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Siemens 3RT2017-1BB44-3MA0 Contactor - 12A, 5.5kW, 24V DC, 2NO+2NC

Siemens 3RT2017-1BB44-3MA0 DC contactor with 2NO+2NC aux.

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ManufacturerSiemens

Part number3RT2017-1BB44-3MA0

Type Power Contactor

AC-3e/AC-3 Rating 12A

Power Rating 5.5 kW @ 400 V

Poles 3

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AC-3e/AC-3 rated 5.5 kW power capacity 24V DC coil 2 NO + 2 NC auxiliary contacts Captive auxiliary switch Size S00

Product description

The Siemens 3RT2017-1BB44-3MA0 is a high-performance 3-pole power contactor, rated for AC-3e/AC-3 applications at 12A and 5.5kW (400V). It features a 24V DC coil, making it ideal for DC control systems. This model stands out with its integrated auxiliary contacts: 2 normally open (NO) and 2 normally closed (NC), along with a captive auxiliary switch. Housed in the compact S00 size, it uses screw terminals for secure connections.

This contactor is engineered for complex control scenarios requiring multiple auxiliary contacts for interlocking or signaling functions. It's commonly found in industrial automation, motor control centers, and machine building where precise control logic is essential.

As a veteran-owned surplus parts distributor, Stanlo Automation offers the Siemens 3RT2017-1BB44-3MA0. We provide reliable, tested surplus components to help you maintain and upgrade your automation systems cost-effectively. Trust Stanlo Automation for your critical part needs.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	12A
Power Rating	5.5 kW @ 400 V
Poles	3
Coil Voltage	24 V DC
Auxiliary Contacts	2 NO + 2 NC
Terminal Type	Screw
Size	S00
Feature	Captive auxiliary switch

Common applications

Motor control

Control interlocking

Automation systems

Machine safety circuits

DC control panels

Industrial control

Compatible systems

Siemens SIRIUS 3RT2 series Compatible with DC control circuits and Siemens accessories

Also known as

Siemens SIRIUS 3RT2017-1BB44-3MA0 3RT20171BB443MA0 Siemens 24V DC Contactor 2NO 2NC

Replaces / compatible with

This model offers enhanced auxiliary contact configurations compared to basic contactors. It can replace units with fewer auxiliary contacts or when additional interlock functions are needed. Consult Siemens documentation for specific compatibility.

Technical note

Expert tip

The captive auxiliary switch cannot be removed, ensuring its integrity in applications requiring guaranteed auxiliary contact operation.

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Frequently asked questions

What are the auxiliary contact configurations on the Siemens 3RT2017-1BB44-3MA0?

The Siemens 3RT2017-1BB44-3MA0 features a comprehensive auxiliary contact setup, including 2 normally open (NO) and 2 normally closed (NC) contacts. It also includes a captive auxiliary switch for added functionality.