3RT1055-1AB36

The Siemens SIRIUS 3RT1055-1AB36 is a large three-pole contactor with an S6 frame. It has an AC-3 rated current of 150A, corresponding to approximately 75kW at 400V. The control coil is 23-26V AC/DC, and the main circuit has square terminals (BX LUG). It also has two normally open and two normally closed auxiliary contacts, making it suitable for wiring of high-current motor control panels.

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Siemens SIRIUS 3RT1055-1AB36 S6 Large Contactor 150A

Product Positioning

The 3RT1055-1AB36 is a Siemens SIRIUS series S6 frame large contactor, specifically designed for controlling high-horsepower motors up to 150A and 75kW. Its square terminal main circuit is paired with a 23-26V control coil, ensuring clean installation and wiring. Kenxin Motors has stock available and provides technical consultation to assist with quick selection and comparison.

Core Product Advantages and Features

S6 Large Contactor Frame

It belongs to the Siemens SIRIUS 3RT10 series S6 frame and is suitable for the control of large motors with high current three-pole main circuits.

AC-3 rated 150A/75kW

The AC-3 is a rated current of 150A, corresponding to approximately 75kW at 400V, suitable for heavy-duty applications such as large pumps and fans.

23-26V AC/DC control coil

The coil voltage covers 23-26V AC/DC, which can be used in low-voltage control circuit design.

Square terminal main circuit

The main circuit uses square terminals (BX LUG) for easy crimping of terminals or busbars, simplifying high-current wiring.

2NO+2NC auxiliary contacts

It has two sets of normally open and two sets of normally closed instantaneous auxiliary contacts, which can be used for interlocking, indication or PLC signal feedback.

Genuine products, reliable quality

Kenxin Motors is an authorized distributor of Siemens, providing original factory warranty and complete technical support.

project	Specification
brand	Siemens
series	SIRIUS 3RT10
model	3RT1055-1AB36
Frame size	S6
Extreme number	3 poles
AC-3 rated current	150 A
AC-3 power rating (400V)	75 kW
Control coil voltage	23-26 V AC/DC
Auxiliary contact	2 NO + 2 NC
Main circuit terminals	Square terminal (BX LUG)
Drive type	Traditional electromagnetic
Reference weight	Approximately 3.6 kg (8 lbs)

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3RT1055-0AP36

The Siemens SIRIUS 3RT1055-0AP36 is a large three-pole contactor with an S6 frame. It has a rated current of 150A for AC-3, corresponding to approximately 75kW at 400V. The control coil covers 220-240V AC (50-60Hz) and compatible DC, and has two normally open and two normally closed auxiliary contacts. The main circuit uses screw terminals.