Outdoor PIR E5750WPL

Hi,

I've got a customer who really isn't keen on the E5750WPL outdoor PIR. I hear this often due to the looks of them.

I had been told that I could use any PIR if I asked the electricians to install a twin and earth to give power and a CBus pink Cat5 back to the rest of the CBus and then linked to a L5504AUX 4 channel auxiliary input

I now believe for this to work I need a outdoor PIR with volt free contacts. Please could someone advise if this is correct and if so if anyone know of a nice looking one in black.

The only ones I've found so far are GJD sensors. Would these work?

If anyone from CBus reads this the ideal solution would be for you to create a nice looking one. After speaking to other installers in the past this would be massively appreciated.

Thanks
Mike

 

My preference in this situation has always been to use the cbus sensor, however if the customer is particularly fussy as they can be I have successfully used the Clipsal 757SRR sensor with the 757FRM voltage free output relay for the sensor and a 5102BCLED cbus bus coupler..

Its a fairly tidy looking unit which has some pretty good features..

 

Hi Mike

There are a couple of options.

As you have suggested, using a unit with voltage-free contacts will provide a solution. You then feed the 'signal' (connection from the normally open voltage free contacts)to either a C-Bus Auxiliary input unit or a C-Bus bus-coupler. Deciding which C-Bus device to use will depend upon how close the C-Bus unit is to the voltage free relay (by 'how close', I mean the cable length from the contact to the unit and not the physical distance of the respective units). Under 1 metre, the bus-coupler will be OK. Over this distance, use the Auxiliary input unit.

You could also have your electrician create a voltage free unit by feeding the output of the sensor into a mains relay and then take the signal from the relay contacts. The electrician will just need to make sure the sensor is the type that takes a neutral connection (3 wire design) as a 2 wire design probably won't drive just a relay coil.