Discuss wiring a modular contactor 2 pole n/o in the Industrial Electricians' Talk area at ElectriciansForums.net
A1 and A2 are coil connections (energising...either Live/neutral 230v or phase/phase 400v).....if you are just switching a single pole use either terminals 1 and 2...or 3 and 4.
A1 Energising live
A2 Neutral (from supply side)
1 Permanent Live
3 Supply Neutral
2 Switch Live
4 Load Neutral
sorry to gat crash your post side kick.
For a 230v coil
Just to clarify. For the coil connections for say lighting i would tap off 1(perm live) to a photocell and then sw back to A1. A2 loop off supply neutral. I could also run an overide in parallel to the photcell.
I assume if need be i could have a seperate supply for control of the coil?? to save looping of perm 1 and 2
connection.
Could you explain the 3 thrase coil set up please?
Yes you can keep the coil seperate, by keeping it on its own circuit with just, say a 3A CB, thus ensuring the failure of a lighting circuit (if it fed the coil) would not affect another. This is more applicable in commercial/ industrial wiring, where you may have multiple banks of flourescent lighting.
On a 3 phase coil you need 400v to operate the coil.... therefore you need to use two phases, and not line & neutral
Reply to wiring a modular contactor 2 pole n/o in the Industrial Electricians' Talk area at ElectriciansForums.net
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