Can I apply a higher voltage to the mechanical latch option?
All mechanical latches (ML) for use with the MC contactors have a operation voltage. This is the recommended voltage to apply to properly operate the mechanical latch. ML Units operate by a short voltage pulse. Therefore it is okay to use a voltage which does not match the exact operation voltage.
For example, an AC 200 ~ 240V coil will still work properly with a 277V signal. This works since the voltage is only slightly higher than the advertised range and the pulse duration is very short.
It is highly recommended to contact LS Electric America Technical Support before applying any supply voltages outside of the advertised specification.