1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Schneider Electric Acti9 iDD40T Residual Current Circuit Breaker (RCBO). The Acti9 iDD40T is designed to protect against electrical shock by detecting earth leakage currents and disconnecting the circuit. Please read this manual thoroughly before installation and use.
2. Safety Information
WARNING: Electrical installation and maintenance should only be performed by qualified and authorized personnel. Failure to follow these instructions can result in serious injury or death.
- Always disconnect power at the main supply before working on electrical circuits.
- Ensure all local and national electrical codes and regulations are followed.
- Do not use the device if it appears damaged.
- The test button is for functional verification only and does not replace regular electrical safety checks.
3. Setup and Installation
The Acti9 iDD40T RCBO is designed for DIN rail mounting. Ensure adequate space for ventilation and wiring.
3.1. Mounting
- Ensure the DIN rail is securely installed within the electrical enclosure.
- Hook the top clip of the RCBO onto the DIN rail.
- Press down firmly on the bottom of the RCBO until it clicks into place on the rail.
3.2. Wiring Connections
Refer to the diagram below for correct wiring. Ensure all connections are tight to prevent overheating and arcing.
Figure 1: Schneider Electric Acti9 iDD40T RCBO. This image shows the front view of the circuit breaker, highlighting the input and output terminals, the operating handle, and the 'Regular test' button. The 'N' terminal for neutral connection is visible at both the top and bottom.
- Connect the incoming phase (live) conductor to the top left terminal (marked 'L' or similar, typically not explicitly marked on this model but implied by standard wiring).
- Connect the incoming neutral conductor to the top right terminal (marked 'N').
- Connect the outgoing phase (live) conductor to the bottom left terminal.
- Connect the outgoing neutral conductor to the bottom right terminal (marked 'N').
- Ensure wire stripping length is appropriate for the terminals (e.g., 14mm as indicated on the device).
- Tighten terminal screws to the recommended torque (typically 2Nm, refer to device markings or manufacturer specifications).
4. Operating Instructions
4.1. Turning On/Off
- To Turn On: Push the operating handle upwards to the 'ON' position.
- To Turn Off: Push the operating handle downwards to the 'OFF' position.
- Tripped State: If the RCBO trips due to an overload, short circuit, or earth leakage, the handle will move to an intermediate position. To reset, first push the handle fully down to 'OFF', then push it up to 'ON'.
4.2. Test Button Function
The 'Regular test' button (marked 'T' or with a test symbol) is used to verify the proper functioning of the earth leakage detection mechanism.
- Ensure the RCBO is in the 'ON' position and the circuit is live.
- Press and hold the 'Regular test' button. The RCBO should immediately trip to the 'OFF' position.
- Release the button.
- Reset the RCBO by pushing the handle fully down to 'OFF', then up to 'ON'.
- If the RCBO does not trip when the test button is pressed, it may be faulty and should be replaced immediately.
5. Maintenance
The Acti9 iDD40T RCBO requires minimal maintenance. Regular testing is the primary maintenance activity.
- Regular Testing: It is recommended to press the 'Regular test' button at least once every month to ensure the earth leakage protection function is operational.
- Cleaning: If necessary, gently wipe the exterior of the device with a dry, soft cloth. Do not use abrasive cleaners or solvents. Ensure power is disconnected before cleaning.
- Inspection: Periodically inspect the device for any signs of physical damage, discoloration, or loose connections. Address any issues promptly.
6. Troubleshooting
If you encounter issues with your Acti9 iDD40T RCBO, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| RCBO trips immediately after being reset. | Persistent earth leakage fault, short circuit, or overload in the protected circuit. | Disconnect all loads from the circuit. Reset the RCBO. If it holds, reconnect loads one by one to identify the faulty appliance or wiring. If it still trips with no loads, consult a qualified electrician. |
| RCBO does not trip when the 'Regular test' button is pressed. | Faulty RCBO internal mechanism. | The device is faulty and must be replaced by a qualified electrician. Do not attempt to repair. |
| RCBO trips intermittently. | Intermittent earth leakage, transient overloads, or sensitive equipment causing nuisance tripping. | Check for loose connections. Monitor appliances for intermittent faults. Consider if the circuit is overloaded. Consult a qualified electrician for further diagnosis. |
7. Specifications
Technical specifications for the Schneider Electric Acti9 iDD40T RCBO (Model A9DA2616):
| Feature | Detail |
|---|---|
| Model Number | A9DA2616 |
| Type | Residual Current Circuit Breaker with Overcurrent Protection (RCBO) |
| Poles | 1P+N (1 Pole + Neutral) |
| Rated Current (In) | 16 A |
| Tripping Curve | C |
| Rated Residual Operating Current (IΔn) | 30 mA |
| Residual Current Type | AC type |
| Rated Short-Circuit Breaking Capacity (Icn) | 4500A/6kA (according to IEC 601009-2-1 and IEC 60947-2) |
| Rated Voltage (Ue) | 230-240 V AC, 50 Hz |
| Mounting Type | DIN Rail |
| Width | 8 steps of 9mm (72mm total width) |
| Dimensions (L x W x H) | 7.3 x 3.6 x 8.5 cm |
| Weight | 210 grams |
| Standards | IEC 601009-2-1, IEC 60947-2 |
8. Warranty and Support
For warranty information and technical support, please refer to the official Schneider Electric website or contact your local Schneider Electric representative. Keep your purchase receipt as proof of purchase.
Online Resources: www.se.com
