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Siemens 3RT2017-1HB42 PLC Output Contactor - 12A, 5.5kW, 24V DC

Siemens 3RT2017-1HB42 PLC output compatible DC contactor.

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ManufacturerSiemens

Part number3RT2017-1HB42

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 with wide range (0.7-1.25*Uc) Suitable for PLC outputs 1 NC auxiliary contact Size S00

Product description

The Siemens 3RT2017-1HB42 is a specialized 3-pole power contactor designed for AC-3e/AC-3 applications, rated at 12A and 5.5kW (400V). It features a 24V DC coil with a control voltage range of 0.7-1.25*Uc, specifically engineered for compatibility with PLC outputs. This model includes one normally closed (NC) auxiliary contact. It is in size S00 and uses screw terminals, with the notable characteristic that no additional auxiliary switches can be added.

This contactor is an excellent choice for direct interfacing with PLC outputs due to its specific coil characteristics that prevent damage to the PLC. It's suitable for motor control, general switching, and automation tasks in environments where PLCs are the primary control source.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT2017-1HB42. We provide reliable, tested surplus components to ensure your automation systems function optimally. Partner with Stanlo Automation for your essential industrial parts sourcing.

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 (0.7-1.25*Uc)
Auxiliary Contacts	1 NC
Feature	PLC output compatible, no add-on switch
Terminal Type	Screw
Size	S00

Common applications

PLC controlled systems

Motor control

Industrial automation

Machine control

Automation panels

Distributed control systems

Compatible systems

Siemens SIRIUS 3RT2 series Compatible with PLC outputs (e.g., Siemens S7, Allen-Bradley ControlLogix/CompactLogix)

Also known as

Siemens SIRIUS 3RT2017-1HB42 3RT20171HB42 Siemens PLC Contactor S00

Replaces / compatible with

This contactor is designed to interface directly with PLC outputs without requiring additional interface modules. It can replace standard contactors in applications where PLC output protection is critical.

Technical note

Expert tip

The 'no auxiliary switch can be added' feature means this unit is fixed with its integrated contacts, simplifying selection for specific PLC applications.

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Frequently asked questions

Why is the Siemens 3RT2017-1HB42 suitable for PLC outputs?

The Siemens 3RT2017-1HB42 is designed with a coil voltage range (0.7-1.25*Uc) and internal characteristics that minimize current draw and prevent back-voltage issues, making it safe for direct connection to sensitive PLC outputs.