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Siemens 3TF4111-0A 3-Pole AC-3 Contactor - 5.5kW

Siemens 3TF4111-0A 3-Pole AC-3 Contactor with 1NO/1NC Aux

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ManufacturerSiemens

Part number3TF4111-0A

Poles 3

AC-3 Rating 5.5kW @ 400/380V

Auxiliary Contacts 1 NO + 1 NC

Series 3TF4

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3-Pole Configuration AC-3 Duty Rating 5.5kW Power Capacity Integrated 1 NO + 1 NC Auxiliary Contacts Siemens 3TF4 Series Durability

Product description

The Siemens 3TF4111-0A is a 3-pole AC-3 rated contactor, part of the dependable Siemens 3TF4 series. It is designed for controlling AC motors and loads up to 5.5kW at 400/380V. This model includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, which is crucial for feedback, signaling, and basic interlocking in control systems.

This contactor is ideal for general-purpose motor control, HVAC applications, and other industrial loads requiring reliable switching. Its compact design and robust construction ensure long service life.

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Technical specifications

Poles	3
AC-3 Rating	5.5kW @ 400/380V
Auxiliary Contacts	1 NO + 1 NC
Series	3TF4

Common applications

Motor Control

HVAC Systems

Pump Control

Industrial Loads

Control Signaling

Basic Interlocking

Compatible systems

Compatible with Siemens overload relays and systems designed for the 3TF4 series.

Also known as

Siemens Contactor 3TF4111-0A 3TF41110A

Replaces / compatible with

This contactor is a direct replacement for the Siemens 3TF4111-0A and is suitable for applications requiring 3-pole switching with integrated auxiliary contacts.

Technical note

Expert tip

The integrated auxiliary contacts can be wired into PLC input modules for status monitoring or used in safety interlock circuits.

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Frequently asked questions

What are the auxiliary contact details for the Siemens 3TF4111-0A?

The Siemens 3TF4111-0A features 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, providing essential signaling and control functions.