This Electrak IAB405A module and RCD 40A is a must-have for any professional looking to improve their electrical equipment and supplies. Designed with the latest technology, this module will provide you with reliable protection against electrical faults. Whether you're a business owner or a DIY enthusiast, this Electrak module is perfect for all your electrical needs. With its sturdy construction, you can rest assured that it will withstand even the toughest conditions.