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Siemens 3RT2017-2FB44-3MA0 Contactor | 12A, 24V DC, 2NO+2NC Aux, Diode

Siemens 3RT2017-2FB44-3MA0 contactor, 12A, 24V DC, 2NO+2NC aux, diode.

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ManufacturerSiemens

Part number3RT2017-2FB44-3MA0

Type AC-3e/AC-3

Current Rating 12A

Power Rating 5.5 kW / 400 V

Poles 3

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AC-3e/AC-3 rating 12A current capacity 24V DC coil Integrated suppressor diode 2 NO + 2 NC auxiliary contacts Captive auxiliary switch Spring-loaded terminals Size S00

Product description

The Siemens 3RT2017-2FB44-3MA0 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 12A and 5.5kW at 400V. It features a 24V DC coil, an integrated suppressor diode, and a more extensive auxiliary contact configuration of 2 normally open (NO) and 2 normally closed (NC) contacts. This model uses spring-loaded terminals and is built in the S00 size frame, also featuring a captive auxiliary switch.

This contactor is designed for complex control systems requiring multiple auxiliary contacts for interlocking, signaling, and status feedback. Its integrated diode provides coil protection, making it suitable for advanced automation in manufacturing, material handling, and control panel building.

As a veteran-owned surplus parts distributor, Stanlo Automation proudly offers the Siemens 3RT2017-2FB44-3MA0. We are committed to providing high-quality, reliable automation components at competitive prices, ensuring your critical systems remain operational. Choose Stanlo for your specialized Siemens contactor needs.

Technical specifications

Type	AC-3e/AC-3
Current Rating	12A
Power Rating	5.5 kW / 400 V
Poles	3
Coil Voltage	24 V DC
Auxiliary Contacts	2 NO + 2 NC
Features	Integrated Diode, Captive Auxiliary Switch
Terminal Type	Spring-loaded
Size	S00

Common applications

Complex motor control

Automation systems

Control panels

Interlocking circuits

Signaling

Status feedback

Manufacturing automation

Compatible systems

PLC inputs/outputs Control logic systems Complex automation circuits

Also known as

Siemens 3RT2017-2FB44-3MA0 Multi-Contact Contactor 3RT20172FB443MA0 Siemens Siemens 12A DC Contactor 2NO2NC

Replaces / compatible with

This contactor with multiple auxiliary contacts and integrated diode can replace standard Siemens contactors and separate auxiliary blocks, simplifying installations. It is part of the Siemens 3RT2 series.

Technical note

Expert tip

The captive auxiliary switch on the 3RT2017-2FB44-3MA0 ensures that the auxiliary contacts cannot be accidentally detached during maintenance or operation.

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Frequently asked questions

How many auxiliary contacts does the Siemens 3RT2017-2FB44-3MA0 have?

The Siemens 3RT2017-2FB44-3MA0 power contactor is equipped with a substantial 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. It also features an integrated suppressor diode and a captive auxiliary switch.