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Siemens 3RT2017-1FB41 DC Contactor with Diode - 12A, 5.5kW, 24V DC

Siemens 3RT2017-1FB41 DC contactor with integrated diode.

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ManufacturerSiemens

Part number3RT2017-1FB41

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 Integrated suppression diode 1 NO auxiliary contact Size S00

Product description

The Siemens 3RT2017-1FB41 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated at 12A and 5.5kW (400V). It operates with a 24V DC coil and features an integrated suppression diode to protect the control circuit from voltage spikes when the coil is de-energized. This model includes one normally open (NO) auxiliary contact and is built in the compact S00 size with screw terminals.

This contactor is ideal for DC control circuits where inductive coil loads can generate back EMF. The integrated diode provides effective surge suppression, simplifying installation and improving the reliability of control systems in industrial automation, machinery, and power distribution.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT2017-1FB41. We provide high-quality, tested surplus components to ensure your industrial operations run efficiently. Count on Stanlo Automation for your essential automation parts sourcing 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	1 NO
Feature	Integrated suppression diode
Terminal Type	Screw
Size	S00

Common applications

DC control circuits

Motor starting

Industrial automation

Machinery control

Load switching

Applications with inductive loads

Compatible systems

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

Also known as

Siemens SIRIUS 3RT2017-1FB41 3RT20171FB41 Siemens 24V DC Contactor with Diode

Replaces / compatible with

This contactor with an integrated diode can replace similar DC contactors where surge protection is required. It is part of the Siemens SIRIUS 3RT2 series, ensuring compatibility with related accessories.

Technical note

Expert tip

The integrated suppression diode is designed for typical inductive loads. If your application involves very high inductance, verify its effectiveness or consider an external suppressor.

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Frequently asked questions

What is the purpose of the integrated diode in the Siemens 3RT2017-1FB41 contactor?

The integrated suppression diode in the Siemens 3RT2017-1FB41 protects the control circuit from damaging voltage spikes (back EMF) that occur when the 24V DC coil is de-energized. This enhances system reliability and longevity.