RCBO
Residual-current breaker with overcurrent protection
An RCBO combines residual-current operation with overcurrent protection in one device.
SLD / Schematic
IEEE / ANSI · RCBO
ANSI/IEEE Residual-current breaker with overcurrent protection form
IEEE-library form of residual-current breaker with overcurrent protection: an RCBO combines residual-current operation with overcurrent protection in one device.
In plain English
What does ANSI/IEEE Residual-current breaker with overcurrent protection form mean?
This reference locates residual-current breaker with overcurrent protection in Autodesk's IEEE-oriented 1 pole circuit breakers family. An RCBO combines residual-current operation with overcurrent protection in one device. It is often shown as a combined protective function rather than as two unrelated devices. The public library uses HCB11Q13 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits.
What the drawings help you do
Identify which neutral connection is switched, sensed or permanently connected for the selected model. An RCBO differs from an RCCB by its integral overcurrent protective function. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
This particular reference
IEEE-library form of residual-current breaker with overcurrent protection: an RCBO combines residual-current operation with overcurrent protection in one device. An RCBO differs from an RCCB by its integral overcurrent protective function.
- Terminal
- An identified point where a conductor connects.
- Rating
- A value stating the conditions for which equipment is specified.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: Autodesk IEEE Symbol Preview — 1 Pole Circuit Breakers · Fundamental characteristics of a circuit-breaker
IEEE / ANSI · Magneto/Thermal with Differential
Autodesk IEEE Symbol Preview: 1 Pole Circuit Breakers, block HCB11Q13. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
SLD / Schematic · RCBO
What it represents
This reference locates residual-current breaker with overcurrent protection in Autodesk's IEEE-oriented 1 pole circuit breakers family. An RCBO combines residual-current operation with overcurrent protection in one device. It is often shown as a combined protective function rather than as two unrelated devices. The public library uses HCB11Q13 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits.
Identify which neutral connection is switched, sensed or permanently connected for the selected model. An RCBO differs from an RCCB by its integral overcurrent protective function. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
How to read it
- Identify which neutral connection is switched, sensed or permanently connected for the selected model.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- Record residual-current type
- Record overcurrent curve and rating
- Verify neutral terminal connections
A distinction that matters
An RCBO differs from an RCCB by its integral overcurrent protective function.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview — 1 Pole Circuit Breakers
Public IEEE-oriented 1 Pole Circuit Breakers table explicitly lists HCB11Q13 as Magneto/Thermal with Differential. This supports the vendor convention context, not reproduction of the publisher graphic.
Fundamental characteristics of a circuit-breaker
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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