It is for O and S gauge

The normally open contact tyically connects to the red light

These engines were popular where lumber was harvested and other specialized industrial work took place

& comes disassembled

Trainz Product Id: 12360303

Kramer L-2 Lot of 10 O Scale Figures Cowboys, Indian, Dolly, Workers, Dolly ect VariantsUnitPrice_number_64.49 It is for O andThis is a Kramer L 2 Lot of 10 O Scale Figures Cowboys, Indian, Dolly, Workers, Dolly ect Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Kramer Model Number: L 2 MSRP: $49. 99 Scale Era: O Modern Model Type: Figures The Trainz SKU for this item is P12581697. Trainz Product Id: 12581697