1of6 American Hobby Distributors, 57 River Rd, Suite 1023, Essex Jct., VT. 05452 800 -671-0641, firstname.lastname@example.org www.amhobby.com
The PSX-1,2,3,4 AC Series (Rev:H)*
Intelligent, High Power AC, Solid State Circuit Breakers
Compatible with AC, TMCC and DCS
Quick Start: see Pg-6
Designed by Larry Maier Developed by AHD Patent Pending
PSX-1AC: One Output, PSX-2AC: Two Outputs, PSX-3AC:
Three Outputs, PSX-4AC: Four Outputs
All Solid State Operation: Fast, solid state design with
reliable quiet action….no clicks or sparks.
Adaptive Load Reset: Electronically determines if the
overload is a real short or due to excess load in
sound units or lighted passenger cars.
Block Detection: Either a photo cell or current can be used to detect a train in a
block. The photocell can turn off the block.
Over Voltage Protection: If there is an over voltage on the track caused by a
AC System failure or other pow er inputs the PSX will shut dow n and
protect your locomotives.
Range of Current Trip Setting: The currents can be adjusted over a range of 4.8 to
17.8 amps. Values can be set using jumpers.
Very Low Voltage Drop: Breaker On resistance is less than 0.060 ohms, so the PSX
hasalowvoltagedropevenathighcurrents. Much better than detectors that
use a diode voltage drop.
Manual or Automatic Reset: Automatic reset of the breaker after 2 seconds. A sw itch
can be used for a manual reset.
Outputs for LED Indicators: LEDs can be added to monitor the input/output power and
the s tatus .
Output for Audio Alert: An audible sounder can be added to the card to alert if
No Power Supply Needed: Board size: is 4.75 by 2.25 inches
Flash Programmable: Micro P rocessor can accept updated software if needed.
Note: The PSX-1 opera tes by opening one side of the two inputs leads when an overload is
sensed. If you have a situation where both sides of the input line need to be opened on an
overload, use the PSX-AR instead of the PSX-1. The PSX-1 opens the path from J1-4 to J2-2
when the breaker senses an over load. Additional power to the PSX-2, 3, & 4 is connected by
daisy chaining from J1, 1 and 2 to t he next PSX J1, 3 and 4.
*Instructions by Don Fiehmann