The Elucian 3 Phase 2 Pole Bi-Directional 40A 30mA RCCB CU3RCD40B is a reliable and high-performing RCCB that offers a trip current of 30mA and a large terminal capacity. With its bi-directional 2 pole design and 3 module width, it is a versatile and practical choice for any electrical system. Keep your home or business safe with this powerful device.