I have an alarm board from Paradox, model SP6000. I power it with 16Vac/2.2A from a 40VA transformer which is connected to the electrical circuit from my house(230V 50Hz). The board has an AUX power line where I can connect multiple consumers(eg. keyboards, motion sensors, exterior siren). In the manual it says that the typical current consumption on the AUX line is 600mA, maximum 700mA and fuseless shutdown at 1.1A.
I connected 2 keyboards(power consumption at max of 250mA based on the manual), 10 motion sensors(8mA idle - 10mA max power consumption for each sensor), external siren(35mA idle + whatever power is needed to charge a 12v/7A battery attached to it) and a communication module which has a max power consumption of 100mA. Based on my calculations the max power consumption on the AUX terminals is 735mA. The alarm board has a separate circuit where used to charging a second battery with 350mA. According to the manual the max power consumtion for the entire board is 1.7A.
The transformer was heating up a lot after 1h of running so I turn it off.
Any advice on what to do? Could it be cause I had too many consumers?