3RT1046-1BB40

The 3RT1046-1BB40 is a Siemens SIRIUS S3 frame standard three-pole contactor with a rated current of 95A for AC-3 (up to 120A for AC-1), a power of 45kW, a coil voltage of 24V DC, a threaded terminal design, and a weight of approximately 2.8 kg. It is suitable for the on/off control circuits of medium to large motor control panels.

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Siemens SIRIUS 3RT1046-1BB40 24VDC power contactor product image

Product Positioning

The 3RT1046-1BB40 is a Siemens SIRIUS S3 frame standard power contactor. Unlike the larger S6 frame models, it is a medium-sized independent contactor. It has an AC-3 rated current of 95A, a power of 45kW, and a coil voltage of 24V DC. Its threaded terminals facilitate wiring, and it is commonly used in general factory motor control panels. This model has been discontinued by the manufacturer; it is recommended to evaluate and replace it with the SIRIUS 3RT2 series 3RT2046-1KB40 for future projects.

Core Product Advantages and Features

S3 Standard Framework

Medium-sized independent contactor, distinct from the S6 large series

24V DC coil

Applicable DC control power supply drive circuit

AC-3 95A/45kW

Meets the starting load requirements of medium and large three-phase motors

Threaded terminal design

Both the main circuit and the auxiliary circuit use threaded connections.

Original manufacturer listed as obsolete

It is recommended to evaluate the 3RT2046-1KB40 connector model for new projects.

project	Specification
series	SIRIUS 3RT10
Frame size	S3
coil voltage	24V DC
AC-3 rated current	95 A
AC-1 rated current	120 A
AC-3 Rated Power (400V)	45 kW
Extreme number	3 poles
Terminal type	screw terminal
External dimensions	146 x 70 x 152 mm
net weight	Approximately 2.832 kg
Recommended alternative models	3RT2046-1KB40

Recommend

3RT105-ACCE

The model number "3RT105-ACCE" provided by the source does not conform to the naming rules of Siemens SIRIUS 3RT10 series standard contactors, and there is no corresponding official part number record. The actual item and specifications cannot be confirmed. It may be an incomplete or informal code. It is recommended that the customer assist in verifying the correct and complete part number before providing a quotation.

3RT1046-1B

3RT1046-1B is the basic part number for Siemens SIRIUS S3 frame three-pole contactors. It only indicates the frame and contact configuration. The complete model number needs to be followed by a voltage suffix, such as BB40 for 24VDC and BF40 for 110VDC. The basic specifications are AC-3 rated 95A and power 45kW. It is recommended that customers provide the complete model number for quotation purposes.

3RT1046-1AN20

The Siemens SIRIUS 3RT1046-1AN20 power contactor features a 3-pole design, AC-3 rated current of 95A, 45kW output at 400V, 220V AC coil drive, screw terminal connection, and a robust S3-size mechanism. It is suitable for direct starting of medium and large motors and various power control applications, ensuring stable and reliable operation.