The 100-E12KY10 contactor is a large IEC 100 contactor that has been manufactured by Allen-Bradley/Rockwell Automation. It is mainly used in industrial applications for motor control. It is part of the Allen-Bradley 100-E line of next-generation contactors. The Bulletin 100-E contactors have smaller dimensions and consume less power than previous contactor models, and they come with universal electronic AC/DC coils that streamline the user selection process with a complete range of available accessories for every situation, such as add-on auxiliary contact blocks, mechanical interlocks, and safety solutions. When using the 100-E12KY10 contactor in combination with Allen-Bradley 140G/140MG model circuit breakers, the users can receive SSR (short circuit coordinated rating) documentation, which aids in the selection of the appropriate components based on their application needs.

The 100-E12KY10 contactor supports switching for premium efficiency standard (IE3) motors. It has 3 poles and a current rating of 12 Amps. This contactor can control motors rated at up to 7.5 kilowatts at 690 Volts AC or 10 Horsepower at 575 Volts AC. The contactor has AC-3 and AC-1 utilization category ratings. The AC-3 option has a rated operational current of 12 Amps at 60 degrees Celsius and the AC-1 option has a rated operational current of 28 Amps at 40 degrees Celsius. Screw-clamp terminals are used for connections to the contactor. The 100-E12KY10 contactor is designed with 3 normally open main contacts and 1 normally open auxiliary contact. The 100-E series contactors are available with a variety of AC/DC electronic coils for ease of use. The electronic AC/DC type of coils in this contactor significantly reduce the power consumption. The control coil voltage range of the contactor is 48 to 130 Volts AC/DC: AC voltage at a frequency of 50/60 Hertz. The ambient air temperature for the contactor's operation ranges from -40 to 70 degrees Celsius.