Model: NP2-BD21 2 position latching, 1 normally open （1NO ）. NP2-BD23 2 position latching, 2 normally open（2NO ）. NP2-B D25 2 position latching, 1 normally open + 1 normally closed（1NO 1NC ）. NP2-BD33 3 position latching, 2 normally open（2NO ）.
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