Automatic Mains Failure Panels  Automatic Mains Failure Panels are electrical  source changeover devices usually for  maintaining the essential services to a building  or site where the continuity of supply is  paramount. Buildings such as hospitals and  computer centres are usually fitted with a  standby generator which will take over the  electrical supply if the electricity boards mains  fails.  These amf panels monitor the loads via a three  phase electronic measuring device and when the  supply falls 'out of limits' the standby generator  is given a signal to start. Once the Generator is running its output is  monitored to ensure it is ready to accept load and then the building is  changed over to the standby supply.  If and when the mains returns it is then automatically reinstated and the  standby generator is shutdown, ready for its next call to duty.     Mertech Automatic Mains Failure Panels come in three types:  1) AMF Panels Include - Automatic Changeover Device plus a Mains   Failure Module & an Electronic Generator Control Module.  2) ATS Panels Include - Automatic Changeover Device Plus Mains Failure  Module with volt free start signal.  3) MTS Panels Include - Manual Changeover Device only. Product Brochure AMF Panels - Floor Standing Product Brochure ATS Panels - With Contactors Product Brochure ATS Panels - With Motorised Switch Product Brochure MTS - Manual Transfer Switches MerTower