3RT1066-0LA06

The Siemens 3RT1066-0LA06 is a large contactor body with a SIRIUS S10 frame. It has a rated current of 300A for AC-3, a power of 160kW at 400V, and can still carry 280A at 690V and 250kW at 690V. It is equipped with 2NO+2NC auxiliary contacts. The coil needs to be selected and installed separately.

Share To

Siemens 3RT1066-0LA06 SIRIUS S10 Large Contactor Body Coil-Free Version

Product Positioning

The 3RT1066-0LA06 is the main body version of the Siemens SIRIUS S10 large contactor. It does not include an operating coil at the factory; a corresponding coil assembly must be selected and installed separately based on the site control voltage. This model has a rated current of 300A for AC-3 and a power of 160kW at 400V. Even in a 690V high-voltage circuit, it can still handle a 280A, 250kW load and is equipped with 2NO+2NC auxiliary contacts, making it suitable for large switchboard designs with a high degree of customization.

Core Product Advantages and Features

The body is designed without coils.

The operating coil is not included in the shipment; however, it can be flexibly selected according to the field voltage, reducing spare parts management costs.

300A/160kW high current

The AC-3 model has a rated current of 300A and a power output of up to 160kW at 400V, making it suitable for heavy-duty motor applications.

High-voltage working condition support

It can still carry 280A and 250kW at 690V, and is suitable for medium and high voltage power distribution systems.

2NO+2NC auxiliary contacts

Provides the signal circuits required for interlocking control and operation monitoring.

Busbar main circuit terminals

Compatible with 70-240mm² conductors to meet high-current wiring requirements.

project	Specification
brand	Siemens
series	SIRIUS 3RT10
model	3RT1066-0LA06
Frame size	S10
Extreme number	3P (3NO main contact)
AC-3 Rated Current/Power (400V/500V)	300A / 160kW
AC-3 Rated Current/Power (690V)	280A / 250kW
AC-3 rated current (1000V)	95A
auxiliary contacts	2NO+2NC
Coil configuration	Coils are not included in the product specifications and must be purchased separately.
Main circuit terminals	Busbar (25mm wide x 6mm thick)
Auxiliary circuit terminals	Screw terminals

Recommend

3RT1066-1AP36

The Siemens 3RT1066-1AP36 belongs to the SIRIUS S10 frame large contactor series. The main body is the same as the 300A/160kW model in the same series. It is equipped with a 220-240V AC/DC coil and 2NO+2NC auxiliary contacts, and is suitable for large motor control and power switching applications.

3RT1065-6SF36

The Siemens 3RT1065-6SF36 is a large S10 frame power contactor with a rated current of 265A in AC-3 mode and a power of 132kW at 400V. It features an electronic wide-range coil and a built-in F-PLC 24VDC fail-safe input, meets SIL CL3 safety level, and is suitable for production lines with high safety requirements.

3RT1065-6LA06-WH

The Siemens 3RT1065-6LA06-WH is a large contactor body with an S10 frame, rated current of 265A in AC-3, power of 132kW at 400V, equipped with 2NO+2NC auxiliary contacts, bus terminals in the main circuit, and the coil needs to be selected separately. The whole machine weighs about 5.87 kg.