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Siemens 3TF4722-0BB4 3-Pole Contactor

Siemens 3TF4722-0BB4 3-pole AC-3 contactor, 30kW, 400V.

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ManufacturerSiemens

Part number3TF4722-0BB4

Part Number 3TF4722-0BB4

Manufacturer Siemens

Poles 3-Pole

AC-3 Rating 30kW @ 400V/380V

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3-Pole AC-3 Operation 30kW Switching Capacity 24V DC Coil 2 NO + 2 NC Auxiliary Contacts Robust Design Screw Terminals

Product description

The Siemens 3TF4722-0BB4 is a 3-pole contactor designed for AC-3 duty, capable of switching a 30kW load at 400V/380V. It features a 24V DC solenoid coil and includes auxiliary contacts: 2 normally open (NO) and 2 normally closed (NC) for control and signaling purposes. This contactor is built for reliable operation in industrial power distribution and motor control applications.

This component is suitable for a wide range of applications including motor starting, load switching, and capacitor bank control in various industrial settings such as manufacturing plants, power distribution systems, and heavy machinery operations. Its robust design ensures durability and consistent performance under demanding conditions.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TF4722-0BB4 contactor. We provide reliable access to essential industrial electrical components, ensuring your systems are powered and controlled effectively with quality surplus parts.

Technical specifications

Part Number	3TF4722-0BB4
Manufacturer	Siemens
Poles	3-Pole
AC-3 Rating	30kW @ 400V/380V
Coil Voltage	24V DC
Auxiliary Contacts	2 NO + 2 NC
Terminals	Screw Terminals

Common applications

Motor Control

Power Switching

Industrial Automation

Electrical Distribution

Machine Control

HVAC Systems

Compatible systems

AC motors and electrical loads requiring AC-3 switching ratings.

Also known as

Siemens 30kW Contactor 24VDC Coil Contactor 3-Phase Contactor

Replaces / compatible with

This Siemens 3TF4722-0BB4 contactor replaces older models and is a standard component for AC-3 motor control applications.

Technical note

Expert tip

Ensure the 24V DC coil voltage is correctly supplied to the contactor; incorrect voltage can lead to non-operation or coil damage.

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Frequently asked questions

What is the coil voltage and auxiliary contact configuration for the Siemens 3TF4722-0BB4 contactor?

The Siemens 3TF4722-0BB4 contactor features a 24V DC coil voltage and includes auxiliary contacts with a configuration of 2 normally open (NO) and 2 normally closed (NC).