Double Crossover Relay Burned Out, Again

Need more detail to help. When you say the relay "burned out". Was it the coils or the contacts? Please reference what relays are being used.

Dale H

 When you line the crossover for the diverging routes do both diverging routes throw at once?  This is where I always got into trouble.  You could get the relay to supply the power to the borrowed rail but it only worked one way, The other crossover route  was a dead short. I think I ended up creating routes were only one crossover could be lined at a time. Dale will get you fixed up.

Dale,

It's a DZ-1008, I'm not sure about contacts or coil; I have to get over there, as in across the Kill Van Kull, NJ to SINY.

Greg,

They are wired per spec with two toggles.

1     2

   X

2     1

I use 4 Tortoise switch machines and their contacts to throw & correctly power the rails. 

I also threw in a pair of circuit breakers to redundantly protect the diamond,

The setup only allows one pair of LH or one pair of RH turnouts to be thrown.

Bob

I was unfamiliar with the switched so I looked it up on the net. Here are 2 google pics.Click on any pic to enlarge.

The problem I assume is the relay failing to switch the rail power and pickup rollers shorting out paired 1 and/or paired 2 rails burning out the relay contacts. Here is a possible solution using 2, 24VAC relays DPDT 10 amp or more and a 4 position slide switch. You could also use a 3 position one but I have a 4 position one in my parts bin so i drew it that way. If you are unfamiliar with this switch it makes adjacent contacts as it slides. In the diagram,the "B" route would be with the switch slid to the bottom.The "A" route with the switch slid to the top. The straight route would be in the middle positions.  It is more complicated but you could also use 3 push buttons. I drew it for a PWZW but you could use most any transformer.

 Keep in mind I do not have this crossover so I can not test the circuit. I do throw my Ross tinplate switches with DZ1000 machines in a similar manner with relay contacts on an automated passing siding.

LINK

Also shown is an optional indicator LED for the straight position. Similar indicator lights can be tapped off the relay coils as route A or route B indicators. The relays effectively switch the center 1 and 1 or 2 and 2  with the direction of the switch routes. The circuit assumes the machines are thrown but does not verify it as the Ross DZ1008 relay would. However if the switch machines are working properly this should not be a problem.The slide switch selects one or the other (not both) or no relay coil.  The relay contacts configure the power distribution.

Since the relays used in this diagram are 10 amps or more,the transformer circuit breaker would protect the contacts even if it were shorted,which should not happen with this circuit.

Feel free to Email me with questions if interested in this circuit.

Dale