YJ139-LA38A-11X 21 One normally open one normally closed 20X 21 Two normally open
Color classification:
2-stop holding type 1 Normally open 1 normally closed 2-stop self-duplex 1 Normally open 1 Normally closed 2-stop holding type 2 Normally open 2-stop self-duplex 2 Normally open 3-stop holding type 2 Normally open 2-stop self-duplex 2 Normally open 3-stop holding type 2 Normally open 2-stop self-duplex 2 Normally open 3-stop
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