SIEMENS 3RT1055-6AF36 Contactor

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                                                                                                                                                                                                                                                                                                                                                                                SIEMENS 3RT1055-6AF36 Power Contactor

                                                                                                                                                                                                                                                                                                                                                                                Part Number: 3RT1055-6AF36
                                                                                                                                                                                                                                                                                                                                                                                Product Name: SIRIUS Power Contactor
                                                                                                                                                                                                                                                                                                                                                                                Type: 3-Pole Power Contactor
                                                                                                                                                                                                                                                                                                                                                                                Frame Size: S6
                                                                                                                                                                                                                                                                                                                                                                                Application: Motor Switching and Industrial Control

                                                                                                                                                                                                                                                                                                                                                                                Key Technical Specifications

                                                                                                                                                                                                                                                                                                                                                                                Specification	Details
                                                                                                                                                                                                                                                                                                                                                                                Brand	Siemens
                                                                                                                                                                                                                                                                                                                                                                                Model	3RT1055-6AF36
                                                                                                                                                                                                                                                                                                                                                                                Product Type	Power Contactor
                                                                                                                                                                                                                                                                                                                                                                                Series	SIRIUS 3RT1
                                                                                                                                                                                                                                                                                                                                                                                Poles	3-Pole
                                                                                                                                                                                                                                                                                                                                                                                Rated Current	150 A at AC-3, 400 V
                                                                                                                                                                                                                                                                                                                                                                                AC-1 Current	185 A at 40°C
                                                                                                                                                                                                                                                                                                                                                                                Motor Power	75 kW at 400 V AC
                                                                                                                                                                                                                                                                                                                                                                                Coil Voltage	110–127 V AC/DC
                                                                                                                                                                                                                                                                                                                                                                                Coil Frequency	50/60 Hz AC
                                                                                                                                                                                                                                                                                                                                                                                Auxiliary Contacts	2 NO + 2 NC
                                                                                                                                                                                                                                                                                                                                                                                Contactor Size	S6
                                                                                                                                                                                                                                                                                                                                                                                Main Connection	Busbar
                                                                                                                                                                                                                                                                                                                                                                                Auxiliary Connection	Screw terminals
                                                                                                                                                                                                                                                                                                                                                                                Mounting	Screw fixing
                                                                                                                                                                                                                                                                                                                                                                                Operating Temperature	-25 to +60°C
                                                                                                                                                                                                                                                                                                                                                                                Protection	IP20 with appropriate cover/box terminal
                                                                                                                                                                                                                                                                                                                                                                                Weight	Approx. 3.36 kg

                                                                                                                                                                                                                                                                                                                                                                                Siemens identifies this model as a 3-pole SIRIUS power contactor rated 150 A / 75 kW at 400 V AC, with a 110–127 V AC/DC control coil and 2 NO + 2 NC auxiliary contacts.

                                                                                                                                                                                                                                                                                                                                                                                Advantages & Features

                                                                                                                                                                                                                                                                                                                                                                                • High-current contactor for demanding industrial motor applications.
                                                                                                                                                                                                                                                                                                                                                                                • Supports both AC and DC coil operation.
                                                                                                                                                                                                                                                                                                                                                                                • 150 A AC-3 rating for 400 V motor switching.
                                                                                                                                                                                                                                                                                                                                                                                • Integrated 2 NO + 2 NC auxiliary contacts.
                                                                                                                                                                                                                                                                                                                                                                                • Robust S6-size construction for industrial applications.
                                                                                                                                                                                                                                                                                                                                                                                • Compatible with the modular Siemens SIRIUS system.
                                                                                                                                                                                                                                                                                                                                                                                • Suitable for IEC and UL/CSA applications.

                                                                                                                                                                                                                                                                                                                                                                                Applications

                                                                                                                                                                                                                                                                                                                                                                                • Industrial motor control
                                                                                                                                                                                                                                                                                                                                                                                • Motor starters
                                                                                                                                                                                                                                                                                                                                                                                • Factory automation
                                                                                                                                                                                                                                                                                                                                                                                • Pumps and compressors
                                                                                                                                                                                                                                                                                                                                                                                • Conveyors
                                                                                                                                                                                                                                                                                                                                                                                • Fans and ventilation systems
                                                                                                                                                                                                                                                                                                                                                                                • Machine tools
                                                                                                                                                                                                                                                                                                                                                                                • Production equipment
                                                                                                                                                                                                                                                                                                                                                                                • Industrial control cabinets

                                                                                                                                                                                                                                                                                                                                                                                Precautions

                                                                                                                                                                                                                                                                                                                                                                                • Confirm the 110–127 V AC/DC coil voltage before installation.
                                                                                                                                                                                                                                                                                                                                                                                • Verify motor current and power against the AC-3 rating.
                                                                                                                                                                                                                                                                                                                                                                                • Disconnect power before wiring or replacing the contactor.
                                                                                                                                                                                                                                                                                                                                                                                • Use appropriate short-circuit protection and overload protection.
                                                                                                                                                                                                                                                                                                                                                                                • Ensure correct busbar and terminal connections.
                                                                                                                                                                                                                                                                                                                                                                                • Maintain the required electrical clearances and ventilation.
                                                                                                                                                                                                                                                                                                                                                                                • Check auxiliary-contact configuration before connecting control circuits.

                                                                                                                                                                                                                                                                                                                                                                                 

                                                                                                                                                                                                                                                                                                                                                                                 

.The structure and details of the product：

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