Pronto Energy 
KNLN6-63 Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
The KNLN6-63 1P+N 10-63A RCBO combines earth-leakage and overcurrent protection in a single DIN-rail module. It trips within 0.1 seconds on leakage faults while providing overload and short-circuit protection, saving space in distribution boards.
Applications & circuit protection
The KNLN6-63 RCBO is ideal for circuits requiring both earth-leakage and overcurrent protection in a compact module, reducing panel space and wiring complexity.
- Combined leakage and overcurrent protection
- Compact distribution board design
- Residential and commercial final circuits
- Upgrade of RCCB + MCB combinations
Construction & operating reliability
The KNLN6-63 integrates a residual-current sensing unit and thermal-magnetic trip mechanism in one module, with reliable contacts and flame-retardant housing.
- Combined RCD and MCB in one module
- Fast leakage trip within 0.1s
- Thermal-magnetic overcurrent protection
- 35mm DIN rail mounting
Wiring Diagram
Technical Parameter
| Parameter | Value |
| Compliant with standards | IEC/EN 61009-1 |
| Application | Protection against residual current, overload and short circuit |
| Number of product poles | 1P+N |
| Rated working voltage | 240 V AC |
| Rated frequency | 50/60 Hz |
| Rated working current | 10–63 A |
| Residual-current type | Type A |
| Rated residual operating current | 10 / 30 / 100 / 300 mA |
| Release type | B, C, D |
| Making and breaking capacity | 10 kA |
| Mechanical life | 20,000 operations |
| Electrical life | 4,000 operations |
Standards & certifications
The KNLN6-63 is designed in accordance with IEC/EN 61009-1 and is available with CB, CE certifications. Certification documentation can be provided according to project and destination-market requirements.
- Standard: IEC/EN 61009-1.
- Certifications: CB, CE.
- Protection level: IP20 (where applicable).
OEM & B2B supply support
KORLEN supports distributors, OEM manufacturers, electrical contractors and project buyers with product selection, samples, technical documentation and commercial quotations.
If the KNLN6-63 configuration does not match your project, send us the required specifications, quantity and destination market. Our team can help identify a suitable configuration.
- Samples available for product evaluation.
- Flexible quantities for project and B2B purchasing.
- OEM and ODM support for suitable projects.
- Technical documentation and certification support available.
Frequently Asked Questions
The KNLN6-63 combines earth-leakage and overcurrent protection in one device, protecting final circuits against both fault types.
The KNLN6-63 covers 10-63A with a breaking capacity.
It is installed on 35mm DIN rail in distribution boards, replacing separate RCCB and MCB modules to save space.
The KNLN6-63 trips within 0.1 seconds on earth-leakage faults to reduce electric-shock risk.