3RT1045-1AC24

The Siemens Sirius line of 3RT1045-1A contactors are suitable for use wherever a 3 pole, IEC, UL and CSA rated contactor is appropriate. This size S3 contactor is used in applications up to 75 horsepower at 460v for three phase applications. These contactors come with a 3RH1921-1HA22 4 pole auxiliary with 2 normally open and 2 normally closed contacts pre-mounted to the top. In addition to auxiliary contact blocks, thermal magnetic or solid state overload relays can be added to these Siemens contactors to provide full motor starter protection in the case of an over amperage situation. For mounting purposes, the contactors can either be mounted directly on standard 35mm DIN rail or screwed directly onto the back of the panel or mounting plate.