ELECTRICAL PROTECTION
RCBO Units
Combined overcurrent and residual current protection for railway electrical systems
Rowe Hankins Residual Current Breaker Overload (RCBO) units combine circuit breaker protection with residual current detection to help protect electrical systems against overload, short-circuit and earth leakage fault conditions.
The range includes dedicated solutions for single-phase and three-phase AC systems, with different current ratings, residual current settings and trip characteristics to suit a variety of railway and industrial applications.
KEY FEATURES
Designed for reliable earth fault monitoring
Railway Environment Performance
The product range addresses railway electrical equipment requirements, with relevant electromagnetic compatibility, shock and vibration specifications detailed in the individual data sheets.
Compact Panel Mounting
Rear-panel mounting supports integration into electrical panels and equipment assemblies.
Auxiliary Status Outputs
Auxiliary contacts provide status indication for integration with compatible vehicle monitoring and control systems.
Configurable Trip Characteristics
Available variants offer different residual current thresholds and trip delays to suit application-specific protection requirements.
Single and Three-Phase Options
Choose from dedicated two-pole and four-pole configurations for different electrical system requirements.
Combined Fault Protection
Combines overcurrent protection with residual current detection to address multiple electrical fault conditions within one unit.
Our product range
AC and DC earth leakage detection units
SINGLE-PHASE AC PROTECTION
CIDAC373 Series
Designed for single-phase railway and industrial electrical systems, the CIDAC373 Series combines an Airpax IAL circuit breaker with residual current detection. Multiple operating voltage options, trip delays and auxiliary contact configurations support different installation and protection requirements.
THREE-PHASE AC PROTECTION
CIDAC368 Series
Designed for three-phase railway and industrial power systems, the CIDAC368 Series combines circuit breaker protection with residual current detection. Multiple variants provide different current ratings, residual current trip settings and time-delay characteristics for application-specific requirements.
TECHNOLOGY
How RCBO Protection Works
Detecting electrical faults and responding to abnormal conditions
RCBO units combine circuit breaker protection with residual current detection. The circuit breaker responds to overcurrent conditions, including overloads and short circuits, while the residual current detection function identifies current imbalances that may indicate an earth leakage fault. When the applicable trip conditions are met, the unit operates to interrupt the protected circuit.
The available trip thresholds, time delays and electrical ratings depend on the selected model and configuration.
