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Siemens 3TF4222-0B Size 1 Contactor - 7.5kW, DC Operation

Siemens 3TF4222-0B Size 1 Contactor, 7.5kW, DC Coil, 2NO+2NC Aux.

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ManufacturerSiemens

Part number3TF4222-0B

Poles 3

AC-3 Rating 7.5kW

Coil Voltage DC (Specific voltage varies by sub-model, e.g., 24V DC)

Auxiliary Contacts 2NO+2NC

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3-Pole AC-3 Operation 7.5kW Power Rating DC Coil 2NO+2NC Auxiliary Contacts Size 1 Contactor

Product description

The Siemens 3TF4222-0B is a Size 1, 3-pole contactor rated for AC-3 applications at 7.5kW and 400/380V. This model is configured for DC operation and features 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, offering enhanced control capabilities. The specific DC coil voltage should be confirmed based on the exact model variant.

This contactor is suited for industrial automation and motor control where DC coil operation is required, such as in battery-powered systems or specific control circuits. It finds applications in various industries including material handling, machinery, and power systems.

Stanlo Automation, a veteran-owned business, provides surplus industrial automation parts like the Siemens 3TF4222-0B. We focus on delivering quality and reliability to help you maintain your operational continuity.

Technical specifications

Poles	3
AC-3 Rating	7.5kW
Coil Voltage	DC (Specific voltage varies by sub-model, e.g., 24V DC)
Auxiliary Contacts	2NO+2NC
Size	1
Operation	DC

Common applications

Motor Control

Industrial Automation

Material Handling

DC Control Circuits

Machinery

Compatible systems

DC Motor Control and Switching Applications

Also known as

Siemens 3TF4222 DC Contactor Siemens DC Coil Contactor Size 1 DC Contactor

Replaces / compatible with

This contactor is part of the Siemens 3TF series, suitable for DC-operated motor control and switching tasks.

Technical note

Expert tip

Ensure the correct DC coil voltage is supplied to prevent overheating or failure of the contactor.

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Frequently asked questions

What distinguishes the Siemens 3TF4222-0B from other 3TF4222 variants?

The primary distinction of the Siemens 3TF4222-0B is its DC coil operation, whereas other variants like the -0AK6 use AC coils. It also features 2NO+2NC auxiliary contacts, providing expanded control logic capabilities.