Atlas HO Code 100 #6 Customline Mark V Turnout – Left – ATL393

Atlas HO Code 100 #6 Customline Mark V Turnout – Left – ATL393 is a left-hand HO scale turnout featuring broader #6 switching geometry for mainlines, passing sidings, crossovers, yard approaches and other locations where a smoother diverging route is preferred. Compared with a tighter #4 turnout, the #6 geometry provides a more gradual transition while remaining practical for a wide range of HO scale layouts.

Part of the Atlas HO Code 100 track system, ATL393 features solid nickel silver Code 100 rail with black injection-molded plastic ties. The Atlas Custom-Line design also incorporates a metal frog that can be electrically powered when necessary.

What Does #6 Turnout Mean?

The #6 designation refers to the turnout's frog geometry. In simplified terms, a #6 frog diverges approximately one unit sideways for every six units traveled forward through the frog area.

This produces a more gradual diverging route than a #4 turnout while requiring less space than a broader #8. For many HO scale layouts, #6 turnouts provide an excellent balance between smooth operating geometry and reasonable space requirements.

Left-Hand Turnout

ATL393 is a left-hand turnout. When approaching the turnout from the single-track or point end, the straight route continues ahead while the diverging route branches toward the left.

This configuration can be used to create passing sidings, crossovers, yard leads, industrial tracks and other routes that need to branch toward the left.

Why Choose a #6 Turnout?

A #6 turnout is a versatile choice for model railroaders who want broader track geometry without requiring as much space as a #8 turnout. Its more gradual diverging route makes it particularly useful for mainlines, passing sidings, crossovers and approaches to yards or terminals.

The broader geometry can also be advantageous when operating longer locomotives and rolling stock compared with tighter turnout designs. Equipment requirements vary, so always consider the manufacturer's minimum-radius and trackwork recommendations for the models you plan to operate.

Common Uses for a #6 Left Turnout

• Mainline switches and junctions
• Passing sidings
• Mainline and double-track crossovers
• Yard entrances and exits
• Arrival and departure tracks
• Industrial leads
• Passenger terminal approaches
• Branch-line connections

Powerable Metal Frog

The frog is the portion of the turnout where the rails of the two routes intersect. Atlas uses a metal frog on its HO Code 100 Custom-Line turnout, and the frog can be electrically powered when necessary.

Powering the frog can help maintain electrical pickup through the turnout, particularly for locomotives with shorter wheelbases or limited electrical pickup. The appropriate wiring arrangement depends on the layout's electrical and turnout-control system.

Atlas HO Code 100 #6 Mark V Left Turnout Features

• HO Scale model railroad turnout
• #6 turnout geometry
• Left-hand configuration
• Atlas Customline Mark V design
• Broad, gradual diverging route
• Useful for mainlines, sidings, crossovers and yard approaches
• Metal frog
• Frog can be electrically powered if necessary
• Code 100 rail profile
• Solid nickel silver rail
• Black injection-molded plastic ties
• Designed for Atlas HO Code 100 track systems
• Connects with compatible Atlas HO Code 100 track
• Atlas manufacturer item number 0393
• Fusion Scale Hobbies SKU ATL393

#6 vs. #4 & #8 Turnouts

Turnout number has a major effect on the amount of space required and how gradually the diverging route changes direction. A #4 turnout provides tighter geometry that can be useful in compact yards and industrial switching areas, while a #8 turnout provides a much broader route that is particularly attractive for mainline trackwork where sufficient space is available.

The #6 turnout sits between the two, making it an excellent general-purpose option. It provides broader geometry than a #4 without requiring the additional length and space of a #8.

Build Passing Sidings & Crossovers

#6 turnouts are particularly useful for constructing passing sidings and crossovers. Left- and right-hand #6 turnouts can be incorporated into parallel-track arrangements to allow trains to move between routes or enter and leave a siding.

Carefully plan track centers and surrounding geometry when constructing crossovers, and test your intended locomotives and rolling stock through both turnout routes before permanently securing and ballasting the track.

Build with Atlas HO Code 100 Turnouts

Browse our complete Atlas HO Code 100 Turnouts & Switches collection for #4, #6, #8, curved and other turnout configurations for HO scale layouts.

Combine this turnout with products from our Atlas HO Code 100 Track collection to build or expand a complete HO scale track system.

Complete Your Trackwork

Use Atlas HO Code 100 Flex Track for smooth custom track alignment around the turnout, or combine it with Atlas HO Code 100 Straight Track and Atlas HO Code 100 Curved Track.

For layouts where two independent routes need to intersect, browse our Atlas HO Code 100 Crossings.

Turnout Control & Track Accessories

Browse our Atlas HO Switch Machines collection for turnout-control components and options for operating Atlas HO switches.

For rail joiners, terminal connections, track nails and additional installation components, browse Atlas HO Track Accessories.

Atlas Code 100 track can also be installed over Atlas HO Cork Roadbed to provide a raised track profile and foundation for ballast and finished scenery.

Shop HO Scale Model Railroad Track

Explore our complete Atlas HO Scale Track selection or browse Model Railroad Track for additional track systems, turnouts and layout-building components.

Shop additional products from Atlas Model Railroad and browse Atlas In-Stock Products.