Haes TPCA027 MZAOV PSU Main PCB
Haes TPCA027 MZAOV PSU Main PCBA power Supply Unit card for Multizone Automatically Opening Vent control panel MZAOV.Key Features28VDC supply input diode protected for reversal and independent short circuitMaximum input current 10A input voltage 22 to 32VDC configurable for either one or both of the inputs to be usedInputs for two RS-485 Peripheral BUS PBUS circuits not currently used the PBUS circuits are not intended for networkingCommon alarm changeover relay contacts max 3A at 30VDC unfused activate when an alarm condition exists on any zone circuit or a trigger condition exists on any external Input circuit28V output fused at 500mA for use by external auxiliary equipment RDUs PSUs etc.Two 24VDC programmable and monitored sounder outputs configurable as FARE and FWRE Fire and Fault routingCommon fault signal changeover relay contacts max 3A at 30VDC unfused normally energised failsafe contacts change-over when any fault is active on the panel or in the event of total power lossConnections for battery temperature sensorOutput connections for 12Ah or 18Ah VRLA batteries charging temperature compensated 27.3VDC output at 20C max. charging current 700mA or 1.2A.Control input from external 3-way fireman control switch for manual control of all vents simultaneously