Enhance your electrical safety with the Siemens 3UL2305-1A Residual-Current Transformer. Designed for precise residual current monitoring, it features a 105 mm bushing opening and operates within a fault current range of 30 mA to 40 A. With robust protection against surges and a wide temperature range, this transformer ensures reliable performance in any environment. Trust in Siemens for superior quality and safety in your electrical systems.