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Introduction

Thank you for purchasing the MTH Electric Trains RealTrax O-42 Switch.  As 

with all RealTrax products, you will find the O-42 Switch easy to install into 

your layout  whether it be a permanent or temporary one.  There are no 

plastic and/or metal pins to lose or confuse.  The setup is simple; with only 

three connections of easy to attach connectors and the turn of a screw, your 

RealTrax Switch will be up and running in no time!

The RealTrax O-42 Switch performs all of the functions of other switches, 

but better.  It has a double-microswitch driven non-derailing feature.  Inside 

the Switch Block (lantern housing) are four powerful but efficient and quiet 

solenoid coils that drive the switch points back and forth at a voltage and 

current draw as yet unexperienced in model railroading.  The RealTrax 

Switch operates on only 10Volts and 1.25Amps.  It has a spring assisted 

mechanism that ensures that the points always will be in the correct 

position.  If you change directions with a RealTrax Switch, you will not have 

to worry about derailments or electrical short circuits.  

The RealTrax Switch can be wired for operation via track power or auxiliary 

power.  Also, you will be able to operate several RealTrax Switches together  

by following the appropriate illustrated diagram(s) in this manual.  It can be 

installed into a layout to have powered and unpowered sidings for multiple 

train operation (see figure 14).

The RealTrax O-42 Switch is constructed of sturdy ABS plastic,  solid 

extruded rails and simple yet sturdy electronics.   The design has been 

streamlined with features like a Switch Block Cover that hides the opening 

to the switch's underside and a Screw Terminal Cover that hides the 

traditionally unsightly yet necessary wire connections.  The design follows 

other RealTrax items so that it blends into your layout, instead of standing 

out.  With its ruggedness and slim styling, the RealTrax O-42 Switch will 

give you years of trouble-free operation on either your RealTrax or your 

tubular rail O-Gauge model railroad.  

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Summary of Contents for RealTrax 0-42

Page 1: ...046 1532 WWW MTH RAILKING COM O 42 S W I T C H MTH RealTrax switches add flexibility and reliability to your O Gauge RealTrax layout Designed to provide years of trouble free smooth operation RealTrax...

Page 2: ...le Switch Operation Through One Remote Switch 10 Track Power Opposite Throws Auxiliary Powered Switch Operating Instructions 10 Multiple Switch Operation Through Separate Remote Switches 11 Multiple S...

Page 3: ...ts always will be in the correct position If you change directions with a RealTrax Switch you will not have to worry about derailments or electrical short circuits The RealTrax Switch can be wired for...

Page 4: ...4 Switch Block Consists of housing solenoid coils and lantern The Switch Block attaches to either rectangular port at the converging end of the Switch The Switch Block may be attached to either side...

Page 5: ...5 1 2 3 4 5 Figure 1a...

Page 6: ...t causes the points rails that shift positions to align with the curved direction of travel The Curved AC Screw Terminal may be connected to either the RED wire of the Remote Switch or an external AC...

Page 7: ...NAL The JUMPER between the fourth and fifth SCREW TERMINALS remains in place Basic Switch Operation Now that your RealTrax Switch is wired you will be able to operate it via any of the following metho...

Page 8: ...ng it firmly into the roadbed Install the Switch Block Cover into the other side 3 You will have to change the position of the Switch Block Lantern so that the Green lenses align to the straight direc...

Page 9: ...crew terminal of the Primary Switch to the STRAIGHT AC screw terminal of the Secondary Switch Connect the CURVED AC screw terminal of the Primary Switch to the CURVED AC screw terminal of the Secondar...

Page 10: ...w terminal of the Primary Switch to the ACG Common screw terminal of the Secondary Switch Remove Jumper between Track AC Out terminal and Aux Power AC In terminals Save the jumper for future use Conne...

Page 11: ...Power AC to all auxiliary powered switch Aux Power In AC screw terminals either in series from one Switch AC terminal to the next or in parallel each Switch AC terminal is wired directly to the auxil...

Page 12: ...itch Connect Auxiliary Power ACG Common to ACG Common screw terminal of primary switch Connect the STRAIGHT AC screw terminal of the Primary Switch to the CURVED AC screw terminal of the Secondary Swi...

Page 13: ...pter Track section 5 long to each arm of the RealTrax O 42 Switch The steel pins of your tubular track will insert into the tubular rail portion of the RealTrax Adapter Track Figure 13 13 RealTrax Ada...

Page 14: ...ding Figure 14 Layout Instructions Note this layout requires a Single Pole Double Throw switch minimum 3A rating available at a hardware or electrical store 1 To assemble a RealTrax layout for Powered...

Page 15: ...Track AC Out Screw terminal and the Auxiliary AC Power In Screw Terminal is installed If using Aux Power check connection If using auxiliary power to operate the switch check that the jumper between...

Page 16: ...ditions that may result in the risk of fire electric shock or injury to persons such as damage to wires clips or other parts and that in an event such conditions exist the Switch should not be used un...

Page 17: ...less of whether you discussed the problem with a service technician when contacting the Service Center for your Return Authorization Please make sure you have followed the instructions carefully befor...

Page 18: ...29 4811 T S G HOBBIES SALEM WARRENTON 603 898 7224 CONNECTICUT 540 347 9212 NEW ENGLAND HOBBY NEW YORK SUPPLY WISCONSIN AURORA RAILS HOBBIES MANCHESTER SOMMERFELD S TRAINS EAST AURORA 860 646 0610 BUT...

Page 19: ...IANA 303 777 6766 LIL BOBBY S HOBBIES Y O R K TRAINS MONTGOMERY MUNSTER MIZELL TRAINS 334 277 1715 219 838 9999 WESTMINSTER 303 429 4811 SAMUELSON S TRAIN SHOP ARIZONA VALP ARAISO ARIZONA TRAIN DEPOT...

Page 20: ...RIDGEFIELD HOBBY 301 694 8331 AKRON RIDGEFIELD 330 253 6527 201 943 2636 MASSACHUSETTS E S TRAINS NORTHEAST TRAINS TOM S MODEL TRAINS AKRON PEABODY SCOTCH PLAINS 330 745 0785 978 532 1615 908 322 612...

Page 21: ...INIA TRAINS R FUN BUSSINGER TRAINS PA TRICK S TRAINS FRAZER AMBLER WHEELING 610 644 4585 215 628 2366 304 232 0714 JIM S HOBBY SERVICE SOUTH CAROLINA WISCONSIN BERWICK EMERALD TRAIN HOBBY WOODCRAFTERS...

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