Thermocable ProReact EN Analogue Composite Control (PACC) Unit + ProReact EN Analogue End-of-line (EOL) Unit monitors one detection zone of Analogue LHD cable with a maximum cable zone length of 500 metres. The unit offers a fault and pre-alarm and alarm output and can be interfaced to a conventional or analogue addressable fire panel. Protection rate : IP65. EN54-22, VdS and UL approved resetable analogue linair heat detection (LHD). The technology has been approved with up to 500 metres per zone for Classes A1I, A2I and BI as part of the EN54-22:2015 certificate. Minimum zone length is 30 metres for Class BI alarm setting and the minimum zone length is increased to 50 metres for the Class A1I/A2I alarm setting