Functioning
The receiver is actuated by means of a current pulse triggered by pushing any bell push connected to the relay. The receiver is deactivated by another pulse or after a preset time. Long press, lasting a minimum of 2 seconds, press the button will attach the contact permanently in continuous lighting mode until another pulse has been sent to deactivate the relay.
The relay does not “memorize” the position of the relay contact, i.e. in case of supply voltage decay and the subsequent return of supply voltage, the relay contact will be set in the off position. Such a solution prevents the automatic actuation of the receivers controlled that might occur without proper supervision after a long-lasting decay of supply voltage.
Attention!
BIS-413Mi 230V is compatible with bell pushes equipped with fluorescent lamps. 
Tips
Illuminated buttons
If too many illuminated buttons are connected, the lighting may switch on spontaneously or switch on permanently. Maximum load current The contact current given in the technical data is the maximum value and may be subject to restrictions – more information. If the information provided indicates that the relay in the device is insufficient, it is recommended to use an external switching element (e.g. contactor) adapted to switch large surge currents. State memory The relay version with the letter “M” has a contact position memory, i.e. after switching on the power supply, the relay state will be restored to the state it was in at the time of switching off the power supply. Resistance to surge currents The device uses an “inrush” type relay characterized by high resistance to short-term surge currents generated, for example, when switching on LED lamps, ESL fluorescent lamps, electronic transformers, discharge lamps, etc.
