3RT1066-6NP36

The Siemens SIRIUS 3RT10 series S10 large-base power contactor has a main circuit rated AC-3 of 300A and 160kW (400V). It adopts an electronic operating mechanism, supplies 200-277V AC/DC power and has a 24V DC PLC interface. It comes standard with 2NO+2NC auxiliary contacts and is suitable for PLC automation control systems.

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Photos of Siemens SIRIUS 3RT1066-6NP36 electronic operating mechanism large contactor

Product Positioning

The 3RT1066-6NP36 is a Siemens SIRIUS S10 large-base power contactor with an electronic operating mechanism. It supplies power in voltages ranging from 200-277V AC/DC and provides a 24V DC signal for direct connection to PLC controllers, significantly simplifying wiring in automation control panels. The main circuit AC-3 is rated at 300A and 160kW, suitable for controlling large motors and heavy electrical loads.

Core Product Advantages and Features

Electronic operating mechanism

By replacing the traditional electromagnetic coil with an electronic module, the starting energy consumption is low and the operation is more precise.

PLC Interface Design

The electronic module has a 24V DC signal interface, which can be directly connected to a PLC control system.

200-277V AC/DC power supply range

It has a wide power supply voltage range and is suitable for various control power supply environments.

S10 large frame, 300A/160kW

The main circuit AC-3 is rated at 300A and 160kW (400V), suitable for controlling large motors.

Standard auxiliary contacts

Built-in 2NO+2NC instantaneous auxiliary contacts facilitate loop interlocking and signal feedback.

Original factory authorized supplier

Kenxin Motors is an authorized distributor of Siemens, providing genuine products, warranty, and technical support.

project	Specification
series	SIRIUS 3RT10 Large Electric Contactor
Base size	S10
Extreme number	3 poles
Main contact type	3 sets of normally open (NO)
AC-3 Rated Current/Power (400V)	300 A / 160 kW
AC-3 Rated Current/Power (500V)	300 A / 200 kW
AC-3 Rated Current/Power (690V)	280 A / 250 kW
Auxiliary contact	2NO + 2NC instantaneous contact
Operating mechanism type	Electronic operating mechanism with PLC interface
Control the power supply voltage	200...277V AC/DC
PLC interface signal voltage	24V DC
weight	Approximately 6.61 kg
External dimensions (height x width x depth)	210 x 145 x 202 mm
Main circuit wiring method	Connector bus (busbar)

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3RT1066-6NB36

The Siemens SIRIUS 3RT10 series S10 large frame contactor, AC-3 rated 300A, 160kW (400V), adopts the same electronic operating mechanism and has a PLC interface, but the power supply is about 20-33V (approximately 24V) AC/DC, which is a different voltage classification from the 200-277V of the 6NP36.

3RT1066-6LA06

The Siemens SIRIUS 3RT10 series S10 large frame contactor body, AC-3 rated 300A, 160kW (400V), has 3 sets of normally open main contacts with 2NO+2NC auxiliary contacts. The operating coil is not included at the factory, but it is suitable for use with a dedicated coil module, allowing for flexible configuration of the control power supply.