Allows to monitor two independent detection points.
The alarm of the spark detector activates the STOP circuit (it turns on the alarm, stops the fan and closes the duct valve) which is held active until manual reset through the RESET button.
The TEST button is used to check the system.
It carries on the front panels alarm, power, overload/short circuit and reverse polarity lights.
Cast aluminium case, IP66 protection.
Voltage 24Vdc 36W.