3RT1066-6AF36

The Siemens SIRIUS 3RT10 series S10 large frame contactor, AC-3 rated 160kW (400V), with an operating coil of 110-127V AC/DC, is suitable for 110V control power distribution panels. It comes standard with 2NO+2NC auxiliary contacts, weighs approximately 6.57 kg, and has a robust structure.

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Siemens SIRIUS 3RT1066-6AF36 large power contactor (actual photo)

Product Positioning

The 3RT1066-6AF36 is a Siemens SIRIUS S10 large-frame power contactor with an operating coil voltage of 110-127V AC/DC. It is suitable for use with large switchboards and motor starting circuits in US-standard or existing 110V control power supplies. The main circuit AC-3 is rated at 160kW (400V), weighs approximately 6.57 kg, and comes standard with 2NO+2NC auxiliary contacts. Kenxin Motors provides genuine Siemens parts and selection advice.

Core Product Advantages and Features

110-127V AC/DC operating coil

Suitable for use with 110V AC/DC control power supplies, commonly found in US standard control panels.

S10 large frame, 160kW (400V)

The main circuit AC-3 is rated at 160kW (400V), 200kW (500V), and 250kW (690V).

Standard auxiliary contacts

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

Busbar main circuit terminals

The main circuit adopts a connecting bar design, paired with large cross-sectional area conductors, which facilitates wiring.

Precise weight and dimensions data

The actual weight is approximately 6.57 kg, and the dimensions are 210x145x202 mm, which is beneficial for chassis design.

Original manufacturer 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 Power (400V)	160 kW
AC-3 rated power (500V)	200 kW
AC-3 rated power (690V)	250 kW
Auxiliary contact	2NO + 2NC instantaneous contact
Operating coil voltage	110...127V AC/DC
weight	6.57 kg
External dimensions (height x width x depth)	210 x 145 x 202 mm
Main circuit wiring method	Connector bus (busbar)
Applicable Standards	IEC 60947-4-1

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3RT1066-6AP36

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3RT1066-6AB36

The Siemens SIRIUS 3RT1066-6AB36 is a large S10 frame power contactor with a rated current of 300A (AC-3) and the ability to switch 160kW loads at 400V. It features a 23-26V AC/DC wide-range coil and 2NO+2NC auxiliary contacts. The main circuit uses bus terminals, making it suitable for integrated applications with large motors and switchboards.

3RT1066-2AP36

The Siemens 3RT1066-2AP36 is a large S10 frame power contactor with a rated current of 300A (AC-3) and a power of 160kW at 400V. It is equipped with a 220-240V AC/DC coil and 2NO+2NC auxiliary contacts. The actual measured weight of the whole unit is about 6.52 kg. It is suitable for motor control centers and large power distribution systems.