40A Protection in a 1P+N Format
The DELIXI CDB6LESi C40 combines circuit protection and residual-current protection in a single 1P+N unit.
Rated at 40A, this version sits above the smaller-current models commonly used for lighter final circuits. It is suited to single-phase distribution arrangements where the selected circuit design requires a higher current rating together with 30mA residual-current protection. The phase and neutral connections are clearly identified on the housing, while the modular format allows the device to be installed inside standard distribution boards and electrical enclosures.
More Than a Change in Current Rating
The C40 version should be treated as a separate protection specification rather than as an interchangeable alternative to the C16 model.
Its selection affects:
- Cable sizing
- Upstream and downstream protection coordination
- Connected load capacity
- Distribution-board allocation
- Terminal and wiring requirements
- Compliance with the electrical design of the destination market
For procurement purposes, the full model description should therefore include the series, pole configuration, tripping curve, rated current, residual-current sensitivity and breaking capacity.
The reference configuration shown here is: CDB6LESi / 1P+N / C40 / 30mA / 6kA / Type AC
Front Controls for Testing and Resetting
The front panel includes three separate operating elements.
- Main Operating Handle
The red handle is used to switch the circuit breaker between its ON and OFF positions.
- Test Button
The yellow test button is provided for periodic checking of the residual-current tripping function.
- Reset Button
The grey reset button is pressed before the breaker is reclosed following a residual-current trip. A front status window provides an additional visual indication of the contact position.
Suitable Product Positioning
This 40A version may be considered for:
- Higher-rated single-phase final circuits
- Fixed-equipment supply circuits
- Residential and commercial distribution boards
- Sub-distribution arrangements
- Electrical renovation projects
- Modular control and power-distribution enclosures
- Projects requiring several RCBO current ratings in one panel
Final circuit design, conductor size and protective-device coordination remain subject to the project engineer and applicable local electrical standards.
Reference Specification
| Brand | DELIXI ELECTRIC |
|---|---|
| Series | CDB6LESi |
| Product Type | RCBO |
| Pole Configuration | 1P+N |
| Rated Current | 40A |
| Tripping Curve | C curve |
| Rated Voltage | 230VAC |
| Rated Frequency | 50/60Hz |
| Rated Breaking Capacity | 6kA |
| Rated Residual Operating Current | 30mA |
| Residual-current Type | Type AC |
| Residual-current Operating Time | ≤0.1s |
| Rated Residual Making and Breaking Capacity | 630A |
| Overcurrent Protection | Thermal-magnetic |
| Protection Functions | Overload, short-circuit and residual-current protection |
| Front Controls | Operating handle, test button and reset button |
| Status Indication | Front contact-position window |
| Mounting | 35mm DIN rail |
| Supply Connection | Top or bottom connection available for the 1P+N series |
| Maximum Terminal Capacity | 25mm² series reference |
| Maximum Tightening Torque | 2.5N·m series reference |
| Mechanical Durability | 20,000 operations series reference |
| Electrical Durability | 10,000 operations series reference |
Product-specific electrical ratings are taken from the photographed reference unit. Installation and durability data are based on the CDB6LESi series documentation. The final ordering code, certification, packaging and production batch should be confirmed before purchase.
Mixed Ratings for One Distribution Project
Circuit-breaker orders are often supplied as a combination rather than as one repeated specification.
A single distribution project may require:
- 16A RCBOs for lower-current branches
- 40A RCBOs for higher-rated circuits
- 63A versions for other distribution positions
- Different pole configurations
- Standard MCBs together with RCBOs
- Matching enclosures, contactors or control components
JXNUO can work from the buyer’s complete electrical product list and separate each item by:
- Brand and series
- Pole configuration
- Rated current
- Tripping curve
- Residual-current sensitivity
- Breaking capacity
- Quantity
- Required documentation
This is more reliable than sourcing each current rating as an isolated order.
Batch and Model Verification
For DELIXI circuit-breaker orders, JXNUO can coordinate checks covering:
- Model and series markings
- C16, C40 and C63 rating separation
- 1P, 1P+N and 3P configuration
- 30mA residual-current marking
- 6kA or other specified breaking capacity
- Test and reset button condition
- Neutral-terminal identification
- Product and carton quantity
- Packaging and batch consistency
- Available certificates and technical documents
Different ratings can then be packed, labelled and consolidated according to the buyer’s product list.
Ordering Information
Please provide:
- Required DELIXI series
- Pole configuration
- Rated current
- Tripping curve
- Residual-current sensitivity
- Breaking capacity
- Quantity for each model
- Destination market
- Required certificates or documentation
JXNUO will check the requested configurations and coordinate sourcing, order follow-up, inspection and shipment from China.
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