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Pick up and drop out coil voltage ratings on C25 coils?

For AC coils, The C25 DP contactors meet the UL requirement of pick-up at 85% or lower of rated voltage. UL does not specify drop-out. IEC does: drop-out of 75% or lower of rated voltage. 

For DC coils they meet the UL requirement of 80% or lower of rated voltage for pick up.  UL does not specify drop-out. IEC does:and drop out of 75% or lower of rated voltage. 

Our DP coils are designed to perform as outline above for both UL and the IEC standard requirements