Lionel 6-12029 | FasTrack Accessory Activator Pack - Insulated & Isolated Sections | O Gauge

Add operating accessories to your Lionel FasTrack layout with this Accessory Activator Pack. The insulated and isolated track sections let your train's wheels trip crossing gates, highway signals, and other trackside accessories automatically as the train passes over — no extra wiring tricks required.

Looking for more O Scale track and accessories? Browse our O Scale Trains & Track and O Scale Track & Accessories.

• Activates crossing gates, signals, and other trackside accessories without extra wiring.
• Compatible with all Lionel FasTrack O gauge components — just snap it into your existing oval.
• Roadbed-style ties match the rest of the FasTrack system for a finished look.
• Solid steel rails with a nickel-silver finish for reliable conductivity.
• Works with most Lionel FasTrack-compatible accessories that have an isolated-rail trigger input.
• Scale: O Gauge (1:48)

What does an "accessory activator" actually do?
The center rail is split so when a train passes over the insulated section, its metal wheels and axles complete a circuit that triggers a connected accessory — like dropping a crossing gate or flashing a signal — until the train moves past.

Will this work with my existing Lionel FasTrack layout?
Yes. These sections snap directly onto any standard FasTrack track. They're drop-in replacements for a 10" straight and two 5" straights.

What accessories can I trigger with this pack?
Most Lionel-style operating accessories that use isolated-rail triggering: crossing gates, highway flashers, semaphore signals, block signals, and many third-party accessories built to the same standard.

Do I need a special wiring setup?
No. The activator pack handles the isolation. You connect your accessory's trigger wire to the activator section's terminal, and your train does the rest as it rolls past.