LA1-D series auxiliary contact blocks are installed on the top of CA2-D control relay or LC1-D AC contactor for expanding the couples of auxiliary contacts points. Owing to adopting the contacting functions of sliding frictions, the item can be self-cleaning & ensure the electric circuit to be reliable. LA2-D timer delay auxiliary contact blocks are combined with LC1-D AC contactor & LA1-D auxiliary contact block into LC3-D star delta reduced voltage starter to start motor.
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