Product Overview
This DELIXI CDB6LESi is a 3P 40A RCBO for 400V three-phase circuits, combining overcurrent and residual-current protection in one DIN-rail device.
The reference configuration uses a C tripping curve, 30mA Type AC residual-current protection and a rated breaking capacity of 6kA.
The complete reference configuration shown on this page is: CDB6LESi / 3P / C40 / 400V / 30mA / Type AC / 6kA
This is a three-pole configuration without a dedicated neutral pole. Buyers should confirm the required pole arrangement against the electrical design, panel schedule or existing breaker reference before ordering.
What Buyers Usually Need to Confirm
Before quotation or supplier matching, buyers normally need to confirm:
- DELIXI model or equivalent model requirement
- 3P, 3P+N or other required pole configuration
- rated current
- tripping curve
- rated voltage and frequency
- rated residual operating current (IΔn)
- residual-current type
- breaking capacity
- required certification or project documentation
- quantity and destination market
For panel or equipment projects, buyers may also provide a panel schedule, single-line diagram or electrical BOM for model matching.
Final breaker selection should follow the project electrical design and applicable local requirements.
See DELIXI Circuit Breakers in Hand
This short video shows several DELIXI circuit breaker sizes and configurations, helping buyers compare the actual product format, markings and physical differences before confirming the required model.
Typical Specifications
The specifications below are based on the photographed reference unit. Pole configuration, residual-current rating and other electrical parameters should be reconfirmed in the quotation and approved order specification before production or shipment.
| Brand | DELIXI ELECTRIC |
|---|---|
| Series | CDB6LESi |
| Product Type | RCBO |
| Pole Configuration | 3P |
| Neutral Pole | Not included |
| Rated Current | 40A |
| Tripping Curve | C curve |
| Instantaneous Trip Range | 5–10 × In |
| Rated Voltage | 400VAC |
| Rated Frequency | 50/60Hz |
| Rated Breaking Capacity | 6kA |
| Rated Residual Operating Current | 30mA |
| Residual-current Type | Type AC |
| Residual Operating Time | ≤0.1s |
| Rated Residual Making and Breaking Capacity | 630A |
| Protection Technology | Thermal-magnetic and residual-current protection |
| Protection Functions | Overload, short circuit and residual current |
| Isolation Function | Yes for the 3P configuration |
| Cable Entry | Top supply |
| Maximum Terminal Capacity | Up to 25mm² series reference |
| Reference Tightening Torque | 2.5N·m for 40–63A series |
| Mounting | 35mm DIN rail |
| Front Controls | Linked handle, test button and reset button |
| Status Indication | Contact and residual-trip indication |
Related DELIXI Circuit Protection Options
Depending on the circuit design, buyers may also compare these DELIXI protective-device configurations:
- For a standard single-phase 30mA residual-current configuration, see the DELIXI CDB6LESi 1P+N 40A 30mA RCBO.
- For lower-current single-phase circuits, see the DELIXI CDB6LESi 1P+N 16A 30mA RCBO.
- For 400V three-phase circuits, compare the DELIXI CDB6LESi 3P 40A 30mA RCBO.
- For low-current circuits requiring overload and short-circuit protection without residual-current protection, see the DELIXI CDB6i 1P 2A Miniature Circuit Breaker.
Send Us Your Requirements
Send us your required DELIXI model, pole configuration, rated current, residual-current rating, quantity or electrical BOM. We can check suitable product configurations and sourcing options based on your requirements.









