4Access. Circuit Control Box is a model railway accessory designed to support, enhance, or detail a layout in HO scale.
Featuring:- Electrical Component: The 4Access. Circuit Control Box is used for controlling electrical circuits within a model railway layout, providing reliable switching for various layout functions.
- Scale & Layout Compatibility: Compatible with HO scale model railway systems.
- Integration & Expansion: Designed to integrate with Marklin layouts, allowing for seamless control of electrical accessories and track sections.
- Brand: Marklin
- Accessory Category: Electrical
- Compatibility Notes: Compatible with Marklin HO systems
- Included: Circuit control box
Suitable for modellers working in HO scale layouts who want to improve layout functionality by adding reliable electrical control to their railway systems.
Why this accessory mattersThe 4Access. Circuit Control Box enhances operational capabilities by providing dependable electrical switching, making it easier to manage and automate various functions within a Marklin HO layout.
How to use itInstall the circuit control box according to Marklin’s instructions, connecting it to the appropriate electrical circuits within your HO scale layout. Ensure all wiring is completed as specified by the manufacturer for safe and effective operation.

