Best Circuit Breakers for Lionel Post War Layout?

Search for Airpax or PSX AC. The Airpax will be more cost effective, as you would need four PSX ACs and they are more expensive.

For conventional running there are two good options: Airpax Instant Magnetic Breakers and the Lionel #91 Magnetic Breaker.

Lionel #91 breakers can be purchased used in various places including Ebay.  They have an adjustable trip current setting that you can dial in to your liking.

Here is a link to more information about Airpax Instant Magnetic Breakers and where to buy them.  For the ZW, depending on what types of trains or accessories you're running on each output, the 5, 7.5, or 10 Amp breakers work well.  For the 1033, the 5 Amp should be a good choice.

Thanks SteveH. I have a 91 circuit breaker, but I don't know how to adjust the trip current yet. Thanks for your help.

If you are keeping true to postwar form and not using modern engines with electronics, the 91 is the way to go. They work well. run your trains for 15 minutes the adjust the knob until it trips then add 1/4 turn.

Hi Chuck. I can't seem to find the knob on my Lionel 91 circuit breaker. Can you please elaborate? Thanks.

That is the prewar 91 circuit breaker. What you want is the postwar 91 circuit breaker. Tan plastic case, black knob to adjust the current, red reset switch which lights when tripped. I use one on each handle of my ZWs. Trips very quickly with almost no sparking on a derailment.   Lots of them around.

@David Johnston posted:

That is the prewar 91 circuit breaker. What you want is the postwar 91 circuit breaker. Tan plastic case, black knob to adjust the current, red reset switch which lights when tripped. I use one on each handle of my ZWs. Trips very quickly with almost sparking on a derailment.   Lots of them around.

Indeed. I've got these breakers on my Postwar layout. Also one each per handle. Work great.

Understood. Thank you!

The #92 is another option although not adjustable.

https://www.tandem-associates....el_trains_92_acc.htm

@SteveH, I just bought a 10 Amp Airpax circuit breaker from the link you had in the other thread.  Thanks for the clear recommendation.  I have a new (to me) refurbished 275 watt ZW, and I always respect electricity.