CHINT NXBLE-63YH-C20 RCOCB

CHINT NXBLE-63YH-C20 is a residual current operated circuit breaker (earth leakage circuit breaker), belonging to the NXBLE series. It is mainly designed for overload, short-circuit and earth leakage protection in low-voltage distribution lines, and suitable for various scenarios such as industrial and civil applications.

Model Parameter Interpretation

Core Technical Parameters (Default Standard Configuration, Subject to Nameplate for Specific Details)

1.  Rated Voltage: Single-phase 230V AC, three-phase 400V AC (commonly used in single-phase scenarios)
2.  Rated Frequency: 50Hz/60Hz
3.  Residual Current Operation Parameters:

Rated residual operating current (IΔn): commonly 30mA (standard safety value for household/industrial use, which can cut off the power supply quickly to prevent electric shock); 10mA/300mA is available for customization in some models

Operating time: ≤0.1s (instantaneous protection against short-circuit/earth leakage); the operating time of arc fault protection complies with national standard requirements

4.  Breaking Capacity: High breaking capacity (Class E), usually 6kA/10kA (may vary by batch, please check the nameplate), capable of withstanding high current impact during line short-circuit
5.  Tripping Type: C-type tripping, suitable for conventional loads to avoid non-fault tripping
6.  Mounting Method: DIN rail mounting (compliant with DIN rail standard, 35mm rail, facilitating batch installation in distribution cabinets)
7.  Pole Number: Commonly 1P+N, 2P (please check the specific model; C20 specification is mostly 1P+N/2P, suitable for single-phase 220V lines)

Application Scenarios

Lighting and socket circuits in civil buildings such as residences, office buildings and shopping malls, providing dual protection against electric shock and electrical fire (arc fault + earth leakage)

Small power equipment and control circuits in industrial plants, protecting equipment and the safety of operators

Places sensitive to arc faults (such as old lines and lines around flammable materials); the AFDD function can effectively reduce the risk of fire caused by arcs

Alternative Reference of Corresponding Schneider Model (Selection with the Same Function)

For brand replacement, you can refer to Schneider iDPNa Vigi+ AFDD series, such as iDPNa Vigi+ AFDD C20 30mA. The core parameters are matched: 20A rated current, C-type tripping, 30mA earth leakage protection, arc fault protection. The mounting method and breaking capacity are similar, allowing direct replacement (please check if the pole number, voltage and mounting dimensions are consistent).

Installation and Usage Precautions

1.  Before installation, confirm that the line voltage and current match the parameters of the circuit breaker to avoid faults caused by overload or undervoltage
2.  Wiring must be done according to the marks on the terminals (L for live wire, N for neutral wire, PE for protective earth wire); reverse connection is strictly prohibited for 1P+N models
3.  Regular Testing: Press the “TEST” button of the circuit breaker once a month to check whether the earth leakage/arc protection function is normal
4.  Avoid use in humid, dusty and corrosive environments, which may affect the service life and operation reliability of the circuit breaker
5.  Cut off the upper-level power supply before replacement; live operation is strictly prohibited

Common Fault Troubleshooting

Parameter Comparison Table Between CHINT NXBLE-63YH-C20 and Corresponding Schneider Model

To facilitate your direct procurement and replacement, the following is a complete parameter comparison between CHINT NXBLE-63YH-C20 (1P+N/2P) and Schneider iC65N Vigi+ C20 (1P+N model: A9D65140; 2P model: A9D65240), covering core technical indicators and application compatibility.

Key Precautions for Replacement

1.  Pole Number Matching: Confirm whether the original circuit is 1P+N or 2P, and select the corresponding Schneider model with the same pole number
2.  Leakage Type: Schneider adopts Type A earth leakage protection (compatible with Type AC), while CHINT uses Type AC. Type A has a wider application range, and replacement is risk-free
3.  Wiring Distinction: For 1P+N models, strictly distinguish between neutral wire (N) and live wire (L); reverse connection is prohibited
4.  Installation Space: The two models have the same width dimension and can directly replace the original installation position

Procurement Suggestions

For cost optimization: Choose CHINT NXBLE-63YH-C20 with higher cost performance

For brand consistency: Choose Schneider iC65N Vigi+ C20 with better compatibility with Schneider systems

For inventory replacement: The two models can be directly interchanged without modifying the circuit design or wiring method