Kindly see below:
LA9G970 - For 3 and 4 poles
Electrical circuit type:
Reversing
Star-delta
Changeover
LA9G971 - For 3 pole
Electrical circuit type:
Star-delta
LA9G970 - For 3 and 4 poles
Electrical circuit type:
Reversing
Star-delta
Changeover
LA9G971 - For 3 pole
Electrical circuit type:
Star-delta