Residual Current Breakers with Overcurrent Protection (RCBO)
Compare VIOX RCBO series by rated current, pole configuration, breaking capacity and rated residual operating current for combined circuit protection.
Combined protectionLeakage and overcurrent
Pole optionsConfirm by series
Breaking capacityMatch the fault level
SensitivityConfirm IΔn by model
What is an RCBO?
An RCBO combines residual-current detection with overload and short-circuit protection in one device. It can disconnect the circuit when earth leakage or an overcurrent fault exceeds the device operating characteristics.
Selection must consider both protection functions. Rated current, breaking capacity, pole arrangement, trip curve, rated residual operating current and residual-current type must match the circuit and connected load.
RCBO Series Overview
Compare published VIOX models using facts already available in product data.
VIOX V50L-32G
Residual current breaker with overcurrent protectionReview model data
VIOX VL16-40
Residual current breaker with overcurrent protection- Poles
- 1P+N
VIOX VRO1-40
Residual current breaker with overcurrent protectionReview model data
VIOX VRO10-63
Residual current breaker with overcurrent protection- Poles
- 2P
- Rated current
- 63A
- Breaking capacity
- 10KA
VIOX VRO3-40
Residual current breaker with overcurrent protection- Poles
- 1P+N
VIOX VRO5-80
Residual current breaker with overcurrent protectionReview model data
VIOX VRO6-63
Residual current breaker with overcurrent protection- Poles
- 4P
- Rated current
- 6-63A
VIOX VRO7-63
Residual current breaker with overcurrent protection- Poles
- 1P+N
How to choose an RCBO
Check the overcurrent and residual-current characteristics together, then verify the exact product datasheet.
Rated current and trip curve
Match the circuit load, conductor capacity and expected inrush behaviour.
Breaking capacity
Choose a rating suitable for the available prospective fault current.
Residual-current sensitivity
Match IΔn and residual-current type to the protection objective and connected equipment.
Pole configuration
Confirm the protected poles, neutral arrangement and circuit voltage.
Combined protection functions
Exact functions and ratings vary by series. Confirm all protection characteristics on the product page or datasheet.
Compare published RCBO series
Blank cells mean the value is not available in the current product summary. Open the model page or request its datasheet before specification.
| Series | Poles | Rated current | Breaking capacity | Sensitivity |
|---|---|---|---|---|
| VIOX V50L-32G | — | — | — | — |
| VIOX VL16-40 | 1P+N | — | — | — |
| VIOX VRO1-40 | — | — | — | — |
| VIOX VRO10-63 | 2P | 63A | 10KA | — |
| VIOX VRO3-40 | 1P+N | — | — | — |
| VIOX VRO5-80 | — | — | — | — |
| VIOX VRO6-63 | 4P | 6-63A | — | — |
| VIOX VRO7-63 | 1P+N | — | — | — |
RCBO Applications
Typical environments where the exact product characteristics must be verified.
Residential Buildings
Combined leakage and overcurrent protection for final circuits and distribution boards.
Industrial Automation
Compact combined protection for selected machine and auxiliary circuits.
Solar & Energy Storage
AC or DC RCBO selection coordinated with voltage, polarity and power-conversion equipment.
RCBO Knowledge & Selection Guides
All articles
Selection & SizingHow to Select the Right RCBO
RCBO Selection Questions
Quick answers for preliminary product-family comparison before detailed circuit verification.
What protection does an RCBO provide?
An RCBO combines residual-current protection with overload and short-circuit protection. The exact ratings and residual-current characteristics vary by model.
How is an RCBO different from an RCCB?
An RCCB is selected for residual-current protection and normally requires separate overcurrent protection. An RCBO combines residual-current and overcurrent protection in one device.
Which RCBO ratings should be checked?
Confirm rated current, poles, circuit voltage, breaking capacity, trip curve, rated residual operating current and residual-current type.
Can every RCBO be used on a DC circuit?
No. Use only a model whose voltage, polarity, poles and AC or DC ratings are explicitly suitable for the circuit.
Does RCBO type matter with electronic loads?
Yes. Connected electronic equipment can affect the residual-current waveform, so the correct device type must be selected from the product documentation and applicable installation rules.
Need the Right RCBO?
Let’s Confirm It Together.
Send the circuit voltage, rated current, poles, breaking capacity, sensitivity, connected loads, quantity and target market. VIOX will help identify the relevant published series.
Request RCBO Support