What does an ABB RCCB do?
An ABB RCCB detects residual current and disconnects the circuit during leakage faults, but it does not replace an MCB in every system.
ABB RCCB / RCBO
ABB RCCB and RCBO leakage breakers with Type A Type B options
Select ABB residual-current protection to match your design. RCCBs and RCBOs have different functions; provide the model, poles, current, residual-current sensitivity such as 30mA, and Type AC, Type A or Type B before ordering.
Product selection guide
Selection guide: ABB RCCB / RCBO
A concise explanation of ABB residual-current protection to reduce wrong item selection.
What is the difference between RCCB and RCBO?
An RCCB detects residual current, while an RCBO combines overcurrent and residual-current protection in one device.
Should Type AC, Type A or Type B be specified?
Yes. Send type, residual-current sensitivity, poles, amp rating and model code because type selection directly affects the product and price.
Details to prepare
- Confirm whether the requirement is RCCB or RCBO.
- Specify residual-current rating such as 30mA or as shown in the drawing.
- Specify Type AC, Type A or Type B with poles, amp rating and model code if available.
Before you order
What is the difference between RCCB and RCBO?
RCCBs detect residual current, while RCBOs combine overcurrent and residual-current protection in one device. Check product documents and system design before selecting.
Can I use a generic leakage breaker term?
Generic terms can refer to different devices. Use RCCB or RCBO with the required specification when requesting pricing.
What should be checked for ABB Type B RCCB pricing?
Confirm that the system requires Type B, then send pole count, amp rating and residual-current sensitivity because type selection affects the model and price.