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Siemens CONTACTOR SIZE 0: 3-Pole, 4kW, 380/400V, 24V AC Coil, 22 Aux Contacts

Siemens Size 0, 3-pole contactor with 4kW rating and 24V AC coil.

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ManufacturerSiemens

Part number3TF4022-0AC2

Size 0

Poles 3

Rating AC-3, 4kW @ 400/380V

Coil Voltage 24V AC

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Size 0 Contactor 3-Pole Configuration 4kW Power Rating (AC-3) 24V AC Coil 2NO + 2NC Auxiliary Contacts Robust Siemens Design

Product description

The Siemens 3TF4022-0AC2 is a Size 0, 3-pole contactor rated for AC-3 duty with a power handling capability of 4 kW at 400/380V. It features a 24V AC coil for operation and comes equipped with 2 auxiliary contacts (2 Normally Open and 2 Normally Closed) for additional control or signaling circuits.

This contactor is suitable for switching motors, transformers, and other inductive or resistive loads in industrial applications. It is commonly used in motor control centers, power distribution panels, and general machinery control where reliable switching is required.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, offers the Siemens 3TF4022-0AC2 contactor. We provide quality, tested components to keep your automation systems running. Trust Stanlo for your electrical component needs.

Technical specifications

Size	0
Poles	3
Rating	AC-3, 4kW @ 400/380V
Coil Voltage	24V AC
Auxiliary Contacts	22 (2NO + 2NC)

Common applications

Motor Control

Power Distribution

Industrial Machinery

Control Panels

Switchgear

Compatible systems

Motor Control Circuits Industrial Power Distribution Control Panels

Also known as

Siemens 3TF4022-0AC2 Contactor 3TF40220AC2 Siemens Size 0 Contactor

Replaces / compatible with

This contactor is a standard component for many motor control applications. For exact replacements, verify coil voltage and contact configuration.

Technical note

Expert tip

Ensure the 24V AC coil voltage is correctly supplied to prevent premature coil failure or improper operation of the contactor.

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Frequently asked questions

What are the auxiliary contacts included with the Siemens 3TF4022-0AC2 contactor?

The Siemens 3TF4022-0AC2 contactor is equipped with 22 auxiliary contacts, which means it has 2 Normally Open (NO) and 2 Normally Closed (NC) contacts. These provide additional switching capabilities for control circuits.