The Siemens 3RT1065-6AF368K is a heavy-duty SIRIUS 3RT1 3-pole power contactor engineered for high-power industrial switching and heavy motor control applications. Supplied without an operating coil, it provides maximum flexibility, allowing engineers and panel builders to select and fit the appropriate AC or DC control coil as per specific project requirements.
High Load Capacity (265A AC-3): Rated for heavy-duty switching of 3-phase motors up to 132 kW at 400V AC.
Flexible Operating Coil Selection: Comes without a pre-installed coil, allowing customization with various AC or DC coil voltages depending on your control system setup.
Integrated 2NO + 2NC Auxiliary Contacts: Includes 2 Normally Open and 2 Normally Closed auxiliary contacts for advance interlocking, status feedback, and automation logic.
Busbar Main Terminals: Designed with high-capacity busbar terminals for main power connections and reliable screw terminals for control/auxiliary wiring.
Size S10 Frame Design: Built for high power density and reliable thermal performance in Motor Control Centers (MCCs) and heavy distribution panels.
Siemens SIRIUS Standards: Delivers exceptional electrical endurance, high switching capabilities, and maximum operational reliability in rugged industrial environments.
Motor Control Centers (MCC) & Main Power Distribution Panels
Heavy Industrial Pumps, Compressors, and Blowers
Large Conveyors & Material Handling Systems
Heavy HVAC & Refrigeration Systems
OEM Heavy Machinery & Automation Infrastructure
Q1: Does the Siemens 3RT1065-6AF368K contactor come with an operating coil?
A: No, this specific model is supplied without an operating coil. You will need to select and install a compatible Siemens AC or DC coil depending on your circuit voltage requirements.
Q2: What is the maximum motor power supported by this contactor?
A: It is rated for 265A (AC-3) and can safely drive 3-phase industrial motors up to 132 kW at 400V AC.
Q3: How many auxiliary contacts are built into this contactor?
A: This contactor features integrated 2NO (Normally Open) + 2NC (Normally Closed) auxiliary contacts for control logic and interlocking functions.
Q4: What type of power terminal connections does this model use?
A: It utilizes busbar terminals for the main high-current power poles and screw terminals for the control and auxiliary circuits to ensure secure, low-resistance connections.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3RT1065-6AF368K |
| Product Series | SIRIUS 3RT1 |
| Product Type | Power Contactor (Without Operating Coil) |
| Coil | Not Included (Order Separately) |
| Rated Operational Current (AC-3) | 265 A |
| Motor Rating | 132 kW at 400 V AC |
| Main Contacts | 3 Pole |
| Auxiliary Contacts | 2NO + 2NC |
| Main Circuit Connection | Busbar |
| Control Circuit Connection | Screw Terminals |
| Auxiliary Circuit Connection | Screw Terminals |
| Rated Insulation Voltage | 1000 V |
| Surge Withstand Voltage | 8 kV (Main Circuit) |
| Mechanical Life | Up to 10 Million Operating Cycles |
| Contactor Size | S10 |
| Mounting | Panel Mount |
| Standard | IEC 60947-4-1 |
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