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StanierBlack5

Isolating power districts

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Following on from my previous post, would these switches be OK?

 

https://www.amazon.co.uk/ARTGEAR-Universal-Rocker-Toggle-Switch/dp/B07GDCNXKP/ref=pd_vtp_60_13?_encoding=UTF8&pd_rd_i=B07GDCNXKP&pd_rd_r=111e3b0b-8587-4759-a9b3-f66876cce786&pd_rd_w=Q2cBu&pd_rd_wg=kA33J&pf_rd_p=78dd719b-ab64-47e6-8dc1-945f566666b3&pf_rd_r=KZYAEG58TXRW7CX4P43R&psc=1&refRID=KZYAEG58TXRW7CX4P43R

 

These are rated 240V AC but unless I've read this wrong, the track voltage is approx 15V DC  .....  does this make a difference?

 

Thanks in advance, Roger

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7 hours ago, StanierBlack5 said:

Following on from my previous post, would these switches be OK?

 

https://www.amazon.co.uk/ARTGEAR-Universal-Rocker-Toggle-Switch/dp/B07GDCNXKP/ref=pd_vtp_60_13?_encoding=UTF8&pd_rd_i=B07GDCNXKP&pd_rd_r=111e3b0b-8587-4759-a9b3-f66876cce786&pd_rd_w=Q2cBu&pd_rd_wg=kA33J&pf_rd_p=78dd719b-ab64-47e6-8dc1-945f566666b3&pf_rd_r=KZYAEG58TXRW7CX4P43R&psc=1&refRID=KZYAEG58TXRW7CX4P43R

 

These are rated 240V AC but unless I've read this wrong, the track voltage is approx 15V DC  .....  does this make a difference?

 

Thanks in advance, Roger

 

The voltage quoted is the maximum that they are designed to handle - they can safely be used with a lower voltage.  At mains voltage, they will switch 6 Amps, drop the voltage to 125 Volts and they will handle 10 Amps.  A DCC system is both lower voltage and is unlikely to be able to supply that current and if these switches are in individual districts that are limited by 1 Amp circuit protection, then these are more than adequate for what you need.

 

The only thing worth highlighting is that these are Single Pole, so you'd only be switching out one side of each section - the other rail will have to be common. 

 

 

  • Agree 1

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Hi David, thanks for your reply.

 

After reading your explanation I am now wiser than before  -  with regards to Single Pole switches, would it be better if I purchased Double Pole switches and if so, how should they be wired?

 

Many thanks in advance, Roger

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I tend to limit power districts to a baseboard rather then a given track seqment as I don’t want to add extra inter baseboard dcc feeds 

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Usually Double Throw Double Throw (DPDT) have 6 terminals 

Usually Double Throw Single Throw (DPST) have 4 terminals

The diagram shows the symbols & actual switches & hopefully is self explanatory

The DPDT switch has to be in the up position to be on (when wired as shown)

The first DPST switch from the left has to be in the up position to be on (when wired as shown)

 

137990795_wiringasw.jpg.f4b0420debc28f2e50e600115478a0f6.jpg

 

 John

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Many thanks John, yet another diagram to add to my collection  -  most helpful.

 

(Now back in Yorkshire after spending 42 years living in NSW, thought I'd just mention that!)

 

Cheers, Roger

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