| Acronym | Definition |
|---|
| RCCB | Residual Current Circuit Breaker |
| RCCB | Remote Control Circuit Breaker |
| RCCB | Radiology Coding Certification Board |
| RCCB | Russell Community Concert Band (Canada) |
| RCCB | Reno Carson City Bowlers (Nevada) |
| RCCB | River City Concert Band (Sacramento, CA) |
| RCCB | Regional Configuration Control Board |
| RCCB | Reverse Current Circuit Breaker |
| RCCB | Robertson County Community Band (Springfield, TN) |
| RCCB | Rome Community Concert Band (Rome, NY) |
| RCCB | Rockland County Concert Band (Garnerville, NY) |
| RCCB | River Cities Concert Band (Kentuckiana) |