the MRH Forum

DCC circuit breaker delema Track and electrical/DCC
Reply
Regular poster 367 posts casenundra Regular poster 367 posts
casenundra

Most DCC breakers and reversing loops require about 5 amps. of current to cycle. The MRC Prodogy Advanced  system uses 3.5 amps. So how do I protect my system?

Rich S.

Home of the Here N There RR (N) (under construction)

One of these days I'll be able to run some trains!

Now on Facebook for whatever that's worth.
Reply 0
JRG1951 Frequent poster 786 posts
JRG1951

Adjustable Trip Current

The Power-X Shield has adjustable current settings. I'm sure others do too.

From the manual: Wide Range of Current Trip Setting: The currents can be adjusted over a range of 1.27 to 17.8 amps. Values can be set either with CV settings or Jumpers.

Information here: http://www.dccspecialties.com/products/powershield_x.htm

Regards, John *****************************

EngChart.jpg 

BBA_LOGO.gif 
Reply 0
jrbernier Regular poster 245 posts
jrbernier

DCC Trip Current

I have installed both the PSX(DCC Specialties) and PM42(Digitrax) units - They both have adjustable current trip limits.  It's all explained in the setup/manuals.

Jim

Modeling The Milwaukee Road in SW Wisconsin
Reply 0
NDHolmes Active Member 61 posts
NDHolmes

PSX breakers

I'll add a second vote for the PSX series of breakers.  They have the ability to have different current trip limits (set via operations mode programming), but I've found that their "smart" logic for determining what's a short and what's just an engine terminal full of sound decoders is really darn good.   For one of the layouts I'm the electrical guy on, we have two PSXs on a 3A booster, we never bothered to change the trip current.  The booster will put out much higher current for short intervals, and I've found that's almost always enough to get the PSX to trip.  Your mileage may vary, but it might just work without configuration.
Reply 0
Reply