The blocking relay BR4-4 is designed for broadening the functional possibilities and provision with the galvanic isolation the outlet signals of the control panel “ARTON-04P”, “ARTON-08P”.

The blocking relay can be used for the transmission of signals to the centralized supervision desk, the management of notification signals etc. It consists of 4 relays; each of them can function as normally-closed or normally-open depending on the position of the corresponding jumper strap JP1-JP4.