China Professional RCBO Manufacturer, Supplier

As a leading electrical manufacturer, XENHO offers a comprehensive range of RCBOs, integrating short-circuit, overload, and earth leakage protection into single devices. Our robust production capabilities allow us to meet diverse international standards and complex application requirements. From standard to ultra-compact designs, and from standard AC faults to smooth DC leakage, XENHO provides reliable, tailored circuit protection solutions.

Explore Our RCBO Range by Categories:

1. By Residual Current Type (Sensitivity):

Type AC: Designed for standard alternating current (AC) leakage. Ideal for general applications like basic lighting and resistive heating circuits. Highly cost-effective.

Type A: Detects both AC and pulsating direct current (DC) leakage. Essential for circuits with modern electronic loads such as computers, washing machines, and appliances with rectifiers.

Type B: The ultimate level of protection. Detects AC, pulsating DC, and smooth DC residual currents. Crucial for EV charging stations, PV (solar) systems, and industrial inverters.

2. By Poles and Size:

Compact 1P+N (18mm / 1 Module): A flagship product at XENHO. It packs complete MCB+RCCB protection into a single 18mm module, saving 50% of DIN rail space in the consumer unit.

Standard 1P+N / 2P (36mm / 2 Modules): Provides stable and robust protection for standard single-phase circuits with high breaking capacities.

Multi-Pole 3P / 3P+N / 4P: Engineered for three-phase industrial and large commercial p ower distribution systems.

3. By Tripping Curve (Overcurrent Protection):

Curve B (3-5 In): Best for resistive loads with low surge currents, such as domestic lighting and long cable runs.

Curve C (5-10 In): The industry standard for general inductive loads, suitable for most residential and commercial appliances.

Curve D (10-20 In): Designed for heavy industrial applications with high inrush currents, such as large motors, transformers, and X-ray machines.

4. By Operating Mechanism:

Electronic RCBO (Voltage Dependent): Compact and economical. Relies on line voltage to power the tripping mechanism.

Electromechanical RCBO (Voltage Independent): Trips purely based on the fault current, regardless of line voltage drops or neutral loss. Offers the highest level of safety, highly preferred in European markets.

Key Technical Specifications:

Rated Current (In): 6A to 63A.

Rated Residual Operating Current (I△n): 10mA, 30mA (life protection), 100mA, 300mA (fire protection).

Short-Circuit Breaking Capacity (Icn): 4.5kA, 6kA, 10kA.

Standards: IEC/EN 61009-1.

Call to Action (CTA):

Whether you need bulk orders of standard RCBOs or specialized OEM/ODM manufacturing, XENHO is your trusted partner. [Browse our product series below] or [Contact our technical team for selection assistance].