Residual Current Circuit Breakers (RCCB) | Residential/commercial circuits with ground fault risks (e.g., kitchens, bathrooms) | 6kA breaking capacity (IEC 60947-2) ▲ 6/10/16mA sensitivity (IEC 61008-1) C-type curve (IEC 60947-2) | ▲ Enhanced fault detection (trips at 6mA leakage) Compact design for easy installation GFCI integration for safety | Higher cost than MCBs Requires proper wiring for optimal function |
Miniature Circuit Breakers (MCB) | General circuit protection in homes/offices | 6kA breaking capacity (IEC 60898) 63A rated current (IEC 60898) B/C-type curves | Cost-effective Simple installation Overload protection | No ground fault protection Limited to overcurrent detection |
Residual Current Circuit Breakers with Overcurrent (RCBO) | Industrial/commercial circuits needing dual protection | 6kA breaking capacity (IEC 60947-2) 10mA sensitivity (IEC 61009-1) B/C-type curves | ▲ Combines RCD and MCB functions Space-saving design | Complex wiring requirements Higher cost than standalone devices |
Molded Case Circuit Breakers (MCCB) | High-current circuits in industrial settings | 10kA breaking capacity (IEC 60947-2) 250A+ rated current D-type curve | ▲ Handles high fault currents Long lifespan (up to 20k operations) | Bulky size Slower response time for short circuits |
Earth Leakage Circuit Breakers (ELCB) | Legacy systems requiring ground fault protection | 5kA breaking capacity (IEC 60947-2) 30mA sensitivity | Cost-effective for older systems | ▲ Less reliable than RCCB (susceptible to neutral wire faults) Outdated standard |
Surge Protective Devices (SPD) | Critical equipment protection (servers, HVAC) | 100kA surge rating (IEC 61643-1) Response time <25ns | ▲ Blocks voltage spikes (protects sensitive electronics) Long service life | Requires pairing with circuit breakers No overload protection |