Auxiliary Contacts of Pro Dimmers

Is there any reference for the use of auxliary contacts of the pro dimmer? Catalogue says the contacts close on thermal overload or overcurrent condition, but installation manual doesn't say that. We want to know the common use of the contacts, such as for E-Lighting or cooling fans...etc.

 

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The Auxillary Relay on the 4,2 and 1 channel PRO series dimmers is not configerable by software. It is hardware/firmware driven and has normaly open contacts that are closed (ie the coil is powered) when mains is avalable to the unit, the relay will open those contacts if mains goes missing or the dimmer overheats and shuts down. The relay contacts are not rated for large switching currents they are designed to act a dry contacts to ,say, an emergency power back up or remote warning panel to advise that there has been a power cut or tripped breaker on the supply to that dimmer.