Product Description
The Siemens 3RT1055-6A three pole IEC contactor is rated for 150 AMPS AC-3 and 185 AMPS AC-1, 60 H.P. @ 230 volt and 125 H.P. @ 460 volt 3-phase and has an AC coil voltage. This 3 pole contactor comes with screw connection terminals (bolt-on) and base mounts to the back of the panel. Optional 3RB2056 solid state overload relays from 50 to 200 AMPS (should not exceed 150 AMPS for this contactor) can be directly connected to the load side of this contactor for complete motor protection. Front and side mounted auxiliary contacts, in two, three and four pole versions, can be mounted to this Siemens Size S6 3 pole contactor to add additional signaling contacts in both normally open and normally closed variations. Front and side mounted auxiliary contacts, in two, three and four pole versions, can be mounted to this Siemens 115 AMP contactor to add additional signaling contacts in both normally open and normally closed variations.
| AMP Rating |
150 AMP AC-3 185 AMP AC-1 |
| Coil Voltage | AC coil |
| Horsepower |
125 H.P. @ 460 volt 60 H.P. @ 230 volt |
| Auxiliaries |
2 side mounted, each with 1 NO/1 NC |
| Terminals | Bolt on lugs |
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The contactors can be equipped with a maximum of 8 auxiliary contacts, with identical auxiliary switch blocks from S0 to S12. Of these, no more than 4 are permitted to be NC contacts.
The magnetic coil is switched on and off directly with the control supply voltage Us via terminals A1/A2.
To allow easy coil changing, for example if the application is changed, the magnetic coil can be pulled out upwards without tools after the release mechanism has been actuated, and can be replaced by any other required coil of the same size.
