Smart Switch Issue - Outside 12v Lights

[CSutton]

Does that device have a series resistor built in ? A fusible resistor in the device provides protection if the capacitor goes short cicuit.

Contact suppressors have a resistor built in and are ideal for this application.

KEMET RC Capacitor 470nF 100Ω Tolerance ±20% RS Components Stock Number 172-6734

Other sources are availane

Many thanks Bernard. One ordered today. Quick question, can I cut the length of the metal connectors to suit? Thanks, Chris

 

[CSutton]

Does that device have a series resistor built in ? A fusible resistor in the device provides protection if the capacitor goes short cicuit.

Contact suppressors have a resistor built in and are ideal for this application.

KEMET RC Capacitor 470nF 100Ω Tolerance ±20% RS Components Stock Number 172-6734

Other sources are availane

Many thanks Bernard. One ordered today. Quick question, can I cut the length of the metal connectors to suit? Thanks, Chris

 

[CSutton]

Does that device have a series resistor built in ? A fusible resistor in the device provides protection if the capacitor goes short cicuit.

Contact suppressors have a resistor built in and are ideal for this applicationb.

KEMET RC Capacitor 470nF 100Ω Tolerance ±20% RS Components Stock Number 172-6734

Other sources are availane

Many thanks Bernard. One ordered today. Quick question, can I cut the length of the metal connectors to suit? Thanks, Chris

 

[bernardgreen]

Yes the leads can be cut. It is sensible to sleeve them.

 

[CSutton]

Yes the leads can be cut. It is sensible to sleeve them.

Was going to cut them so they terminated flush in a connector each?

 

[bernardgreen]

Leave a small gap between the case of the capacitor and the plastic of the terminal block ( ~1 mm). The avoids putting a strain on the leads when the screws in the terminal block are tightened. Also double the leads back on themselves so there are two bits of lead under the terminal block screw

 

[CSutton]

Leave a small gap between the case of the capacitor and the plastic of the terminal block ( ~1 mm). The avoids putting a strain on the leads when the screws in the terminal block are tightened. Also double the leads back on themselves so there are two bits of lead under the terminal block screw

i can order sleeve for them. Which size sleeve… 2/3/4mm? Cheers Chris

 

[bernardgreen]

I use insulation recovered from stripping cables. If the capacitor is that close to the terminal block ( no exposed copper ) then no need to sleeve the leads

 

[CSutton]

Understood. Great. Will let you know how I get on. Chris

 

[CSutton]

Part arrived today but unfortunately hasn’t resolved the problem. The smart switch also fails to automatically calibrate with the capacitor on the circuit. Looks like I will need to find a different smart switch or revert to traditional method.

 

[bernardgreen]

The capacitor needs to be across Neutral and Switched Live that connect to the lamp.

From your picture I am not sure that is how you have connected it

 

[CSutton]

This is the only part of the circuit I can access as the connecting box to the transformers is under the decking as per original post.

The live is the original lighter brown and switched lives are darker one to transformer 1, the other to transformer 2?