LMNL RCBO | 2P 63A 30mA 230V Residual Current Circuit Breaker
LMNL RCBO | 2P 63A 30mA 230V Residual Current Circuit Breaker
The LMNL Series 2P RCBO is a compact 2-pole residual current circuit breaker with integrated overcurrent protection, designed for 230V AC single-phase systems. Rated at 63A (C63 curve) with 30mA residual current sensitivity and 6000A breaking capacity, it safeguards against electric shock, overloads, and short circuits. Certified to IEC61009-1 and GB/T16917.1 standards, this DIN rail-mounted device is ideal for residential and commercial applications requiring reliable safety and circuit protection.
The LMNL Series 2P RCBO is a compact 2-pole residual current circuit breaker with integrated overcurrent protection, designed for 230V AC single-phase systems. Rated at 63A (C63 curve) with 30mA residual current sensitivity and 6000A breaking capacity, it safeguards against electric shock, overloads, and short circuits. Certified to IEC61009-1 and GB/T16917.1 standards, this DIN rail-mounted device is ideal for residential and commercial applications requiring reliable safety and circuit protection.
1. Product Overview
The LVMA LMNL Series 2P RCBO is a high-performance residual current circuit breaker with overcurrent protection, engineered for single-phase 230V AC systems. Combining 30mA residual current protection with 63A C63 curve overcurrent protection and 6000A short-circuit breaking capacity, it delivers comprehensive safety against electric shock, overloads, and short circuits. Certified to IEC61009-1 and GB/T16917.1 standards, this DIN rail-mounted device is the ideal solution for residential, commercial, and light industrial applications.
2. Core Product Features
1. Dual Protection: Residual Current + Overcurrent
- Residual Current Protection: 30mA rated residual operating current with ≤0.1s tripping time, preventing electric shock hazards from earth leakage
- Overcurrent/Short-Circuit Protection: 63A C63 curve protection with 6000A breaking capacity, instantly isolating overloads and short circuits
- All-in-One Design: Eliminates the need for separate MCB and RCCB, saving panel space and simplifying installation
2. Robust Electrical Performance
- 2-Pole Configuration: Full protection for single-phase systems, monitoring both live and neutral lines
- Rated Parameters: 63A rated current, 230V AC 50Hz, 30mA residual current, 6000A breaking capacity
- Fast Response: ≤0.1s tripping time ensures quick disconnection in fault conditions, minimizing safety risks
- C63 Trip Curve: Optimized for household and commercial loads, avoiding nuisance tripping while ensuring reliable protection
3. Safety & Compliance
- Certified to International Standards: Compliant with IEC61009-1 and GB/T16917.1 standards, with 3C certification
- Test Button Function: Monthly test button to verify residual current protection functionality, ensuring ongoing safety
- Arc Extinguishing System: High-efficiency arc-quenching mechanism safely contains arcs during faults, preventing electrical fires
- Clear Status Indication: Visible ON/OFF markings for quick circuit status identification
4. Durable Construction & Installation
- DIN Rail Mount: Standard 35mm DIN rail mounting for quick, tool-less installation in distribution panels
- Flame-Retardant Housing: High-grade thermoplastic housing with excellent heat and impact resistance
- Compact Modular Design: Space-saving form factor optimizes panel layout for multi-device setups
- Long Service Life: ≥10,000 mechanical operations and ≥4,000 electrical operations for reliable long-term use
3. Key Advantages Over Competitors
| Feature | LMNL RCBO | Generic Budget RCBOs | Mid-Range Competitor RCBOs |
|---|---|---|---|
| Breaking Capacity | 6000A (IEC certified) | <4000A, often uncertified | 6000A (some non-certified) |
| Residual Current Accuracy | Stable 30mA trip, ≤0.1s response | Inconsistent trip, slow response | Moderate accuracy, occasional false trips |
| Dual Protection | Integrated residual + overcurrent | Separate MCB/RCCB required | Combined protection with limited certification |
| Certification | IEC61009-1, GB/T16917.1, 3C | No third-party certification | Partial certification (IEC only) |
| Test Function | Built-in monthly test button | No test button (no functional verification) | Basic test button with no calibration |
| Housing Durability | Flame-retardant, impact-resistant plastic | Low-grade plastic prone to melting | Standard flame-retardant plastic |
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMNL Series |
| Rated Current | 63A (C63 curve) |
| Poles | 2P (Single-phase + Neutral) |
| Rated Voltage | 230V AC |
| Frequency | 50Hz |
| Residual Operating Current (IΔn) | 30mA, 100mA, 300mA |
| Breaking Capacity | 6000A |
| Trip Time | ≤0.1s |
| Trip Curve | B/C/D -Curve |
| Compliance Standards | IEC61009-1, GB/T16917.1, 3C Certified |
| Mounting Type | 35mm DIN Rail |
| Operating Temperature | -25°C to +40°C |
| Mechanical Endurance | ≥10,000 operations |
| Electrical Endurance | ≥4,000 operations |
| Housing Material | Flame-retardant thermoplastic |
| Terminal Type | Screw-type, copper conductor compatible |
5. Typical Applications
- Residential distribution boards (whole-house protection)
