Someone said do not switch while runnig other said it does not matter well the owner manual said.........For use with alternators and generators rated 6-50 V.D.C. switch rating: 250 amperes continuous, 360 intermittent. Locate switch to keep battery cables short as possible. All wiring to the switch shall be preformed by a QUALIFIED MARINE ELECTRICIAN, and in accordance with the “Fire Protection Standard For Motor Craft”, N.F.P.A.* No. 302, The Standards of the American Boat and Yacht Council, Inc.*, and the U.S.C.G.* Safety Standards for Boat Electrical Systems (33 CFR 183). CAUTION: (1) Make sure connections at terminals No.1 and No. 2 are of the same polarity. (2) Always STOP engines before switching to “OFF” position. Make-Before-Break feature allows switching between 1-all-2 positions with running engines. Erratic operation, particularly after very long periods of idlen..........
