The Hager Earth Leakage Circuit Breaker (ELCB/RCCB) CDC441J is a high-quality electrical safety device designed to protect against electrical shock and fire hazards. It features a 40A current rating, 4 poles, and a 30mA residual operating current. The breaker is compliant with IEC 61008-1 standards and operates at a frequency of 50Hz. It is compact with dimensions of 9.6 x 7.6 x 7.6 cm and weighs 340 grams, making it suitable for various electrical distribution applications.