- Commercial building power panels
- Small office and retail electrical systems
- Light industrial equipment control circuits
- HVAC and household appliance power circuits
- Renewable energy low-voltage distribution systems
6. Frequently Asked Questions (FAQ)
1. What is the difference between RCBO and separate MCB + RCCB?
An RCBO combines both overcurrent (MCB) and residual current (RCCB) protection in a single device. This eliminates the need for two separate components, saving panel space, simplifying installation, and reducing potential wiring errors.
2. Why is 30mA residual current important for residential safety?
30mA is the standard threshold for preventing severe electric shock in humans. The LMNL RCBO trips at 30mA with ≤0.1s response time, quickly isolating the circuit to reduce injury risk in the event of earth leakage.
3. What does the “test button” do, and how often should I use it?
The test button verifies that the residual current protection function is working correctly. We recommend pressing it once a month (as indicated on the device) to ensure ongoing safety and functionality.
4. Can this RCBO be used in three-phase systems?
The LMNL series is a 2-pole device designed for single-phase systems. For three-phase applications, we recommend selecting 3P or 4P RCBO models from the same series for optimal performance.
5. What is the breaking capacity of this RCBO, and what does it mean?
This RCBO has a 6000A breaking capacity, meaning it can safely interrupt short-circuit currents up to 6000A without damage to the device or the panel. This is critical for preventing equipment damage and fire hazards during severe faults.
6. Is this RCBO certified for use in residential environments?
Yes. The LMNL series is certified to IEC61009-1 and GB/T16917.1 standards, with 3C certification. It meets the requirements for most residential and commercial electrical installations.
7. How do I install the LMNL RCBO?
Installation steps:
- Ensure the power supply is disconnected before installation.
- Mount the RCBO on a standard 35mm DIN rail.
- Connect the live line (L) and neutral line (N) to the corresponding terminals (marked L/N for line side and load side).
- Secure the wiring with the screw terminals and verify the connections.
- After installation, press the test button to confirm residual current protection functionality.
7. Technical documentation and support
Download the full datasheet for detailed specifications, wiring diagrams and trip coordination guides.
Please contact our technical team for custom configuration or OEM/ODM solutions for your project.
Request a quote with details about your project for volume pricing, lead times, and compliance certifications.
1. Product Overview
The LVMA LMNL Series 2P RCBO is a high-performance residual current circuit breaker with overcurrent protection, engineered for single-phase 230V AC systems. Combining 30mA residual current protection with 63A C63 curve overcurrent protection and 6000A short-circuit breaking capacity, it delivers comprehensive safety against electric shock, overloads, and short circuits. Certified to IEC61009-1 and GB/T16917.1 standards, this DIN rail-mounted device is the ideal solution for residential, commercial, and light industrial applications.
