We are D & S Control Systems Limited based in Preston , UK. Our business is related to Electrical & Electronics Supplies industry and we specifically deal in LV Switchgear, Auto Change Over Panels. Please find our product details below:40A Auto Change Over Panel40A 4 Pole AC1 Auto Change Over Contactor Panel. Pre wired, Assembled and tested. 415V 50Hz AC Supply. Shipped ready for installation, Factory tested prior to shipping.Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.