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Siemens 3TH2022-0DB4 Contactor Relay 24V DC

Siemens 3TH2022-0DB4 24V DC Contactor Relay

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ManufacturerSiemens

Part number3TH2022-0DB4

Contacts 2 NO + 2 NC

Coil Voltage 24V DC

Operation DC

Standard EN 50011

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2 NO + 2 NC contacts 24V DC coil operation Screw terminal connections EN 50011 compliant Diode/varistor attachable Compact design

Product description

The Siemens 3TH2022-0DB4 is a 24V DC operated contactor relay featuring 2 normally open (NO) and 2 normally closed (NC) contacts. It is designed according to EN 50011 standards and utilizes screw terminals for connection. Diode or varistor can be attached for surge suppression.

This contactor relay is suitable for control circuits in industrial automation, machine tools, and control panels where reliable switching of auxiliary functions is required. Its compact design allows for easy integration into control cabinets.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3TH2022-0DB4. Note that this is a phased-out product, with the SIRIUS 3RH21 series being its successor. Secure this component while supplies last.

Technical specifications

Contacts	2 NO + 2 NC
Coil Voltage	24V DC
Operation	DC
Standard	EN 50011
Terminals	Screw

Common applications

Control circuits

Auxiliary functions

Industrial automation

Machine control

Control panels

Compatible systems

Control circuits requiring 24V DC switching and a 2 NO / 2 NC contact configuration.

Also known as

Siemens 3TH2022 24V DC Contactor Relay 3RH21 successor

Replaces / compatible with

This is a phased-out product. The successor is the Siemens SIRIUS 3RH21 series contactor relays, offering modern features and availability.

Technical note

Expert tip

While this is a phased-out product, it can still be used to maintain existing systems. Consider the 3RH21 series for new installations or replacements requiring updated technology.

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Frequently asked questions

What is the contact configuration of the Siemens 3TH2022-0DB4 contactor relay?

The Siemens 3TH2022-0DB4 contactor relay has a contact configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, operating on a 24V DC coil.