2. Core Product Features
1. Dual Protection: Residual Current + Overcurrent
- Residual Current Protection: 30mA rated residual operating current with ≤0.1s tripping time, preventing electric shock hazards from earth leakage
- Overcurrent/Short-Circuit Protection: 63A C63 curve protection with 6000A breaking capacity, instantly isolating overloads and short circuits
- All-in-One Design: Eliminates the need for separate MCB and RCCB, saving panel space and simplifying installation
2. Robust Electrical Performance
- 2-Pole Configuration: Full protection for single-phase systems, monitoring both live and neutral lines
- Rated Parameters: 63A rated current, 230V AC 50Hz, 30mA residual current, 6000A breaking capacity
- Fast Response: ≤0.1s tripping time ensures quick disconnection in fault conditions, minimizing safety risks
- C63 Trip Curve: Optimized for household and commercial loads, avoiding nuisance tripping while ensuring reliable protection
3. Safety & Compliance
- Certified to International Standards: Compliant with IEC61009-1 and GB/T16917.1 standards, with 3C certification
- Test Button Function: Monthly test button to verify residual current protection functionality, ensuring ongoing safety
- Arc Extinguishing System: High-efficiency arc-quenching mechanism safely contains arcs during faults, preventing electrical fires
- Clear Status Indication: Visible ON/OFF markings for quick circuit status identification
4. Durable Construction & Installation
- DIN Rail Mount: Standard 35mm DIN rail mounting for quick, tool-less installation in distribution panels
- Flame-Retardant Housing: High-grade thermoplastic housing with excellent heat and impact resistance
- Compact Modular Design: Space-saving form factor optimizes panel layout for multi-device setups
- Long Service Life: ≥10,000 mechanical operations and ≥4,000 electrical operations for reliable long-term use
3. Key Advantages Over Competitors
| Feature | LMNL RCBO | Generic Budget RCBOs | Mid-Range Competitor RCBOs |
|---|---|---|---|
| Breaking Capacity | 6000A (IEC certified) | <4000A, often uncertified | 6000A (some non-certified) |
| Residual Current Accuracy | Stable 30mA trip, ≤0.1s response | Inconsistent trip, slow response | Moderate accuracy, occasional false trips |
| Dual Protection | Integrated residual + overcurrent | Separate MCB/RCCB required | Combined protection with limited certification |
| Certification | IEC61009-1, GB/T16917.1, 3C | No third-party certification | Partial certification (IEC only) |
| Test Function | Built-in monthly test button | No test button (no functional verification) | Basic test button with no calibration |
| Housing Durability | Flame-retardant, impact-resistant plastic | Low-grade plastic prone to melting | Standard flame-retardant plastic |
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMNL Series |
| Rated Current | 63A (C63 curve) |
| Poles | 2P (Single-phase + Neutral) |
| Rated Voltage | 230V AC |
| Frequency | 50Hz |
| Residual Operating Current (IΔn) | 30mA, 100mA, 300mA |
| Breaking Capacity | 6000A |
| Trip Time | ≤0.1s |
| Trip Curve | B/C/D -Curve |
| Compliance Standards | IEC61009-1, GB/T16917.1, 3C Certified |
| Mounting Type | 35mm DIN Rail |
| Operating Temperature | -25°C to +40°C |
| Mechanical Endurance | ≥10,000 operations |
| Electrical Endurance | ≥4,000 operations |
| Housing Material | Flame-retardant thermoplastic |
| Terminal Type | Screw-type, copper conductor compatible |
5. Typical Applications
- Residential distribution boards (whole-house protection)
- Commercial building power panels
- Small office and retail electrical systems
- Light industrial equipment control circuits
- HVAC and household appliance power circuits
- Renewable energy low-voltage distribution systems
6. Frequently Asked Questions (FAQ)
1. What is the difference between RCBO and separate MCB + RCCB?
An RCBO combines both overcurrent (MCB) and residual current (RCCB) protection in a single device. This eliminates the need for two separate components, saving panel space, simplifying installation, and reducing potential wiring errors.
2. Why is 30mA residual current important for residential safety?
30mA is the standard threshold for preventing severe electric shock in humans. The LMNL RCBO trips at 30mA with ≤0.1s response time, quickly isolating the circuit to reduce injury risk in the event of earth leakage.
3. What does the “test button” do, and how often should I use it?
The test button verifies that the residual current protection function is working correctly. We recommend pressing it once a month (as indicated on the device) to ensure ongoing safety and functionality.
4. Can this RCBO be used in three-phase systems?
The LMNL series is a 2-pole device designed for single-phase systems. For three-phase applications, we recommend selecting 3P or 4P RCBO models from the same series for optimal performance.
5. What is the breaking capacity of this RCBO, and what does it mean?
This RCBO has a 6000A breaking capacity, meaning it can safely interrupt short-circuit currents up to 6000A without damage to the device or the panel. This is critical for preventing equipment damage and fire hazards during severe faults.
6. Is this RCBO certified for use in residential environments?
Yes. The LMNL series is certified to IEC61009-1 and GB/T16917.1 standards, with 3C certification. It meets the requirements for most residential and commercial electrical installations.
7. How do I install the LMNL RCBO?
Installation steps:
- Ensure the power supply is disconnected before installation.
- Mount the RCBO on a standard 35mm DIN rail.
- Connect the live line (L) and neutral line (N) to the corresponding terminals (marked L/N for line side and load side).
- Secure the wiring with the screw terminals and verify the connections.
- After installation, press the test button to confirm residual current protection functionality.
7. Technical documentation and support
Download the full datasheet for detailed specifications, wiring diagrams and trip coordination guides.
Please contact our technical team for custom configuration or OEM/ODM solutions for your project.
Request a quote with details about your project for volume pricing, lead times, and compliance certifications.
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