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Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
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NLRO-40L 1P Single Pigtail
CHNAILE
Product Overview
Safeguard your electrical installations and human life with the CHNAILE NLRO-40L 1-Pole Plug-in RCBO. This high-precision safety device goes beyond standard miniature circuit breakers by integrating overload, short-circuit, and ground fault (earth leakage) protection into one compact module. Featuring a highly sensitive 30mA leakage detection threshold, it immediately cuts off power the moment a dangerous fault is detected. The intelligent "Single Pigtail" neutral wire design allows for a direct and clean connection to the distribution board's neutral bus, making installation exceptionally fast and straightforward for electrical contractors.
Core Technical Specifications
| Brand: | CHNAILE |
| Model: | NLRO-40L |
| Device Category: | RCBO (Residual Current Circuit Breaker with Overcurrent Protection / GFCI) |
| Number of Poles: | 1P (Single Pole) |
| Rated Operating Voltage (Ue): | AC 110/240V |
| Rated Frequency: | 60Hz |
| Rated Current (In): | 20A (Curve C) |
| Residual Operating Current (I∆n): | 30mA (Life-saving grade) |
| Rated Breaking Capacity (Icu): | 6000A (6kA) |
| Compliance Standard: | IEC 61009 |
| Wiring Configuration: | Plug-in mounting with a Single Coiled Neutral Pigtail |

Premium Features & Wiring Advantages
Streamlined Single Pigtail Design: Equipped with a single coiled neutral wire that powers the internal leakage detection PCBA. This configuration reduces wiring clutter inside the panel compared to dual-wire models, while maintaining 100% operational safety.
3-in-1 Total Protection: Delivers robust defense against equipment-damaging overcurrents and short circuits, alongside life-saving protection from earth leakage shocks.
High-Speed Fault Interruption: Boasts a 6kA breaking capacity, ensuring that even severe electrical spikes and short circuits are safely extinguished without damaging the panel.
Built-in Safety Test Button: Features an easily accessible white 'Test' button to allow users to routinely verify the integrity of the ground-fault protection circuit.
Typical Applications
This 60Hz, single-pigtail RCBO is engineered for regions and load centers demanding rapid ground-fault protection, including:
Residential wet areas (Kitchens, Bathrooms, Basements)
Outdoor electrical receptacles and landscaping power
Commercial sub-panels requiring individual circuit leakage protection
Renovation projects where simplified panel wiring is preferred
