Model Number: 9920

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MRC AD520 HO Auto Reverse Loop Module ProductID_12069907 Model Number: 9920This is an MRC AD520 HO Scale Auto Reverse Loop Module. Automatically controls reverse loop circuits. Eliminates conventional block and switch systems. Simple hookup with two input and two output wires; five amp rating. Works with all DCC layouts. 5 amp capacity. Fully automatic. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: MRC Model Number: AD520 MSRP: $49. 98 Category 1: Parts Category 2: HO Scale