Hager - CDA 263U-161491 - 63a 30mA Inter Differential Double Pole Class A RCCB\n\nHager Part Code: CDA 263U\n\nProduct No:161491\n\nFrom the CDA range\n\nInter Differential RCCB\n\nTo open a circuit automatically in the event an earth fault between phase and earth, and/or neutral and earth. A wide range of current ratings and sensitivities are available. Suitable for domestic, commercial and industrial applications.\n\nThis unit will provide earth fault protection but not overload protection, therefore, the RCCB needs to be used in conjunction with an MCB\n\nTechnical Data\n\nClass A Device\n\nClass A RCBOs and RCDs are not sensitive to impulsive currents up to a peak of 250 A (8/20 wave form). They are particularly suitable for protecting systems in which the user equipment has electronic devices for rectifying the current or phase cutting adjustment of a physical quantity (speed, temperature, light intensity etc.) supplied directly by the mains without the insertion of transformers.