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Schneider A9DA2616 (Acti9 iDD40T 1P+N C16 30mA AC) Residual Current Operated Circuit Breaker with Overcurrent Protection (RCBO)
- Model Interpretation
A9DA2616 = Acti9 Series iDD40T Product Type 1P+N Pole Configuration C-type Tripping Curve 16A Rated Current 30mA Residual Current AC-type Residual Current Detection
- Core Technical Parameters (Compliant with IEC 61009-1/GB 16917.1)
| Parameter | Specification |
| Product Type | Residual Current Operated Circuit Breaker with Overcurrent Protection (RCBO, integrating three protections: overload, short-circuit, and residual current) |
| Pole Configuration | 1P+N (1 Pole + Neutral, phase line breaks, neutral line remains conducting permanently) |
| Rated Current (In) | 16A |
| Tripping Curve | C-type (instantaneous tripping at 5~10 In), suitable for lighting, socket, and general motor loads |
| Rated Residual Operating Current (IΔn) | 30mA (personal safety protection level) |
| Residual Current Type | AC-type (detects sinusoidal AC leakage current, suitable for conventional environments) |
| Rated Voltage (Ue) | 230V AC (1P+N), 50/60Hz |
| Short-circuit Breaking Capacity (Icn) | 6kA (400V) / 4500A (230V) |
| Rated Residual Operating Time (at IΔn) | ≤0.3s |
| Mechanical Service Life | 10,000 operations |
| Electrical Service Life | 5,000 operations |
| Mounting Method | 35mm DIN rail (18mm width) |
| Wiring Specification | Solid wire: 1~25 mm²; Flexible wire: 1~16 mm² (with cable lugs) |
| Terminal Torque | 2.0 N·m |
| Operating Temperature | -25℃ ~ +70℃ |
| Protection Class | IP20 (for use inside distribution boxes) |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
- Functions & Applications
Core Functions
Overload Protection: Realizes inverse-time protection via the thermal bending of bimetallic strips.
Short-circuit Protection: Achieves instantaneous protection through electromagnetic release.
Residual Current Protection: Rapidly trips within ≤0.3s when detected residual current exceeds 30mA, preventing electric shock accidents.
Typical Application Scenarios
- Branch circuit protection for residential/commercial buildings (e.g., lighting and socket circuits)
- Electrical safety protection for crowded places such as offices and shops
- Power supply protection for small household appliances and office equipment
- Replacement for traditional MCB + RCCB combinations, saving distribution box space
Selection Tips
AC-type is suitable for pure AC load environments, such as traditional lighting and resistive loads.
For loads containing DC components (e.g., switching power supplies, LED lighting), A-type or B-type residual current circuit breakers are recommended.
30mA is the standard value for personal safety protection and shall not be used for equipment protection (300mA is usually selected for equipment protection).
- Installation & Maintenance Key Points
- Wiring Specifications: Top-in bottom-out (bidirectional wiring with bottom-in top-out supported). Connect phase line to L pole and neutral line to N pole; reverse connection is strictly prohibited.
- Residual Current Test: After installation, press the test button (T button) to confirm the normal operation of the residual current protection function.
- Regular Inspection: Press the test button once a quarter to verify the effectiveness of the residual current protection function.
- Fault Handling:
Overload/Short-circuit Tripping: Troubleshoot load or line faults before closing the breaker directly.
Residual Current Tripping: First disconnect all loads, check for leakage points one by one, and close the breaker only after repairs; forced closing with faults is strictly prohibited.
- Spacing Requirement: Maintain a gap of ≥3mm from adjacent components to ensure heat dissipation and wiring space.
- Corresponding Chint Product & Replacement Comparison
Chint Equivalent Model: NXBLE-63 1P+N C16 30mA AC
| Parameter Category | Schneider A9DA2616 | Chint NXBLE-63 1P+N C16 30mA | Replacement Compatibility |
| Core Protection | Overload + Short-circuit + Residual Current (RCBO) | Overload + Short-circuit + Residual Current (RCBO) | ✅ Fully Matched |
| Pole Configuration/Tripping Curve/In | 1P+N/C-type/16A | 1P+N/C-type/16A | ✅ Fully Matched |
| IΔn/IΔ Type | 30mA/AC | 30mA/AC | ✅ Fully Matched |
| Breaking Capacity | 6kA | 6kA | ✅ Fully Matched |
| Installation Dimensions | 18mm (width) × 91mm (height) × 65mm (depth) | 18mm (width) × 91mm (height) × 65mm (depth) | ✅ Identical Dimensions |
| Wiring Specification | Solid wire: 1~25 mm² | Solid wire: 10~16 mm² | ⚠️ Schneider Terminals Have Larger Capacity |
| Operating Temperature | -25℃ ~ +70℃ | -30℃ ~ +70℃ | ✅ Chint Has Better Low-temperature Adaptability |
| Additional Functions | VisiTrip Fault Indication | Red-Green Window Indication (Red for Closed, Green for Open) | ⚠️ Different Indication Methods |
| Warranty Period | 24 Months | 18 Months | ⚠️ Warranty Difference |
Key Replacement Precautions
- ✅ Installation Compatibility: Both are mounted on 35mm DIN rails with 18mm width, enabling direct interchange.
- ✅ Protection Characteristics: C-type curve, 16A rated current, and 30mA residual current protection are fully consistent; no load adjustment is required.
- ⚠️ Wiring Adaptation: Schneider terminals support larger wire diameters; keep the original wire diameter during replacement to avoid loose connections.
- ⚠️ Function Identification: The VisiTrip indication window of Schneider shows red after tripping; it is necessary to train operators to recognize the new marks.
- Summary & Selection Recommendations
Schneider A9DA2616 is a 1P+N 16A RCBO in the Acti9 series iDD40T product line. It integrates triple protection functions and is suitable for personal safety protection in conventional environments.
Selection Recommendations:
For international brand reputation and reliable performance: Choose Schneider A9DA2616, which provides more comprehensive fault indication and bidirectional wiring functions.
For cost-effectiveness: Choose Chint NXBLE-63 1P+N C16 30mA, which features more favorable pricing and performance meeting national standards.
For special environments (e.g., low temperature < -25℃): Prioritize Chint products for their better low-temperature adaptability.
