and short-circuit protection in a compact design. With reliable performance, flexible installation, and suitability for commercial and industrial applications, it provides an efficient solution for modern electrical protection systems.
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