WEG Residual Current Circuit Breaker

The WEG Residual Current Circuit Breaker (RCCB), designated in the WEG portfolio as the DR series, provides earth-fault and personal shock protection in low-voltage distribution systems with rated currents of 25 A, 40 A, 63 A, and 100 A, and residual operating currents of 30 mA (personal protection), 100 mA (fire protection), and 300 mA (equipment protection). Available in 2-pole and 4-pole configurations, the WEG DR RCCB detects imbalance between live and neutral currents caused by earth faults or leakage through a person, tripping in less than 30 ms at rated residual current — well within the 300 ms IEC 60479 lethal shock threshold. In Saudi Arabia, RCCBs are mandated by the Saudi Building Code and SEC regulations for all domestic final circuits and bathroom/kitchen circuits in commercial premises, making the DR series a high-volume product for residential electrical contractors and panel builders nationwide.

The WEG DR RCCB is designed and tested to IEC/EN 61008-1, the global standard for residual current operated circuit breakers without integral overcurrent protection. The device features a toroidal current transformer that monitors differential current with high sensitivity, combined with a magnetically latched relay mechanism that trips without requiring a power supply — ensuring reliable operation even during brownout or pre-fault voltage dip conditions. The 4-pole version monitors all three phases and neutral, providing complete earth-fault protection in three-phase TN-S systems used in Saudi industrial facilities and commercial buildings. DIN-rail mounting on a standard 35 mm rail, labelled test button for routine six-monthly testing per IEC 60364-6 requirements, and IP20 terminal shrouds complete the package.

Residential and commercial developments in Saudi Arabia — including the massive Sakani affordable housing programme, NEOM's residential clusters, and Red Sea Project hospitality facilities — require RCCB protection on all circuits per IEC 60364 and the Saudi National Electrical Code based on NEC/IEC principles. The 30 mA variant is the standard for socket outlet and bathroom circuits, while 100 mA and 300 mA types are used for selective coordination in tiered protection schemes where nuisance tripping must be avoided on industrial loads with inherent leakage. The WEG DR's type-test certificates from accredited laboratories and CE marking satisfy SASO import clearance, and the range is fully stocked by Razz Middle East for immediate delivery to Saudi electrical contractors and wholesalers.

Razz Middle East distributes the WEG DR RCCB range across all current ratings (25 A to 100 A), pole configurations (2P, 4P), and residual current settings (30 mA, 100 mA, 300 mA) from local Saudi stock. Bulk pricing for residential project quantities is available with project-based discount schedules. Our technical team provides coordination studies to help consultants and contractors design correct RCCB selectivity schemes for multi-storey buildings and industrial distribution systems, ensuring both personal protection and minimised nuisance tripping — a common concern in Saudi projects with variable-speed drives and IT equipment generating leakage currents.