The Siemens 3RT1076-6AP368K is a high-current SIRIUS 3RT power contactor designed for industrial motor switching, automation systems and demanding electrical control applications. It features mirror-contact functionality, screw terminals for the control and auxiliary circuits, a conventional AC/DC coil and 3-pole power switching. Siemens product data for the corresponding 3RT1076-6AP36 configuration identifies a 500 A AC-3/AC-3e rating, 250 kW at 400 V, 3 poles and 220–240 V AC/DC control voltage.
The 3RT1076-6AP368K belongs to the Siemens SIRIUS 3RT range of power contactors used for switching and controlling electrical loads in industrial systems.
Its high-current configuration makes it suitable for applications where large motors or electrical loads need reliable contactor-based switching.
Typical applications include:
The contactor must always be selected according to the motor/load current, utilization category, operating voltage and application duty.
The Siemens 3RT1076-6AP36 configuration is specified for 500 A AC-3/AC-3e at 400 V and up to 250 kW at 400 V.
This high switching capacity makes it suitable for demanding three-phase motor applications.
Potential applications include:
The actual application must be checked against the required utilization category and motor characteristics.
The 3RT1076-6AP368K is specified with mirror contacts. Mirror contacts provide auxiliary-contact information that can be used to monitor the state of the main contacts.
They can support applications such as:
Siemens documentation identifies mirror-contact characteristics for this SIRIUS contactor family.
The complete safety function must be designed according to the applicable machine-safety architecture.
The product uses screw terminals for the control and auxiliary circuits, while the main power circuit uses a connection-bar arrangement in this configuration.
Screw terminals provide a familiar connection method for industrial panel builders and maintenance teams.
The 3RT1076-6AP368K uses an AC/DC control coil, with available product information specifying 220–240 V AC/DC for this configuration.
This allows the contactor to be incorporated into compatible industrial control circuits using the specified control voltage.
Always verify the coil voltage against the actual product marking and installation requirements before energizing the device.
Available product information identifies the contactor with 2 NO + 2 NC auxiliary contacts.
These auxiliary contacts can be used for:
This provides additional flexibility when integrating the contactor into automated control systems.
The product is specified as a conventional type contactor. This is suitable for traditional industrial control architectures where the contactor is operated through its control coil and auxiliary contacts are used for feedback or interlocking.
A typical arrangement can be:
PLC / Control Circuit → Contactor Coil → Main Contacts → Motor
The auxiliary contacts can provide status information back to the control system.
The 3RT1076-6AP368K can be incorporated into complete motor-control systems together with:
This makes it suitable for automated production systems and large industrial machines.
The Siemens 3RT1076-6AP368K can be used in:
For related Siemens industrial electrical and automation products, customers can explore the Siemens product range at SB Smart.
The 3RT1076-6AP368K is suitable for OEM machine manufacturers, electrical panel builders, automation integrators and industrial maintenance professionals.
Its combination of high-current switching, mirror contacts, 2NO + 2NC auxiliary contacts, screw-terminal control connections and AC/DC coil operation makes it suitable for demanding industrial motor-control systems.
The Siemens 3RT1076-6AP368K combines high-current AC-3/AC-3e switching, mirror contacts, auxiliary contacts and AC/DC coil operation in a robust SIRIUS 3RT power contactor.
The corresponding Siemens 3RT1076-6AP36 configuration is rated at 500 A AC-3/AC-3e and 250 kW at 400 V, making it suitable for large industrial motor-control applications.
For OEMs, panel builders and automation integrators, it provides a reliable solution for high-power motor switching, interlocking and control-system feedback.
SB Smart supplies Siemens industrial electrical and automation products across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and major cities across India.
Major delivery locations include:
It is a Siemens SIRIUS 3RT power contactor designed for high-current industrial motor-control applications.
The corresponding Siemens configuration is rated up to 500 A AC-3/AC-3e at 400 V.
The listed rating is up to 250 kW at 400 V for the AC-3/AC-3e application.
Yes. The product is specified with mirror-contact functionality.
The control and auxiliary circuits use screw terminals, while the main circuit uses connection bars in this configuration.
Available product information identifies a 220–240 V AC/DC coil.
The product is listed with 2 NO + 2 NC auxiliary contacts.
It can be used in large motor starters, conveyors, pumps, compressors, production machinery and high-power industrial automation systems.
Yes. The auxiliary contacts can provide suitable feedback, interlocking and control signals within a properly designed PLC-based system.
You can explore the Siemens product range at SB Smart for Siemens SIRIUS power contactors, overload relays, motor-control components and other industrial automation products.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Series | SIRIUS 3RT |
| Manufacturer | Siemens |
| Order Code | 3RT1076-6AP368K |
| Product Type | Power Contactor |
| Number of Main Poles | 3 Pole |
| Main Contacts | 3 NO |
| Auxiliary Contacts | 2 NO + 2 NC |
| Contactor Size | S12 |
| Coil Type | Conventional AC/DC Coil |
| Coil Voltage | 220–240V AC/DC |
| Control Voltage Frequency | 50/60 Hz |
| Rated Operational Current (AC-3) | 500 A |
| Rated Operational Current (AC-1) | 610 A |
| Motor Rating @ 400V AC-3 | 250 kW |
| Rated Operational Voltage | Up to 1000 V |
| Terminal Type | Screw Terminals |
| Main Circuit Connection | Busbar |
| Mirror Contact Elements | Yes |
| Mechanical Life | Up to 10 Million Operations |
| Mounting Type | Screw Fixing |
| Operating Temperature | -25°C to +60°C |
| Protection Class | IP00 |
| Application | Motor Control & Power Switching |
| Brand | Siemens |
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