Check the listing for details. Atlas #200 Snap Relay HO / N. Color: Black, Condition: New. Listed at 20.95 USD. ATLAS SNAP RELAY ATLAS #200 All Snap Relays are brand new, in their original box, and never used. The Atlas #200 Snap Relay is a double-pole, double-throw relay with an actuating mechanism driven by a momentary power, twin coil solenoid. (A solenoid is a cylindrical coil of insulated wire in which an iron core is made to move back and forth by a flow of electric current.) With just a few simple connections, this small device, which may be mounted anywhere, can... - Power the frogs on Atlas' Code 100 Mark 3, IV & V and Code 83 Custom Line Turnouts - Control trackside signal lamps to show turnout point positions - Operate control panel lamps to show settings of remotely located turnouts (switches) - Provide selective track siding control. Sidings are powered only when points are aligned for siding. Siding remains dead when points are set for the mainline. - Control X-sections automatically. This very useful track arrangement is thoroughly discussed in the Atlas Complete Wiring Book Please Note: If buying multiple snap relay packages and/or other items from The Train Connection, please place all of your items in the cart by clicking on "add to cart" instead of "buy it now" and then click on "request total" before paying, so that you can receive the less expensive combined shipping rate. We appreciate your business and have fun model railroading! This product is brought to by The Train Connection Thanks for stopping by our store! Check out our other items at www.ebay.com/str/TheTrainConnection The Train Connection, Smyrna, Tennessee, USAMerchants for quality HO & N scale model railroad products since 1997 Specializing in... - Atlas Model Railroad HO & N scale items including locomotives, rolling stock, track, structures and accessories - MRC Power Packs, DCC Train Controls, and Sound Systems - Kato HO & N Scale UniTrack System & Locomotives - Bachmann EZ Track for HO & N scale layouts - Railroad Music & Train Sound CDs International Buyers – Please Note: - Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. - Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. - These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges. - We do not mark merchandise values below value or mark items as "gifts" - US and International government regulations prohibit such behavior.