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JoeUmp is correct that most switches sold by electrial distributors are 120/240 V. A large industry has evolved to supply parts to the automotive manufacturers. These switcches are common at Radio Shack. They differ from 120/240V switches in that they are rated for 12V DC. These are the best choice for DCC or DC analog for that matter. They are rated for 10 to 20A and usually have .25" Faston terminals. The 12V rating is enough because it's harder for a switch to break DC than the pulse packets of DCC. <br /> <br />Ken
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