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Siemens 3RT1035-1BB44-3MA0 SIRIUS 40A 24V DC Contactor

Siemens 3RT1035-1BB44-3MA0 SIRIUS 3-pole contactor with aux contacts.

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ManufacturerSiemens

Part number3RT1035-1BB44-3MA0

AC-3 Rating 40A

Power Rating 18.5 kW @ 400V

Coil Voltage 24V DC

Auxiliary Contacts 2 NO + 2 NC

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3-pole configuration AC-3 rated 40A current rating 24V DC coil 2 NO + 2 NC auxiliary contacts Size S2 frame Captive auxiliary switch

Product description

The Siemens 3RT1035-1BB44-3MA0 is a 3-pole power contactor from the SIRIUS 3RT10 series, designed for AC-3 applications. It is rated for 40A at 400V and can handle up to 18.5 kW of power. This contactor features a 24V DC coil and includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, along with screw terminals and a Size S2 frame. It is noted for captive auxiliary switch applications.

This contactor is built for reliable motor control in industrial and commercial settings, providing consistent electrical performance. The integrated auxiliary contacts offer enhanced control and signaling capabilities.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT1035-1BB44-3MA0. We are committed to providing dependable industrial automation components and ensuring the availability of parts to minimize your operational downtime.

Technical specifications

AC-3 Rating	40A
Power Rating	18.5 kW @ 400V
Coil Voltage	24V DC
Auxiliary Contacts	2 NO + 2 NC
Poles	3
Size	S2
Connection	Screw Terminal

Common applications

Motor Control

Industrial Automation

Control Panels

Signaling Circuits

SUVA applications

Compatible systems

General motor control applications with captive auxiliary switch requirements

Also known as

3RT10351BB443MA0 Siemens SIRIUS Contactor

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RT2028-1BB44-3MA0.

Technical note

Expert tip

This unit is a phased-out product. The successor is the 3RT2028-1BB44-3MA0.

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Frequently asked questions

What is special about the auxiliary switches on the Siemens 3RT1035-1BB44-3MA0?

The Siemens 3RT1035-1BB44-3MA0 features captive auxiliary switches, designed for specific applications such as SUVA applications, ensuring reliable integration and operation.