The Siemens 3RT1044-1A three pole IEC contactor is rated for 65 AMPS AC-3 and 100 AMPS AC-1, 25 H.P. @ 230 volt and 50 H.P. @ 460 volt 3-phase and has an AC coil voltage. This 3 pole Siemens contactor comes with screw terminals and mounts on standard 35MM DIN rail for easy installation. Optional 3RU1146 thermal or 3RB2046 solid state overload relays from 12.5 to 100 AMPS (but should not exceed 65 AMPS) can be installed on the load side of this contactor (terminals T1-T2-T3) for complete motor protection. Front and side mounted auxiliary contacts, in two, three and four pole versions, can be mounted to this Sirius Size S3 65 AMP contactor to add additional signaling contacts in both normally open and normally closed variations.